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 (°F)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
57°F maximum daytime temperature in January in Symi57
57°F maximum daytime temperature in February in Symi57
63°F maximum daytime temperature in March in Symi63
68°F maximum daytime temperature in April in Symi68
77°F maximum daytime temperature in May in Symi77
86°F maximum daytime temperature in June in Symi86
90°F maximum daytime temperature in July in Symi90
90°F maximum daytime temperature in August in Symi90
84°F maximum daytime temperature in September in Symi84
75°F maximum daytime temperature in October in Symi75
66°F maximum daytime temperature in November in Symi66
61°F maximum daytime temperature in December in Symi61
Min temperature (night-time)
45°F minimum night-time temperature in January in Symi45
45°F minimum night-time temperature in February in Symi45
46°F minimum night-time temperature in March in Symi46
52°F minimum night-time temperature in April in Symi52
57°F minimum night-time temperature in May in Symi57
66°F minimum night-time temperature in June in Symi66
70°F minimum night-time temperature in July in Symi70
70°F minimum night-time temperature in August in Symi70
66°F minimum night-time temperature in September in Symi66
59°F minimum night-time temperature in October in Symi59
52°F minimum night-time temperature in November in Symi52
46°F minimum night-time temperature in December in Symi46
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
63°F sea temperature in January in Symi63
63°F sea temperature in February in Symi63
61°F sea temperature in March in Symi61
63°F sea temperature in April in Symi63
66°F sea temperature in May in Symi66
72°F sea temperature in June in Symi72
75°F sea temperature in July in Symi75
79°F sea temperature in August in Symi79
77°F sea temperature in September in Symi77
73°F sea temperature in October in Symi73
70°F sea temperature in November in Symi70
66°F sea temperature in December in Symi66

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 (inches)
7.3 inches monthly rainfall in January in Symi7.3
5.4 inches monthly rainfall in February in Symi5.4
3.5 inches monthly rainfall in March in Symi3.5
1.5 inches monthly rainfall in April in Symi1.5
0.9 inches monthly rainfall in May in Symi0.9
0.5 inches monthly rainfall in June in Symi0.5
0.1 inches monthly rainfall in July in Symi0.1
0.2 inches monthly rainfall in August in Symi0.2
0.6 inches monthly rainfall in September in Symi0.6
2.7 inches monthly rainfall in October in Symi2.7
4.3 inches monthly rainfall in November in Symi4.3
7.5 inches monthly rainfall in December in Symi7.5

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 57°F 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 7.3 inches of rainfall in the month.

  • 57°F maximum daytime temperature in January in Symi57
    57°F max day temperature
  • 5 hours of sunshine per day
  • 14 days with some rainfall in January in Symi14
    14 days with some rainfall
  • 45°F minimum night-time temperature in January in Symi45
    45°F 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
  • 7.3 inches monthly rainfall in January in Symi7.3
    7.3 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in January in Symi2
    2 (Low) UV index
  • 63°F sea temperature in January in Symi63
    63°F sea temperature

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Symi weather in February

Expect daytime maximum temperatures of 57°F 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 5.4 inches of rainfall in the month.

  • 57°F maximum daytime temperature in February in Symi57
    57°F max day temperature
  • 6 hours of sunshine per day
  • 12 days with some rainfall in February in Symi12
    12 days with some rainfall
  • 45°F minimum night-time temperature in February in Symi45
    45°F 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
  • 5.4 inches monthly rainfall in February in Symi5.4
    5.4 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in February in Symi3
    3 (Moderate) UV index
  • 63°F sea temperature in February in Symi63
    63°F sea temperature

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Symi weather in March

Expect daytime maximum temperatures of 63°F in Symi, Greece in March based on long-term weather averages. There are 7 hours of sunshine per day on average with typically 3.5 inches of rainfall in the month.

  • 63°F maximum daytime temperature in March in Symi63
    63°F max day temperature
  • 7 hours of sunshine per day
  • 9 days with some rainfall in March in Symi9
    9 days with some rainfall
  • 46°F minimum night-time temperature in March in Symi46
    46°F 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
  • 3.5 inches monthly rainfall in March in Symi3.5
    3.5 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in March in Symi5
    5 (Moderate) UV index
  • 61°F sea temperature in March in Symi61
    61°F sea temperature

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Symi weather in April

Expect daytime maximum temperatures of 68°F in Symi, Greece in April based on long-term weather averages. There are 9 hours of sunshine per day on average.

  • 68°F maximum daytime temperature in April in Symi68
    68°F max day temperature
  • 9 hours of sunshine per day
  • 7 days with some rainfall in April in Symi7
    7 days with some rainfall
  • 52°F minimum night-time temperature in April in Symi52
    52°F 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
  • 1.5 inches monthly rainfall in April in Symi1.5
    1.5 inches of monthly rainfall
  • UV (maximum) index 6 (High) in April in Symi6
    6 (High) UV index
  • 63°F sea temperature in April in Symi63
    63°F sea temperature

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Symi weather in May

Expect daytime maximum temperatures of 77°F in Symi, Greece in May based on long-term weather averages. There are 11 hours of sunshine per day on average.

