Symi weather by month

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

Temperature in Symi (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
14°C maximum daytime temperature in January in Symi14
14°C maximum daytime temperature in February in Symi14
17°C maximum daytime temperature in March in Symi17
20°C maximum daytime temperature in April in Symi20
25°C maximum daytime temperature in May in Symi25
30°C maximum daytime temperature in June in Symi30
32°C maximum daytime temperature in July in Symi32
32°C maximum daytime temperature in August in Symi32
29°C maximum daytime temperature in September in Symi29
24°C maximum daytime temperature in October in Symi24
19°C maximum daytime temperature in November in Symi19
16°C maximum daytime temperature in December in Symi16
Min temperature (night-time)
7°C minimum night-time temperature in January in Symi7
7°C minimum night-time temperature in February in Symi7
8°C minimum night-time temperature in March in Symi8
11°C minimum night-time temperature in April in Symi11
14°C minimum night-time temperature in May in Symi14
19°C minimum night-time temperature in June in Symi19
21°C minimum night-time temperature in July in Symi21
21°C minimum night-time temperature in August in Symi21
19°C minimum night-time temperature in September in Symi19
15°C minimum night-time temperature in October in Symi15
11°C minimum night-time temperature in November in Symi11
8°C minimum night-time temperature in December in Symi8
Heat & Humidity
No heat & humidity in January in Symi0
No heat & humidity in February in Symi0
No heat & humidity in March in Symi0
No heat & humidity in April in Symi0
No heat & humidity in May in Symi0
Moderate heat & humidity in June in SymiM
High heat & humidity in July in SymiH
High heat & humidity in August in SymiH
Moderate heat & humidity in September in SymiM
No heat & humidity in October in Symi0
No heat & humidity in November in Symi0
No heat & humidity in December in Symi0
Sea temperature
17°C sea temperature in January in Symi17
17°C sea temperature in February in Symi17
16°C sea temperature in March in Symi16
17°C sea temperature in April in Symi17
19°C sea temperature in May in Symi19
22°C sea temperature in June in Symi22
24°C sea temperature in July in Symi24
26°C sea temperature in August in Symi26
25°C sea temperature in September in Symi25
23°C sea temperature in October in Symi23
21°C sea temperature in November in Symi21
19°C sea temperature in December in Symi19

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

Sunshine & UV index in Symi

  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 Symi10
11 hours of daylight per day in February in Symi11
12 hours of daylight per day in March in Symi12
13 hours of daylight per day in April in Symi13
14 hours of daylight per day in May in Symi14
15 hours of daylight per day in June in Symi15
14 hours of daylight per day in July in Symi14
14 hours of daylight per day in August in Symi14
12 hours of daylight per day in September in Symi12
11 hours of daylight per day in October in Symi11
10 hours of daylight per day in November in Symi10
10 hours of daylight per day in December in Symi10
UV Index (Maximum)
UV (maximum) index 2 (Low) in January in Symi2
UV (maximum) index 3 (Moderate) in February in Symi3
UV (maximum) index 5 (Moderate) in March in Symi5
UV (maximum) index 6 (High) in April in Symi6
UV (maximum) index 8 (Very High) in May in Symi8
UV (maximum) index 10 (Very High) in June in Symi10
UV (maximum) index 10 (Very High) in July in Symi10
UV (maximum) index 9 (Very High) in August in Symi9
UV (maximum) index 7 (High) in September in Symi7
UV (maximum) index 5 (Moderate) in October in Symi5
UV (maximum) index 3 (Moderate) in November in Symi3
UV (maximum) index 2 (Low) in December in Symi2

Rainfall in Symi

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
14 days with some rainfall in January in Symi14
12 days with some rainfall in February in Symi12
9 days with some rainfall in March in Symi9
7 days with some rainfall in April in Symi7
4 days with some rainfall in May in Symi4
3 days with some rainfall in June in Symi3
5 days with some rainfall in July in Symi5
6 days with some rainfall in August in Symi6
4 days with some rainfall in September in Symi4
6 days with some rainfall in October in Symi6
9 days with some rainfall in November in Symi9
14 days with some rainfall in December in Symi14
Average monthly rainfall (mm)
185 mm monthly rainfall in January in Symi185
138 mm monthly rainfall in February in Symi138
88 mm monthly rainfall in March in Symi88
37 mm monthly rainfall in April in Symi37
23 mm monthly rainfall in May in Symi23
12 mm monthly rainfall in June in Symi12
3 mm monthly rainfall in July in Symi3
5 mm monthly rainfall in August in Symi5
14 mm monthly rainfall in September in Symi14
69 mm monthly rainfall in October in Symi69
110 mm monthly rainfall in November in Symi110
190 mm monthly rainfall in December in Symi190

More about Symi

Symi by month

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

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The climate guide for Greece (Symi) 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 Symi?

Symi has a temperate climate with hot dry summers.

