Ios weather by month

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

Temperature in Ios (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
13°C maximum daytime temperature in January in Ios13
13°C maximum daytime temperature in February in Ios13
15°C maximum daytime temperature in March in Ios15
18°C maximum daytime temperature in April in Ios18
22°C maximum daytime temperature in May in Ios22
26°C maximum daytime temperature in June in Ios26
27°C maximum daytime temperature in July in Ios27
26°C maximum daytime temperature in August in Ios26
24°C maximum daytime temperature in September in Ios24
21°C maximum daytime temperature in October in Ios21
18°C maximum daytime temperature in November in Ios18
15°C maximum daytime temperature in December in Ios15
Min temperature (night-time)
8°C minimum night-time temperature in January in Ios8
8°C minimum night-time temperature in February in Ios8
9°C minimum night-time temperature in March in Ios9
12°C minimum night-time temperature in April in Ios12
15°C minimum night-time temperature in May in Ios15
19°C minimum night-time temperature in June in Ios19
21°C minimum night-time temperature in July in Ios21
21°C minimum night-time temperature in August in Ios21
19°C minimum night-time temperature in September in Ios19
16°C minimum night-time temperature in October in Ios16
13°C minimum night-time temperature in November in Ios13
10°C minimum night-time temperature in December in Ios10
Heat & Humidity
No heat & humidity in January in Ios0
No heat & humidity in February in Ios0
No heat & humidity in March in Ios0
No heat & humidity in April in Ios0
No heat & humidity in May in Ios0
Low heat & humidity in June in IosL
Moderate heat & humidity in July in IosM
Moderate heat & humidity in August in IosM
Low heat & humidity in September in IosL
No heat & humidity in October in Ios0
No heat & humidity in November in Ios0
No heat & humidity in December in Ios0
Sea temperature
16°C sea temperature in January in Ios16
16°C sea temperature in February in Ios16
16°C sea temperature in March in Ios16
16°C sea temperature in April in Ios16
18°C sea temperature in May in Ios18
22°C sea temperature in June in Ios22
23°C sea temperature in July in Ios23
24°C sea temperature in August in Ios24
23°C sea temperature in September in Ios23
22°C sea temperature in October in Ios22
19°C sea temperature in November in Ios19
17°C sea temperature in December in Ios17

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

Sunshine & UV index in Ios

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daily hours of sunshine
Daily hours of daylight
10 hours of daylight per day in January in Ios10
11 hours of daylight per day in February in Ios11
12 hours of daylight per day in March in Ios12
13 hours of daylight per day in April in Ios13
14 hours of daylight per day in May in Ios14
15 hours of daylight per day in June in Ios15
14 hours of daylight per day in July in Ios14
14 hours of daylight per day in August in Ios14
12 hours of daylight per day in September in Ios12
11 hours of daylight per day in October in Ios11
10 hours of daylight per day in November in Ios10
10 hours of daylight per day in December in Ios10
UV Index (Maximum)
UV (maximum) index 2 (Low) in January in Ios2
UV (maximum) index 3 (Moderate) in February in Ios3
UV (maximum) index 5 (Moderate) in March in Ios5
UV (maximum) index 6 (High) in April in Ios6
UV (maximum) index 8 (Very High) in May in Ios8
UV (maximum) index 10 (Very High) in June in Ios10
UV (maximum) index 10 (Very High) in July in Ios10
UV (maximum) index 9 (Very High) in August in Ios9
UV (maximum) index 7 (High) in September in Ios7
UV (maximum) index 5 (Moderate) in October in Ios5
UV (maximum) index 3 (Moderate) in November in Ios3
UV (maximum) index 2 (Low) in December in Ios2

Rainfall in Ios

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
11 days with some rainfall in January in Ios11
10 days with some rainfall in February in Ios10
8 days with some rainfall in March in Ios8
7 days with some rainfall in April in Ios7
4 days with some rainfall in May in Ios4
2 days with some rainfall in June in Ios2
1 day with some rainfall in July in Ios1
0 days with some rainfall in August in Ios0
2 days with some rainfall in September in Ios2
5 days with some rainfall in October in Ios5
8 days with some rainfall in November in Ios8
12 days with some rainfall in December in Ios12
Average monthly rainfall (mm)
99 mm monthly rainfall in January in Ios99
71 mm monthly rainfall in February in Ios71
60 mm monthly rainfall in March in Ios60
27 mm monthly rainfall in April in Ios27
15 mm monthly rainfall in May in Ios15
5 mm monthly rainfall in June in Ios5
2 mm monthly rainfall in July in Ios2
2 mm monthly rainfall in August in Ios2
12 mm monthly rainfall in September in Ios12
50 mm monthly rainfall in October in Ios50
64 mm monthly rainfall in November in Ios64
96 mm monthly rainfall in December in Ios96

More about Ios

Ios by month

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

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The climate guide for Greece (Ios) 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 Ios?

Ios has a hot semi arid climate.

