Agana weather by month

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

Temperature in Agana (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
30°C maximum daytime temperature in January in Agana30
30°C maximum daytime temperature in February in Agana30
30°C maximum daytime temperature in March in Agana30
31°C maximum daytime temperature in April in Agana31
31°C maximum daytime temperature in May in Agana31
31°C maximum daytime temperature in June in Agana31
31°C maximum daytime temperature in July in Agana31
31°C maximum daytime temperature in August in Agana31
31°C maximum daytime temperature in September in Agana31
31°C maximum daytime temperature in October in Agana31
31°C maximum daytime temperature in November in Agana31
30°C maximum daytime temperature in December in Agana30
Min temperature (night-time)
24°C minimum night-time temperature in January in Agana24
24°C minimum night-time temperature in February in Agana24
24°C minimum night-time temperature in March in Agana24
24°C minimum night-time temperature in April in Agana24
25°C minimum night-time temperature in May in Agana25
25°C minimum night-time temperature in June in Agana25
25°C minimum night-time temperature in July in Agana25
25°C minimum night-time temperature in August in Agana25
25°C minimum night-time temperature in September in Agana25
25°C minimum night-time temperature in October in Agana25
25°C minimum night-time temperature in November in Agana25
24°C minimum night-time temperature in December in Agana24
Heat & Humidity
High heat & humidity in January in AganaH
High heat & humidity in February in AganaH
High heat & humidity in March in AganaH
High heat & humidity in April in AganaH
Very high heat & humidity in May in AganaVH
Very high heat & humidity in June in AganaVH
Very high heat & humidity in July in AganaVH
Very high heat & humidity in August in AganaVH
Very high heat & humidity in September in AganaVH
Very high heat & humidity in October in AganaVH
Very high heat & humidity in November in AganaVH
High heat & humidity in December in AganaH
Sea temperature
28°C sea temperature in January in Agana28
27°C sea temperature in February in Agana27
27°C sea temperature in March in Agana27
28°C sea temperature in April in Agana28
28°C sea temperature in May in Agana28
29°C sea temperature in June in Agana29
29°C sea temperature in July in Agana29
29°C sea temperature in August in Agana29
29°C sea temperature in September in Agana29
29°C sea temperature in October in Agana29
29°C sea temperature in November in Agana29
28°C sea temperature in December in Agana28

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

Sunshine & UV index in Agana

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
11 hours of daylight per day in January in Agana11
12 hours of daylight per day in February in Agana12
12 hours of daylight per day in March in Agana12
12 hours of daylight per day in April in Agana12
13 hours of daylight per day in May in Agana13
13 hours of daylight per day in June in Agana13
13 hours of daylight per day in July in Agana13
13 hours of daylight per day in August in Agana13
12 hours of daylight per day in September in Agana12
12 hours of daylight per day in October in Agana12
12 hours of daylight per day in November in Agana12
11 hours of daylight per day in December in Agana11
UV Index (Maximum)
UV (maximum) index 10 (Very High) in January in Agana10
UV (maximum) index 11+ (Extreme) in February in Agana11
UV (maximum) index 11+ (Extreme) in March in Agana11
UV (maximum) index 11+ (Extreme) in April in Agana11
UV (maximum) index 11+ (Extreme) in May in Agana11
UV (maximum) index 11+ (Extreme) in June in Agana11
UV (maximum) index 11+ (Extreme) in July in Agana11
UV (maximum) index 11+ (Extreme) in August in Agana11
UV (maximum) index 11+ (Extreme) in September in Agana11
UV (maximum) index 11+ (Extreme) in October in Agana11
UV (maximum) index 10 (Very High) in November in Agana10
UV (maximum) index 9 (Very High) in December in Agana9

