Mafia Island weather by month

Check out Mafia Island weather averages by month. Compare detailed monthly climate statistics including temperature, rainfall and sunshine figures.

Temperature in Mafia Island (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
31°C maximum daytime temperature in January in Mafia Island31
32°C maximum daytime temperature in February in Mafia Island32
32°C maximum daytime temperature in March in Mafia Island32
31°C maximum daytime temperature in April in Mafia Island31
30°C maximum daytime temperature in May in Mafia Island30
30°C maximum daytime temperature in June in Mafia Island30
29°C maximum daytime temperature in July in Mafia Island29
30°C maximum daytime temperature in August in Mafia Island30
30°C maximum daytime temperature in September in Mafia Island30
31°C maximum daytime temperature in October in Mafia Island31
32°C maximum daytime temperature in November in Mafia Island32
32°C maximum daytime temperature in December in Mafia Island32
Min temperature (night-time)
24°C minimum night-time temperature in January in Mafia Island24
24°C minimum night-time temperature in February in Mafia Island24
23°C minimum night-time temperature in March in Mafia Island23
23°C minimum night-time temperature in April in Mafia Island23
22°C minimum night-time temperature in May in Mafia Island22
20°C minimum night-time temperature in June in Mafia Island20
19°C minimum night-time temperature in July in Mafia Island19
19°C minimum night-time temperature in August in Mafia Island19
19°C minimum night-time temperature in September in Mafia Island19
21°C minimum night-time temperature in October in Mafia Island21
22°C minimum night-time temperature in November in Mafia Island22
23°C minimum night-time temperature in December in Mafia Island23
Heat & Humidity
Very high heat & humidity in January in Mafia IslandVH
Very high heat & humidity in February in Mafia IslandVH
Very high heat & humidity in March in Mafia IslandVH
High heat & humidity in April in Mafia IslandH
High heat & humidity in May in Mafia IslandH
Moderate heat & humidity in June in Mafia IslandM
Moderate heat & humidity in July in Mafia IslandM
Moderate heat & humidity in August in Mafia IslandM
High heat & humidity in September in Mafia IslandH
High heat & humidity in October in Mafia IslandH
High heat & humidity in November in Mafia IslandH
Very high heat & humidity in December in Mafia IslandVH
Sea temperature
28°C sea temperature in January in Mafia Island28
29°C sea temperature in February in Mafia Island29
29°C sea temperature in March in Mafia Island29
29°C sea temperature in April in Mafia Island29
28°C sea temperature in May in Mafia Island28
27°C sea temperature in June in Mafia Island27
26°C sea temperature in July in Mafia Island26
25°C sea temperature in August in Mafia Island25
26°C sea temperature in September in Mafia Island26
26°C sea temperature in October in Mafia Island26
27°C sea temperature in November in Mafia Island27
28°C sea temperature in December in Mafia Island28

Note: 0 = None, L = Low, M = Moderate, H = High, VH = Very high, E = Extreme

Sunshine & Daylight in Mafia Island

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
13 hours of daylight per day in January in Mafia Island13
12 hours of daylight per day in February in Mafia Island12
12 hours of daylight per day in March in Mafia Island12
12 hours of daylight per day in April in Mafia Island12
12 hours of daylight per day in May in Mafia Island12
12 hours of daylight per day in June in Mafia Island12
12 hours of daylight per day in July in Mafia Island12
12 hours of daylight per day in August in Mafia Island12
12 hours of daylight per day in September in Mafia Island12
12 hours of daylight per day in October in Mafia Island12
12 hours of daylight per day in November in Mafia Island12
13 hours of daylight per day in December in Mafia Island13
UV Index (Maximum)
UV (maximum) index 11+ (Extreme) in January in Mafia Island11
UV (maximum) index 11+ (Extreme) in February in Mafia Island11
UV (maximum) index 11+ (Extreme) in March in Mafia Island11
UV (maximum) index 11+ (Extreme) in April in Mafia Island11
UV (maximum) index 10 (Very High) in May in Mafia Island10
UV (maximum) index 9 (Very High) in June in Mafia Island9
UV (maximum) index 9 (Very High) in July in Mafia Island9
UV (maximum) index 11 (Extreme) in August in Mafia Island11
UV (maximum) index 11+ (Extreme) in September in Mafia Island11
UV (maximum) index 11+ (Extreme) in October in Mafia Island11
UV (maximum) index 11+ (Extreme) in November in Mafia Island11
UV (maximum) index 11+ (Extreme) in December in Mafia Island11