  • 77°F maximum daytime temperature in May in Symi77
    77°F max day temperature
  • 11 hours of sunshine per day
  • 4 days with some rainfall in May in Symi4
    4 days with some rainfall
  • 57°F minimum night-time temperature in May in Symi57
    57°F 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
  • 0.9 inches monthly rainfall in May in Symi0.9
    0.9 inches of monthly rainfall
  • UV (maximum) index 8 (Very High) in May in Symi8
    8 (Very High) UV index
  • 66°F sea temperature in May in Symi66
    66°F sea temperature

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Symi weather in June

Expect daytime maximum temperatures of 86°F in Symi, Greece in June based on long-term weather averages. There are 13 hours of sunshine per day on average.

  • 86°F maximum daytime temperature in June in Symi86
    86°F max day temperature
  • 13 hours of sunshine per day
  • 3 days with some rainfall in June in Symi3
    3 days with some rainfall
  • 66°F minimum night-time temperature in June in Symi66
    66°F 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
  • 0.5 inches monthly rainfall in June in Symi0.5
    0.5 inches of monthly rainfall
  • UV (maximum) index 10 (Very High) in June in Symi10
    10 (Very High) UV index
  • 72°F sea temperature in June in Symi72
    72°F sea temperature

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Symi weather in July

Expect daytime maximum temperatures of 90°F 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.

  • 90°F maximum daytime temperature in July in Symi90
    90°F max day temperature
  • 14 hours of sunshine per day
  • 5 days with some rainfall in July in Symi5
    5 days with some rainfall
  • 70°F minimum night-time temperature in July in Symi70
    70°F 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
  • 0.1 inches monthly rainfall in July in Symi0.1
    0.1 inches of monthly rainfall
  • UV (maximum) index 10 (Very High) in July in Symi10
    10 (Very High) UV index
  • 75°F sea temperature in July in Symi75
    75°F sea temperature

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Symi weather in August

Expect daytime maximum temperatures of 90°F 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.

  • 90°F maximum daytime temperature in August in Symi90
    90°F max day temperature
  • 13 hours of sunshine per day
  • 6 days with some rainfall in August in Symi6
    6 days with some rainfall
  • 70°F minimum night-time temperature in August in Symi70
    70°F 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
  • 0.2 inches monthly rainfall in August in Symi0.2
    0.2 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in August in Symi9
    9 (Very High) UV index
  • 79°F sea temperature in August in Symi79
    79°F sea temperature

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Symi weather in September

Expect daytime maximum temperatures of 84°F in Symi, Greece in September based on long-term weather averages. There are 11 hours of sunshine per day on average.

  • 84°F maximum daytime temperature in September in Symi84
    84°F max day temperature
  • 11 hours of sunshine per day
  • 4 days with some rainfall in September in Symi4
    4 days with some rainfall
  • 66°F minimum night-time temperature in September in Symi66
    66°F 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
  • 0.6 inches monthly rainfall in September in Symi0.6
    0.6 inches of monthly rainfall
  • UV (maximum) index 7 (High) in September in Symi7
    7 (High) UV index
  • 77°F sea temperature in September in Symi77
    77°F sea temperature

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Symi weather in October

Expect daytime maximum temperatures of 75°F in Symi, Greece in October based on long-term weather averages. There are 8 hours of sunshine per day on average with typically 2.7 inches of rainfall in the month.

  • 75°F maximum daytime temperature in October in Symi75
    75°F max day temperature
  • 8 hours of sunshine per day
  • 6 days with some rainfall in October in Symi6
    6 days with some rainfall
  • 59°F minimum night-time temperature in October in Symi59
    59°F 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
  • 2.7 inches monthly rainfall in October in Symi2.7
    2.7 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in October in Symi5
    5 (Moderate) UV index
  • 73°F sea temperature in October in Symi73
    73°F sea temperature

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Symi weather in November

Expect daytime maximum temperatures of 66°F in Symi, Greece in November based on long-term weather averages. There are 6 hours of sunshine per day on average with typically 4.3 inches of rainfall in the month.

  • 66°F maximum daytime temperature in November in Symi66
    66°F max day temperature
  • 6 hours of sunshine per day
  • 9 days with some rainfall in November in Symi9
    9 days with some rainfall
  • 52°F minimum night-time temperature in November in Symi52
    52°F 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
  • 4.3 inches monthly rainfall in November in Symi4.3
    4.3 inches of monthly rainfall
  • UV (maximum) index 3 (Moderate) in November in Symi3
    3 (Moderate) UV index
  • 70°F sea temperature in November in Symi70
    70°F sea temperature

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Symi weather in December

Expect daytime maximum temperatures of 61°F 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 7.5 inches of rainfall in the month.

  • 61°F maximum daytime temperature in December in Symi61
    61°F max day temperature
  • 5 hours of sunshine per day
  • 14 days with some rainfall in December in Symi14
    14 days with some rainfall
  • 46°F minimum night-time temperature in December in Symi46
    46°F 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
  • 7.5 inches monthly rainfall in December in Symi7.5
    7.5 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in December in Symi2
    2 (Low) UV index
  • 66°F sea temperature in December in Symi66
    66°F 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

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  • 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 (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 (°F)

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

Metric (°C)  |  Imperial (°F)

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