Rainfall in Agana

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
23 days with some rainfall in January in Agana23
19 days with some rainfall in February in Agana19
20 days with some rainfall in March in Agana20
19 days with some rainfall in April in Agana19
20 days with some rainfall in May in Agana20
17 days with some rainfall in June in Agana17
19 days with some rainfall in July in Agana19
20 days with some rainfall in August in Agana20
19 days with some rainfall in September in Agana19
22 days with some rainfall in October in Agana22
22 days with some rainfall in November in Agana22
23 days with some rainfall in December in Agana23
Average monthly rainfall (mm)
130 mm monthly rainfall in January in Agana130
111 mm monthly rainfall in February in Agana111
89 mm monthly rainfall in March in Agana89
102 mm monthly rainfall in April in Agana102
142 mm monthly rainfall in May in Agana142
162 mm monthly rainfall in June in Agana162
273 mm monthly rainfall in July in Agana273
363 mm monthly rainfall in August in Agana363
343 mm monthly rainfall in September in Agana343
317 mm monthly rainfall in October in Agana317
228 mm monthly rainfall in November in Agana228
150 mm monthly rainfall in December in Agana150

More about Agana

Agana by month

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

Recommended for Guam

The climate guide for Guam, represented by Agana, (Agana) 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 Agana?

Agana has a hot tropical climate with no dry season.

Agana weather in January

Expect daytime maximum temperatures of 30°C in Agana, Guam in January and high heat and humidity based on long-term weather averages. There are 6 hours of sunshine per day on average with 23 days with some rainfall and typically 130 mm of rainfall in the month.

  • 30°C maximum daytime temperature in January in Agana30
    30°C max day temperature
  • 6 hours of sunshine per day
  • 23 days with some rainfall in January in Agana23
    23 days with some rainfall
  • 24°C minimum night-time temperature in January in Agana24
    24°C min night temperature
  • 11 hours of daylight per day in January in Agana11
    11 hours of daylight per day
  • High heat & humidity in January in AganaH
    High heat & humidity
  • 130 mm monthly rainfall in January in Agana130
    130 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in January in Agana10
    10 (Very High) UV index
  • 28°C sea temperature in January in Agana28
    28°C sea temperature

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Agana weather in February

Expect daytime maximum temperatures of 30°C in Agana, Guam in February and high heat and humidity based on long-term weather averages. There are 6 hours of sunshine per day on average with 19 days with some rainfall and typically 111 mm of rainfall in the month.

  • 30°C maximum daytime temperature in February in Agana30
    30°C max day temperature
  • 6 hours of sunshine per day
  • 19 days with some rainfall in February in Agana19
    19 days with some rainfall
  • 24°C minimum night-time temperature in February in Agana24
    24°C min night temperature
  • 12 hours of daylight per day in February in Agana12
    12 hours of daylight per day
  • High heat & humidity in February in AganaH
    High heat & humidity
  • 111 mm monthly rainfall in February in Agana111
    111 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in February in Agana11
    11+ (Extreme) UV index
  • 27°C sea temperature in February in Agana27
    27°C sea temperature

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Agana weather in March

Expect daytime maximum temperatures of 30°C in Agana, Guam in March and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 20 days with some rainfall and typically 89 mm of rainfall in the month.

  • 30°C maximum daytime temperature in March in Agana30
    30°C max day temperature
  • 7 hours of sunshine per day
  • 20 days with some rainfall in March in Agana20
    20 days with some rainfall
  • 24°C minimum night-time temperature in March in Agana24
    24°C min night temperature
  • 12 hours of daylight per day in March in Agana12
    12 hours of daylight per day
  • High heat & humidity in March in AganaH
    High heat & humidity
  • 89 mm monthly rainfall in March in Agana89
    89 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in March in Agana11
    11+ (Extreme) UV index
  • 27°C sea temperature in March in Agana27
    27°C sea temperature

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Agana weather in April

Expect daytime maximum temperatures of 31°C in Agana, Guam in April and high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 19 days with some rainfall and typically 102 mm of rainfall in the month.