Rainfall in Mafia Island

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
13 days with some rainfall in January in Mafia Island13
8 days with some rainfall in February in Mafia Island8
15 days with some rainfall in March in Mafia Island15
17 days with some rainfall in April in Mafia Island17
12 days with some rainfall in May in Mafia Island12
6 days with some rainfall in June in Mafia Island6
6 days with some rainfall in July in Mafia Island6
5 days with some rainfall in August in Mafia Island5
4 days with some rainfall in September in Mafia Island4
6 days with some rainfall in October in Mafia Island6
8 days with some rainfall in November in Mafia Island8
13 days with some rainfall in December in Mafia Island13
Average monthly rainfall (mm)
137 mm monthly rainfall in January in Mafia Island137
96 mm monthly rainfall in February in Mafia Island96
228 mm monthly rainfall in March in Mafia Island228
467 mm monthly rainfall in April in Mafia Island467
257 mm monthly rainfall in May in Mafia Island257
86 mm monthly rainfall in June in Mafia Island86
51 mm monthly rainfall in July in Mafia Island51
32 mm monthly rainfall in August in Mafia Island32
23 mm monthly rainfall in September in Mafia Island23
34 mm monthly rainfall in October in Mafia Island34
102 mm monthly rainfall in November in Mafia Island102
186 mm monthly rainfall in December in Mafia Island186

More about Mafia Island

Mafia Island by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Tanzania

  • Check out holiday rentals for £100 per night or less
  • Browse property locations by map or enter travel dates
  • Filter deals by free cancellation, cleanliness & more

The climate guide for Tanzania (Mafia Island) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

What's the climate like in Mafia Island?

Mafia Island has a hot tropical climate with a winter dry season.

Mafia Island weather in January

Expect daytime maximum temperatures of 31°C in Mafia Island, Tanzania in January and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 13 days with some rainfall and typically 137 mm of rainfall in the month.

  • 31°C maximum daytime temperature in January in Mafia Island31
    31°C max day temperature
  • 7 hours of sunshine per day
  • 13 days with some rainfall in January in Mafia Island13
    13 days with some rainfall
  • 24°C minimum night-time temperature in January in Mafia Island24
    24°C min night temperature
  • 13 hours of daylight per day in January in Mafia Island13
    13 hours of daylight per day
  • Very high heat & humidity in January in Mafia IslandVH
    Very High heat & humidity
  • 137 mm monthly rainfall in January in Mafia Island137
    137 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in January in Mafia Island11
    11+ (Extreme) UV index
  • 28°C sea temperature in January in Mafia Island28
    28°C sea temperature

Back to months

Mafia Island weather in February

Expect daytime maximum temperatures of 32°C in Mafia Island, Tanzania in February and very high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 96 mm of rainfall in the month.

  • 32°C maximum daytime temperature in February in Mafia Island32
    32°C max day temperature
  • 8 hours of sunshine per day
  • 8 days with some rainfall in February in Mafia Island8
    8 days with some rainfall
  • 24°C minimum night-time temperature in February in Mafia Island24
    24°C min night temperature
  • 12 hours of daylight per day in February in Mafia Island12
    12 hours of daylight per day
  • Very high heat & humidity in February in Mafia IslandVH
    Very High heat & humidity
  • 96 mm monthly rainfall in February in Mafia Island96
    96 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in February in Mafia Island11
    11+ (Extreme) UV index
  • 29°C sea temperature in February in Mafia Island29
    29°C sea temperature

Back to months

Mafia Island weather in March

Expect daytime maximum temperatures of 32°C in Mafia Island, Tanzania in March and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 15 days with some rainfall and typically 228 mm of rainfall in the month.

  • 32°C maximum daytime temperature in March in Mafia Island32
    32°C max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in March in Mafia Island15
    15 days with some rainfall
  • 23°C minimum night-time temperature in March in Mafia Island23
    23°C min night temperature
  • 12 hours of daylight per day in March in Mafia Island12
    12 hours of daylight per day
  • Very high heat & humidity in March in Mafia IslandVH
    Very High heat & humidity
  • 228 mm monthly rainfall in March in Mafia Island228
    228 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in March in Mafia Island11
    11+ (Extreme) UV index
  • 29°C sea temperature in March in Mafia Island29
    29°C sea temperature

Back to months

Mafia Island weather in April

Expect daytime maximum temperatures of 31°C in Mafia Island, Tanzania in April and high heat and humidity based on long-term weather averages. There are 6 hours of sunshine per day on average with 17 days with some rainfall and typically 467 mm of rainfall in the month.