Ios weather in January

Expect daytime maximum temperatures of 13°C in Ios, Greece in January based on long-term weather averages. There are 4 hours of sunshine per day on average with 11 days with some rainfall and typically 99 mm of rainfall in the month.

  • 13°C maximum daytime temperature in January in Ios13
    13°C max day temperature
  • 4 hours of sunshine per day
  • 11 days with some rainfall in January in Ios11
    11 days with some rainfall
  • 8°C minimum night-time temperature in January in Ios8
    8°C min night temperature
  • 10 hours of daylight per day in January in Ios10
    10 hours of daylight per day
  • No heat & humidity in January in Ios0
    No heat & humidity
  • 99 mm monthly rainfall in January in Ios99
    99 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in January in Ios2
    2 (Low) UV index
  • 16°C sea temperature in January in Ios16
    16°C sea temperature

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Ios weather in February

Expect daytime maximum temperatures of 13°C in Ios, Greece in February based on long-term weather averages. There are 5 hours of sunshine per day on average with 10 days with some rainfall and typically 71 mm of rainfall in the month.

  • 13°C maximum daytime temperature in February in Ios13
    13°C max day temperature
  • 5 hours of sunshine per day
  • 10 days with some rainfall in February in Ios10
    10 days with some rainfall
  • 8°C minimum night-time temperature in February in Ios8
    8°C min night temperature
  • 11 hours of daylight per day in February in Ios11
    11 hours of daylight per day
  • No heat & humidity in February in Ios0
    No heat & humidity
  • 71 mm monthly rainfall in February in Ios71
    71 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in February in Ios3
    3 (Moderate) UV index
  • 16°C sea temperature in February in Ios16
    16°C sea temperature

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Ios weather in March

Expect daytime maximum temperatures of 15°C in Ios, Greece in March based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 60 mm of rainfall in the month.

  • 15°C maximum daytime temperature in March in Ios15
    15°C max day temperature
  • 7 hours of sunshine per day
  • 8 days with some rainfall in March in Ios8
    8 days with some rainfall
  • 9°C minimum night-time temperature in March in Ios9
    9°C min night temperature
  • 12 hours of daylight per day in March in Ios12
    12 hours of daylight per day
  • No heat & humidity in March in Ios0
    No heat & humidity
  • 60 mm monthly rainfall in March in Ios60
    60 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in March in Ios5
    5 (Moderate) UV index
  • 16°C sea temperature in March in Ios16
    16°C sea temperature

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Ios weather in April

Expect daytime maximum temperatures of 18°C in Ios, Greece in April based on long-term weather averages. There are 8 hours of sunshine per day on average.

  • 18°C maximum daytime temperature in April in Ios18
    18°C max day temperature
  • 8 hours of sunshine per day
  • 7 days with some rainfall in April in Ios7
    7 days with some rainfall
  • 12°C minimum night-time temperature in April in Ios12
    12°C min night temperature
  • 13 hours of daylight per day in April in Ios13
    13 hours of daylight per day
  • No heat & humidity in April in Ios0
    No heat & humidity
  • 27 mm monthly rainfall in April in Ios27
    27 mm of monthly rainfall
  • UV (maximum) index 6 (High) in April in Ios6
    6 (High) UV index
  • 16°C sea temperature in April in Ios16
    16°C sea temperature

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Ios weather in May

Expect daytime maximum temperatures of 22°C in Ios, Greece in May based on long-term weather averages. There are 10 hours of sunshine per day on average.

  • 22°C maximum daytime temperature in May in Ios22
    22°C max day temperature
  • 10 hours of sunshine per day
  • 4 days with some rainfall in May in Ios4
    4 days with some rainfall
  • 15°C minimum night-time temperature in May in Ios15
    15°C min night temperature
  • 14 hours of daylight per day in May in Ios14
    14 hours of daylight per day
  • No heat & humidity in May in Ios0
    No heat & humidity
  • 15 mm monthly rainfall in May in Ios15
    15 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in Ios8
    8 (Very High) UV index
  • 18°C sea temperature in May in Ios18
    18°C sea temperature

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Ios weather in June

Expect daytime maximum temperatures of 26°C in Ios, Greece in June based on long-term weather averages. There are 13 hours of sunshine per day on average.

  • 26°C maximum daytime temperature in June in Ios26
    26°C max day temperature
  • 13 hours of sunshine per day
  • 2 days with some rainfall in June in Ios2
    2 days with some rainfall
  • 19°C minimum night-time temperature in June in Ios19
    19°C min night temperature
  • 15 hours of daylight per day in June in Ios15
    15 hours of daylight per day
  • Low heat & humidity in June in IosL
    Low heat & humidity
  • 5 mm monthly rainfall in June in Ios5
    5 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in June in Ios10
    10 (Very High) UV index
  • 22°C sea temperature in June in Ios22
    22°C sea temperature

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Ios weather in July

Expect daytime maximum temperatures of 27°C in Ios, Greece in July based on long-term weather averages. There are 14 hours of sunshine per day on average.