  • 31°C maximum daytime temperature in April in Agana31
    31°C max day temperature
  • 7 hours of sunshine per day
  • 19 days with some rainfall in April in Agana19
    19 days with some rainfall
  • 24°C minimum night-time temperature in April in Agana24
    24°C min night temperature
  • 12 hours of daylight per day in April in Agana12
    12 hours of daylight per day
  • High heat & humidity in April in AganaH
    High heat & humidity
  • 102 mm monthly rainfall in April in Agana102
    102 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in April in Agana11
    11+ (Extreme) UV index
  • 28°C sea temperature in April in Agana28
    28°C sea temperature

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Agana weather in May

Expect daytime maximum temperatures of 31°C in Agana, Guam in May and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 20 days with some rainfall and typically 142 mm of rainfall in the month.

  • 31°C maximum daytime temperature in May in Agana31
    31°C max day temperature
  • 7 hours of sunshine per day
  • 20 days with some rainfall in May in Agana20
    20 days with some rainfall
  • 25°C minimum night-time temperature in May in Agana25
    25°C min night temperature
  • 13 hours of daylight per day in May in Agana13
    13 hours of daylight per day
  • Very high heat & humidity in May in AganaVH
    Very High heat & humidity
  • 142 mm monthly rainfall in May in Agana142
    142 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in May in Agana11
    11+ (Extreme) UV index
  • 28°C sea temperature in May in Agana28
    28°C sea temperature

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Agana weather in June

Expect daytime maximum temperatures of 31°C in Agana, Guam in June and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 17 days with some rainfall and typically 162 mm of rainfall in the month.

  • 31°C maximum daytime temperature in June in Agana31
    31°C max day temperature
  • 7 hours of sunshine per day
  • 17 days with some rainfall in June in Agana17
    17 days with some rainfall
  • 25°C minimum night-time temperature in June in Agana25
    25°C min night temperature
  • 13 hours of daylight per day in June in Agana13
    13 hours of daylight per day
  • Very high heat & humidity in June in AganaVH
    Very High heat & humidity
  • 162 mm monthly rainfall in June in Agana162
    162 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in June in Agana11
    11+ (Extreme) UV index
  • 29°C sea temperature in June in Agana29
    29°C sea temperature

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Agana weather in July

Expect daytime maximum temperatures of 31°C in Agana, Guam in July and very high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 19 days with some rainfall and typically 273 mm of rainfall in the month.

  • 31°C maximum daytime temperature in July in Agana31
    31°C max day temperature
  • 5 hours of sunshine per day
  • 19 days with some rainfall in July in Agana19
    19 days with some rainfall
  • 25°C minimum night-time temperature in July in Agana25
    25°C min night temperature
  • 13 hours of daylight per day in July in Agana13
    13 hours of daylight per day
  • Very high heat & humidity in July in AganaVH
    Very High heat & humidity
  • 273 mm monthly rainfall in July in Agana273
    273 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in July in Agana11
    11+ (Extreme) UV index
  • 29°C sea temperature in July in Agana29
    29°C sea temperature

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Agana weather in August

Expect daytime maximum temperatures of 31°C in Agana, Guam in August and very high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 20 days with some rainfall and typically 363 mm of rainfall in the month.

  • 31°C maximum daytime temperature in August in Agana31
    31°C max day temperature
  • 5 hours of sunshine per day
  • 20 days with some rainfall in August in Agana20
    20 days with some rainfall
  • 25°C minimum night-time temperature in August in Agana25
    25°C min night temperature
  • 13 hours of daylight per day in August in Agana13
    13 hours of daylight per day
  • Very high heat & humidity in August in AganaVH
    Very High heat & humidity
  • 363 mm monthly rainfall in August in Agana363
    363 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in August in Agana11
    11+ (Extreme) UV index
  • 29°C sea temperature in August in Agana29
    29°C sea temperature

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Agana weather in September

Expect daytime maximum temperatures of 31°C in Agana, Guam in September and very high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 19 days with some rainfall and typically 343 mm of rainfall in the month.