Symi weather in January

Expect daytime maximum temperatures of 14°C in Symi, Greece in January based on long-term weather averages. There are 5 hours of sunshine per day on average with 14 days with some rainfall and typically 185 mm of rainfall in the month.

  • 14°C maximum daytime temperature in January in Symi14
    14°C max day temperature
  • 5 hours of sunshine per day
  • 14 days with some rainfall in January in Symi14
    14 days with some rainfall
  • 7°C minimum night-time temperature in January in Symi7
    7°C min night temperature
  • 10 hours of daylight per day in January in Symi10
    10 hours of daylight per day
  • No heat & humidity in January in Symi0
    No heat & humidity
  • 185 mm monthly rainfall in January in Symi185
    185 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in January in Symi2
    2 (Low) UV index
  • 17°C sea temperature in January in Symi17
    17°C sea temperature

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Symi weather in February

Expect daytime maximum temperatures of 14°C in Symi, Greece in February based on long-term weather averages. There are 6 hours of sunshine per day on average with 12 days with some rainfall and typically 138 mm of rainfall in the month.

  • 14°C maximum daytime temperature in February in Symi14
    14°C max day temperature
  • 6 hours of sunshine per day
  • 12 days with some rainfall in February in Symi12
    12 days with some rainfall
  • 7°C minimum night-time temperature in February in Symi7
    7°C min night temperature
  • 11 hours of daylight per day in February in Symi11
    11 hours of daylight per day
  • No heat & humidity in February in Symi0
    No heat & humidity
  • 138 mm monthly rainfall in February in Symi138
    138 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in February in Symi3
    3 (Moderate) UV index
  • 17°C sea temperature in February in Symi17
    17°C sea temperature

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Symi weather in March

Expect daytime maximum temperatures of 17°C in Symi, Greece in March based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 88 mm of rainfall in the month.

  • 17°C maximum daytime temperature in March in Symi17
    17°C max day temperature
  • 7 hours of sunshine per day
  • 9 days with some rainfall in March in Symi9
    9 days with some rainfall
  • 8°C minimum night-time temperature in March in Symi8
    8°C min night temperature
  • 12 hours of daylight per day in March in Symi12
    12 hours of daylight per day
  • No heat & humidity in March in Symi0
    No heat & humidity
  • 88 mm monthly rainfall in March in Symi88
    88 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in March in Symi5
    5 (Moderate) UV index
  • 16°C sea temperature in March in Symi16
    16°C sea temperature

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Symi weather in April

Expect daytime maximum temperatures of 20°C in Symi, Greece in April based on long-term weather averages. There are 9 hours of sunshine per day on average.

  • 20°C maximum daytime temperature in April in Symi20
    20°C max day temperature
  • 9 hours of sunshine per day
  • 7 days with some rainfall in April in Symi7
    7 days with some rainfall
  • 11°C minimum night-time temperature in April in Symi11
    11°C min night temperature
  • 13 hours of daylight per day in April in Symi13
    13 hours of daylight per day
  • No heat & humidity in April in Symi0
    No heat & humidity
  • 37 mm monthly rainfall in April in Symi37
    37 mm of monthly rainfall
  • UV (maximum) index 6 (High) in April in Symi6
    6 (High) UV index
  • 17°C sea temperature in April in Symi17
    17°C sea temperature

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Symi weather in May

Expect daytime maximum temperatures of 25°C in Symi, Greece in May based on long-term weather averages. There are 11 hours of sunshine per day on average.

  • 25°C maximum daytime temperature in May in Symi25
    25°C max day temperature
  • 11 hours of sunshine per day
  • 4 days with some rainfall in May in Symi4
    4 days with some rainfall
  • 14°C minimum night-time temperature in May in Symi14
    14°C min night temperature
  • 14 hours of daylight per day in May in Symi14
    14 hours of daylight per day
  • No heat & humidity in May in Symi0
    No heat & humidity
  • 23 mm monthly rainfall in May in Symi23
    23 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in Symi8
    8 (Very High) UV index
  • 19°C sea temperature in May in Symi19
    19°C sea temperature

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Symi weather in June

Expect daytime maximum temperatures of 30°C in Symi, Greece in June based on long-term weather averages. There are 13 hours of sunshine per day on average.

  • 30°C maximum daytime temperature in June in Symi30
    30°C max day temperature
  • 13 hours of sunshine per day
  • 3 days with some rainfall in June in Symi3
    3 days with some rainfall
  • 19°C minimum night-time temperature in June in Symi19
    19°C min night temperature
  • 15 hours of daylight per day in June in Symi15
    15 hours of daylight per day
  • Moderate heat & humidity in June in SymiM
    Moderate heat & humidity
  • 12 mm monthly rainfall in June in Symi12
    12 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in June in Symi10
    10 (Very High) UV index
  • 22°C sea temperature in June in Symi22
    22°C sea temperature

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Symi weather in July

Expect daytime maximum temperatures of 32°C in Symi, Greece in July and high heat and humidity based on long-term weather averages. There are 14 hours of sunshine per day on average.