  • 31°C maximum daytime temperature in April in Mafia Island31
    31°C max day temperature
  • 6 hours of sunshine per day
  • 17 days with some rainfall in April in Mafia Island17
    17 days with some rainfall
  • 23°C minimum night-time temperature in April in Mafia Island23
    23°C min night temperature
  • 12 hours of daylight per day in April in Mafia Island12
    12 hours of daylight per day
  • High heat & humidity in April in Mafia IslandH
    High heat & humidity
  • 467 mm monthly rainfall in April in Mafia Island467
    467 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in April in Mafia Island11
    11+ (Extreme) UV index
  • 29°C sea temperature in April in Mafia Island29
    29°C sea temperature

Back to months

Mafia Island weather in May

Expect daytime maximum temperatures of 30°C in Mafia Island, Tanzania in May and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 12 days with some rainfall and typically 257 mm of rainfall in the month.

  • 30°C maximum daytime temperature in May in Mafia Island30
    30°C max day temperature
  • 7 hours of sunshine per day
  • 12 days with some rainfall in May in Mafia Island12
    12 days with some rainfall
  • 22°C minimum night-time temperature in May in Mafia Island22
    22°C min night temperature
  • 12 hours of daylight per day in May in Mafia Island12
    12 hours of daylight per day
  • High heat & humidity in May in Mafia IslandH
    High heat & humidity
  • 257 mm monthly rainfall in May in Mafia Island257
    257 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in May in Mafia Island10
    10 (Very High) UV index
  • 28°C sea temperature in May in Mafia Island28
    28°C sea temperature

Back to months

Mafia Island weather in June

Expect daytime maximum temperatures of 30°C in Mafia Island, Tanzania in June based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 86 mm of rainfall in the month.

  • 30°C maximum daytime temperature in June in Mafia Island30
    30°C max day temperature
  • 8 hours of sunshine per day
  • 6 days with some rainfall in June in Mafia Island6
    6 days with some rainfall
  • 20°C minimum night-time temperature in June in Mafia Island20
    20°C min night temperature
  • 12 hours of daylight per day in June in Mafia Island12
    12 hours of daylight per day
  • Moderate heat & humidity in June in Mafia IslandM
    Moderate heat & humidity
  • 86 mm monthly rainfall in June in Mafia Island86
    86 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in June in Mafia Island9
    9 (Very High) UV index
  • 27°C sea temperature in June in Mafia Island27
    27°C sea temperature

Back to months

Mafia Island weather in July

Expect daytime maximum temperatures of 29°C in Mafia Island, Tanzania in July based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 51 mm of rainfall in the month.

  • 29°C maximum daytime temperature in July in Mafia Island29
    29°C max day temperature
  • 8 hours of sunshine per day
  • 6 days with some rainfall in July in Mafia Island6
    6 days with some rainfall
  • 19°C minimum night-time temperature in July in Mafia Island19
    19°C min night temperature
  • 12 hours of daylight per day in July in Mafia Island12
    12 hours of daylight per day
  • Moderate heat & humidity in July in Mafia IslandM
    Moderate heat & humidity
  • 51 mm monthly rainfall in July in Mafia Island51
    51 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in July in Mafia Island9
    9 (Very High) UV index
  • 26°C sea temperature in July in Mafia Island26
    26°C sea temperature

Back to months

Mafia Island weather in August

Expect daytime maximum temperatures of 30°C in Mafia Island, Tanzania in August based on long-term weather averages. There are 8 hours of sunshine per day on average.

  • 30°C maximum daytime temperature in August in Mafia Island30
    30°C max day temperature
  • 8 hours of sunshine per day
  • 5 days with some rainfall in August in Mafia Island5
    5 days with some rainfall
  • 19°C minimum night-time temperature in August in Mafia Island19
    19°C min night temperature
  • 12 hours of daylight per day in August in Mafia Island12
    12 hours of daylight per day
  • Moderate heat & humidity in August in Mafia IslandM
    Moderate heat & humidity
  • 32 mm monthly rainfall in August in Mafia Island32
    32 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in August in Mafia Island11
    11 (Extreme) UV index
  • 25°C sea temperature in August in Mafia Island25
    25°C sea temperature

Back to months

Mafia Island weather in September

Expect daytime maximum temperatures of 30°C in Mafia Island, Tanzania in September and high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average.