  • 31°C maximum daytime temperature in September in Agana31
    31°C max day temperature
  • 5 hours of sunshine per day
  • 19 days with some rainfall in September in Agana19
    19 days with some rainfall
  • 25°C minimum night-time temperature in September in Agana25
    25°C min night temperature
  • 12 hours of daylight per day in September in Agana12
    12 hours of daylight per day
  • Very high heat & humidity in September in AganaVH
    Very High heat & humidity
  • 343 mm monthly rainfall in September in Agana343
    343 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Agana11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Agana29
    29°C sea temperature

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Agana weather in October

Expect daytime maximum temperatures of 31°C in Agana, Guam in October and very high heat and humidity based on long-term weather averages. There are 4 hours of sunshine per day on average with 22 days with some rainfall and typically 317 mm of rainfall in the month.

  • 31°C maximum daytime temperature in October in Agana31
    31°C max day temperature
  • 4 hours of sunshine per day
  • 22 days with some rainfall in October in Agana22
    22 days with some rainfall
  • 25°C minimum night-time temperature in October in Agana25
    25°C min night temperature
  • 12 hours of daylight per day in October in Agana12
    12 hours of daylight per day
  • Very high heat & humidity in October in AganaVH
    Very High heat & humidity
  • 317 mm monthly rainfall in October in Agana317
    317 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in October in Agana11
    11+ (Extreme) UV index
  • 29°C sea temperature in October in Agana29
    29°C sea temperature

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Agana weather in November

Expect daytime maximum temperatures of 31°C in Agana, Guam in November and very high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 22 days with some rainfall and typically 228 mm of rainfall in the month.

  • 31°C maximum daytime temperature in November in Agana31
    31°C max day temperature
  • 5 hours of sunshine per day
  • 22 days with some rainfall in November in Agana22
    22 days with some rainfall
  • 25°C minimum night-time temperature in November in Agana25
    25°C min night temperature
  • 12 hours of daylight per day in November in Agana12
    12 hours of daylight per day
  • Very high heat & humidity in November in AganaVH
    Very High heat & humidity
  • 228 mm monthly rainfall in November in Agana228
    228 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in November in Agana10
    10 (Very High) UV index
  • 29°C sea temperature in November in Agana29
    29°C sea temperature

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Agana weather in December

Expect daytime maximum temperatures of 30°C in Agana, Guam in December and high heat and humidity based on long-term weather averages. There are 5 hours of sunshine per day on average with 23 days with some rainfall and typically 150 mm of rainfall in the month.

  • 30°C maximum daytime temperature in December in Agana30
    30°C max day temperature
  • 5 hours of sunshine per day
  • 23 days with some rainfall in December in Agana23
    23 days with some rainfall
  • 24°C minimum night-time temperature in December in Agana24
    24°C min night temperature
  • 11 hours of daylight per day in December in Agana11
    11 hours of daylight per day
  • High heat & humidity in December in AganaH
    High heat & humidity
  • 150 mm monthly rainfall in December in Agana150
    150 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in December in Agana9
    9 (Very High) UV index
  • 28°C sea temperature in December in Agana28
    28°C sea temperature

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More about Agana

Agana by month

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

Recommended for Guam

The climate guide for Guam, represented by Agana, (Agana) 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.

Tropical storm risk: Agana, Guam typhoon season

% of month affected by tropical storms
1.3%
0
0
1.4%
1.8%
1.7%
4.7%
6.9%
7.6%
7.9%
4.5%
2%
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Compare Agana weather with the UK

The weather chart below compares the average monthly maximum daytime temperature for Agana, Guam and the UK (London).

Maximum daytime temperature (°C)

Agana, Guam
UK (London)
30
7
30
7
30
10
31
13
31
17
31
20
31
22
31
22
31
19
31
15
31
10
30
8
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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

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