  • 32°C maximum daytime temperature in July in Symi32
    32°C max day temperature
  • 14 hours of sunshine per day
  • 5 days with some rainfall in July in Symi5
    5 days with some rainfall
  • 21°C minimum night-time temperature in July in Symi21
    21°C min night temperature
  • 14 hours of daylight per day in July in Symi14
    14 hours of daylight per day
  • High heat & humidity in July in SymiH
    High heat & humidity
  • 3 mm monthly rainfall in July in Symi3
    3 mm of monthly rainfall
  • UV (maximum) index 10 (Very High) in July in Symi10
    10 (Very High) UV index
  • 24°C sea temperature in July in Symi24
    24°C sea temperature

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Symi weather in August

Expect daytime maximum temperatures of 32°C in Symi, Greece in August and high heat and humidity based on long-term weather averages. There are 13 hours of sunshine per day on average.

  • 32°C maximum daytime temperature in August in Symi32
    32°C max day temperature
  • 13 hours of sunshine per day
  • 6 days with some rainfall in August in Symi6
    6 days with some rainfall
  • 21°C minimum night-time temperature in August in Symi21
    21°C min night temperature
  • 14 hours of daylight per day in August in Symi14
    14 hours of daylight per day
  • High heat & humidity in August in SymiH
    High heat & humidity
  • 5 mm monthly rainfall in August in Symi5
    5 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in August in Symi9
    9 (Very High) UV index
  • 26°C sea temperature in August in Symi26
    26°C sea temperature

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Symi weather in September

Expect daytime maximum temperatures of 29°C in Symi, Greece in September based on long-term weather averages. There are 11 hours of sunshine per day on average.

  • 29°C maximum daytime temperature in September in Symi29
    29°C max day temperature
  • 11 hours of sunshine per day
  • 4 days with some rainfall in September in Symi4
    4 days with some rainfall
  • 19°C minimum night-time temperature in September in Symi19
    19°C min night temperature
  • 12 hours of daylight per day in September in Symi12
    12 hours of daylight per day
  • Moderate heat & humidity in September in SymiM
    Moderate heat & humidity
  • 14 mm monthly rainfall in September in Symi14
    14 mm of monthly rainfall
  • UV (maximum) index 7 (High) in September in Symi7
    7 (High) UV index
  • 25°C sea temperature in September in Symi25
    25°C sea temperature

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Symi weather in October

Expect daytime maximum temperatures of 24°C in Symi, Greece in October based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 69 mm of rainfall in the month.

  • 24°C maximum daytime temperature in October in Symi24
    24°C max day temperature
  • 8 hours of sunshine per day
  • 6 days with some rainfall in October in Symi6
    6 days with some rainfall
  • 15°C minimum night-time temperature in October in Symi15
    15°C min night temperature
  • 11 hours of daylight per day in October in Symi11
    11 hours of daylight per day
  • No heat & humidity in October in Symi0
    No heat & humidity
  • 69 mm monthly rainfall in October in Symi69
    69 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in October in Symi5
    5 (Moderate) UV index
  • 23°C sea temperature in October in Symi23
    23°C sea temperature

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Symi weather in November

Expect daytime maximum temperatures of 19°C in Symi, Greece in November based on long-term weather averages. There are 6 hours of sunshine per day on average with typically 110 mm of rainfall in the month.

  • 19°C maximum daytime temperature in November in Symi19
    19°C max day temperature
  • 6 hours of sunshine per day
  • 9 days with some rainfall in November in Symi9
    9 days with some rainfall
  • 11°C minimum night-time temperature in November in Symi11
    11°C min night temperature
  • 10 hours of daylight per day in November in Symi10
    10 hours of daylight per day
  • No heat & humidity in November in Symi0
    No heat & humidity
  • 110 mm monthly rainfall in November in Symi110
    110 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in November in Symi3
    3 (Moderate) UV index
  • 21°C sea temperature in November in Symi21
    21°C sea temperature

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Symi weather in December

Expect daytime maximum temperatures of 16°C in Symi, Greece in December based on long-term weather averages. There are 5 hours of sunshine per day on average with 14 days with some rainfall and typically 190 mm of rainfall in the month.

  • 16°C maximum daytime temperature in December in Symi16
    16°C max day temperature
  • 5 hours of sunshine per day
  • 14 days with some rainfall in December in Symi14
    14 days with some rainfall
  • 8°C minimum night-time temperature in December in Symi8
    8°C min night temperature
  • 10 hours of daylight per day in December in Symi10
    10 hours of daylight per day
  • No heat & humidity in December in Symi0
    No heat & humidity
  • 190 mm monthly rainfall in December in Symi190
    190 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in December in Symi2
    2 (Low) UV index
  • 19°C sea temperature in December in Symi19
    19°C sea temperature

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More about Symi

Symi 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

TUITUI deal finder

The climate guide for Greece (Symi) 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 Symi weather with the UK

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

Maximum daytime temperature (°C)

Symi, 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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