  • 27°C maximum daytime temperature in July in Ios27
    27°C max day temperature
  • 14 hours of sunshine per day
  • 1 day with some rainfall in July in Ios1
    1 day with some rainfall
  • 21°C minimum night-time temperature in July in Ios21
    21°C min night temperature
  • 14 hours of daylight per day in July in Ios14
    14 hours of daylight per day
  • Moderate heat & humidity in July in IosM
    Moderate heat & humidity
  • 2 mm monthly rainfall in July in Ios2
    2 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in July in Ios10
    10 (Very High) UV index
  • 23°C sea temperature in July in Ios23
    23°C sea temperature

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Ios weather in August

Expect daytime maximum temperatures of 26°C in Ios, Greece in August based on long-term weather averages. There are 13 hours of sunshine per day on average.

  • 26°C maximum daytime temperature in August in Ios26
    26°C max day temperature
  • 13 hours of sunshine per day
  • 0 days with some rainfall in August in Ios0
    0 days with some rainfall
  • 21°C minimum night-time temperature in August in Ios21
    21°C min night temperature
  • 14 hours of daylight per day in August in Ios14
    14 hours of daylight per day
  • Moderate heat & humidity in August in IosM
    Moderate heat & humidity
  • 2 mm monthly rainfall in August in Ios2
    2 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in August in Ios9
    9 (Very High) UV index
  • 24°C sea temperature in August in Ios24
    24°C sea temperature

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Ios weather in September

Expect daytime maximum temperatures of 24°C in Ios, Greece in September based on long-term weather averages. There are 11 hours of sunshine per day on average.

  • 24°C maximum daytime temperature in September in Ios24
    24°C max day temperature
  • 11 hours of sunshine per day
  • 2 days with some rainfall in September in Ios2
    2 days with some rainfall
  • 19°C minimum night-time temperature in September in Ios19
    19°C min night temperature
  • 12 hours of daylight per day in September in Ios12
    12 hours of daylight per day
  • Low heat & humidity in September in IosL
    Low heat & humidity
  • 12 mm monthly rainfall in September in Ios12
    12 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in Ios7
    7 (High) UV index
  • 23°C sea temperature in September in Ios23
    23°C sea temperature

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Ios weather in October

Expect daytime maximum temperatures of 21°C in Ios, Greece in October based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 50 mm of rainfall in the month.

  • 21°C maximum daytime temperature in October in Ios21
    21°C max day temperature
  • 7 hours of sunshine per day
  • 5 days with some rainfall in October in Ios5
    5 days with some rainfall
  • 16°C minimum night-time temperature in October in Ios16
    16°C min night temperature
  • 11 hours of daylight per day in October in Ios11
    11 hours of daylight per day
  • No heat & humidity in October in Ios0
    No heat & humidity
  • 50 mm monthly rainfall in October in Ios50
    50 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in October in Ios5
    5 (Moderate) UV index
  • 22°C sea temperature in October in Ios22
    22°C sea temperature

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Ios weather in November

Expect daytime maximum temperatures of 18°C in Ios, Greece in November based on long-term weather averages. There are 6 hours of sunshine per day on average with typically 64 mm of rainfall in the month.

  • 18°C maximum daytime temperature in November in Ios18
    18°C max day temperature
  • 6 hours of sunshine per day
  • 8 days with some rainfall in November in Ios8
    8 days with some rainfall
  • 13°C minimum night-time temperature in November in Ios13
    13°C min night temperature
  • 10 hours of daylight per day in November in Ios10
    10 hours of daylight per day
  • No heat & humidity in November in Ios0
    No heat & humidity
  • 64 mm monthly rainfall in November in Ios64
    64 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in November in Ios3
    3 (Moderate) UV index
  • 19°C sea temperature in November in Ios19
    19°C sea temperature

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Ios weather in December

Expect daytime maximum temperatures of 15°C in Ios, Greece in December based on long-term weather averages. There are 4 hours of sunshine per day on average with 12 days with some rainfall and typically 96 mm of rainfall in the month.

  • 15°C maximum daytime temperature in December in Ios15
    15°C max day temperature
  • 4 hours of sunshine per day
  • 12 days with some rainfall in December in Ios12
    12 days with some rainfall
  • 10°C minimum night-time temperature in December in Ios10
    10°C min night temperature
  • 10 hours of daylight per day in December in Ios10
    10 hours of daylight per day
  • No heat & humidity in December in Ios0
    No heat & humidity
  • 96 mm monthly rainfall in December in Ios96
    96 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in December in Ios2
    2 (Low) UV index
  • 17°C sea temperature in December in Ios17
    17°C sea temperature

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More about Ios

Ios by month

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

Recommended for Greece

  • Explore latest special offers & online deals from TUI
  • Free child places & £0 deposits with direct debit available
  • Book summer & winter sun holidays in 2026/2027

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The climate guide for Greece (Ios) 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.

Compare Ios weather with the UK

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

Maximum daytime temperature (°C)

Ios, Greece
UK (London)
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

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

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