  • 30°C maximum daytime temperature in September in Mafia Island30
    30°C max day temperature
  • 9 hours of sunshine per day
  • 4 days with some rainfall in September in Mafia Island4
    4 days with some rainfall
  • 19°C minimum night-time temperature in September in Mafia Island19
    19°C min night temperature
  • 12 hours of daylight per day in September in Mafia Island12
    12 hours of daylight per day
  • High heat & humidity in September in Mafia IslandH
    High heat & humidity
  • 23 mm monthly rainfall in September in Mafia Island23
    23 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Mafia Island11
    11+ (Extreme) UV index
  • 26°C sea temperature in September in Mafia Island26
    26°C sea temperature

Back to months

Mafia Island weather in October

Expect daytime maximum temperatures of 31°C in Mafia Island, Tanzania in October and high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average.

  • 31°C maximum daytime temperature in October in Mafia Island31
    31°C max day temperature
  • 9 hours of sunshine per day
  • 6 days with some rainfall in October in Mafia Island6
    6 days with some rainfall
  • 21°C minimum night-time temperature in October in Mafia Island21
    21°C min night temperature
  • 12 hours of daylight per day in October in Mafia Island12
    12 hours of daylight per day
  • High heat & humidity in October in Mafia IslandH
    High heat & humidity
  • 34 mm monthly rainfall in October in Mafia Island34
    34 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in October in Mafia Island11
    11+ (Extreme) UV index
  • 26°C sea temperature in October in Mafia Island26
    26°C sea temperature

Back to months

Mafia Island weather in November

Expect daytime maximum temperatures of 32°C in Mafia Island, Tanzania in November and high heat and humidity based on long-term weather averages. There are 9 hours of sunshine per day on average with typically 102 mm of rainfall in the month.

  • 32°C maximum daytime temperature in November in Mafia Island32
    32°C max day temperature
  • 9 hours of sunshine per day
  • 8 days with some rainfall in November in Mafia Island8
    8 days with some rainfall
  • 22°C minimum night-time temperature in November in Mafia Island22
    22°C min night temperature
  • 12 hours of daylight per day in November in Mafia Island12
    12 hours of daylight per day
  • High heat & humidity in November in Mafia IslandH
    High heat & humidity
  • 102 mm monthly rainfall in November in Mafia Island102
    102 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in November in Mafia Island11
    11+ (Extreme) UV index
  • 27°C sea temperature in November in Mafia Island27
    27°C sea temperature

Back to months

Mafia Island weather in December

Expect daytime maximum temperatures of 32°C in Mafia Island, Tanzania in December and very high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 13 days with some rainfall and typically 186 mm of rainfall in the month.

  • 32°C maximum daytime temperature in December in Mafia Island32
    32°C max day temperature
  • 8 hours of sunshine per day
  • 13 days with some rainfall in December in Mafia Island13
    13 days with some rainfall
  • 23°C minimum night-time temperature in December in Mafia Island23
    23°C min night temperature
  • 13 hours of daylight per day in December in Mafia Island13
    13 hours of daylight per day
  • Very high heat & humidity in December in Mafia IslandVH
    Very High heat & humidity
  • 186 mm monthly rainfall in December in Mafia Island186
    186 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in December in Mafia Island11
    11+ (Extreme) UV index
  • 28°C sea temperature in December in Mafia Island28
    28°C sea temperature

Back to months

More about Mafia Island

Mafia Island by month

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Recommended for Tanzania

  • Save up to £900 per couple on 2026 tours worldwide
  • Discount varies by destination. T&Cs apply
  • Travel between 1st Jan & 31st Dec 2026 (inclusive)

Expires at 23:59 on Tuesday 30th Sep 2025 · View all Cosmos offers

CosmosTour deal finder

The climate guide for Tanzania (Mafia Island) shows long term monthly weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

Back to top

Compare Mafia Island with the UK

Below the Mafia Island chart shows average maximum daytime temperature for Mafia Island, Tanzania and the UK (London).

Maximum daytime temperature (°C)

Mafia Island, Tanzania
UK (London)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Metric (°C / mm)  |  Imperial (°F / inches)

Compare more Mafia Island weather >>

Back to top

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^