Syros climate guide

Get the latest coronavirus (Covid-19) updates for Greece with current travel advice and statistics on new cases per 100,000 and vaccine.

Temperature in Syros (°C)

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Max temperature (daytime)
13°C maximum daytime temperature in January in Syros (Ermoupolis)13
13°C maximum daytime temperature in February in Syros (Ermoupolis)13
15°C maximum daytime temperature in March in Syros (Ermoupolis)15
18°C maximum daytime temperature in April in Syros (Ermoupolis)18
22°C maximum daytime temperature in May in Syros (Ermoupolis)22
26°C maximum daytime temperature in June in Syros (Ermoupolis)26
28°C maximum daytime temperature in July in Syros (Ermoupolis)28
27°C maximum daytime temperature in August in Syros (Ermoupolis)27
25°C maximum daytime temperature in September in Syros (Ermoupolis)25
21°C maximum daytime temperature in October in Syros (Ermoupolis)21
18°C maximum daytime temperature in November in Syros (Ermoupolis)18
15°C maximum daytime temperature in December in Syros (Ermoupolis)15
Min temperature (night-time)
8°C minimum night-time temperature in January in Syros (Ermoupolis)8
8°C minimum night-time temperature in February in Syros (Ermoupolis)8
9°C minimum night-time temperature in March in Syros (Ermoupolis)9
12°C minimum night-time temperature in April in Syros (Ermoupolis)12
15°C minimum night-time temperature in May in Syros (Ermoupolis)15
19°C minimum night-time temperature in June in Syros (Ermoupolis)19
22°C minimum night-time temperature in July in Syros (Ermoupolis)22
21°C minimum night-time temperature in August in Syros (Ermoupolis)21
19°C minimum night-time temperature in September in Syros (Ermoupolis)19
16°C minimum night-time temperature in October in Syros (Ermoupolis)16
13°C minimum night-time temperature in November in Syros (Ermoupolis)13
10°C minimum night-time temperature in December in Syros (Ermoupolis)10
Sea temperature
15°C sea temperature in January in Syros (Ermoupolis)15
15°C sea temperature in February in Syros (Ermoupolis)15
15°C sea temperature in March in Syros (Ermoupolis)15
16°C sea temperature in April in Syros (Ermoupolis)16
18°C sea temperature in May in Syros (Ermoupolis)18
22°C sea temperature in June in Syros (Ermoupolis)22
23°C sea temperature in July in Syros (Ermoupolis)23
24°C sea temperature in August in Syros (Ermoupolis)24
23°C sea temperature in September in Syros (Ermoupolis)23
21°C sea temperature in October in Syros (Ermoupolis)21
18°C sea temperature in November in Syros (Ermoupolis)18
16°C sea temperature in December in Syros (Ermoupolis)16

Sunshine & Daylight in Syros

  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 Syros (Ermoupolis)10
11 hours of daylight per day in February in Syros (Ermoupolis)11
12 hours of daylight per day in March in Syros (Ermoupolis)12
13 hours of daylight per day in April in Syros (Ermoupolis)13
14 hours of daylight per day in May in Syros (Ermoupolis)14
15 hours of daylight per day in June in Syros (Ermoupolis)15
14 hours of daylight per day in July in Syros (Ermoupolis)14
14 hours of daylight per day in August in Syros (Ermoupolis)14
12 hours of daylight per day in September in Syros (Ermoupolis)12
11 hours of daylight per day in October in Syros (Ermoupolis)11
10 hours of daylight per day in November in Syros (Ermoupolis)10
10 hours of daylight per day in December in Syros (Ermoupolis)10

Rainfall in Syros

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Number of days with some rain
10 days with some rainfall in January in Syros (Ermoupolis)10
9 days with some rainfall in February in Syros (Ermoupolis)9
8 days with some rainfall in March in Syros (Ermoupolis)8
6 days with some rainfall in April in Syros (Ermoupolis)6
3 days with some rainfall in May in Syros (Ermoupolis)3
1 day with some rainfall in June in Syros (Ermoupolis)1
1 day with some rainfall in July in Syros (Ermoupolis)1
1 day with some rainfall in August in Syros (Ermoupolis)1
1 day with some rainfall in September in Syros (Ermoupolis)1
4 days with some rainfall in October in Syros (Ermoupolis)4
8 days with some rainfall in November in Syros (Ermoupolis)8
11 days with some rainfall in December in Syros (Ermoupolis)11
Average monthly rainfall (mm)
90 mm monthly rainfall in January in Syros (Ermoupolis)90
63 mm monthly rainfall in February in Syros (Ermoupolis)63
56 mm monthly rainfall in March in Syros (Ermoupolis)56
26 mm monthly rainfall in April in Syros (Ermoupolis)26
16 mm monthly rainfall in May in Syros (Ermoupolis)16
5 mm monthly rainfall in June in Syros (Ermoupolis)5
2 mm monthly rainfall in July in Syros (Ermoupolis)2
2 mm monthly rainfall in August in Syros (Ermoupolis)2
12 mm monthly rainfall in September in Syros (Ermoupolis)12
48 mm monthly rainfall in October in Syros (Ermoupolis)48
63 mm monthly rainfall in November in Syros (Ermoupolis)63
91 mm monthly rainfall in December in Syros (Ermoupolis)91

More climate for Syros

  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (Maximum)
UV (maximum) index 2 (Low) in January in Syros (Ermoupolis)2
UV (maximum) index 3 (Moderate) in February in Syros (Ermoupolis)3
UV (maximum) index 5 (Moderate) in March in Syros (Ermoupolis)5
UV (maximum) index 6 (High) in April in Syros (Ermoupolis)6
UV (maximum) index 8 (Very High) in May in Syros (Ermoupolis)8
UV (maximum) index 9 (Very High) in June in Syros (Ermoupolis)9
UV (maximum) index 10 (Very High) in July in Syros (Ermoupolis)10
UV (maximum) index 9 (Very High) in August in Syros (Ermoupolis)9
UV (maximum) index 7 (High) in September in Syros (Ermoupolis)7
UV (maximum) index 5 (Moderate) in October in Syros (Ermoupolis)5
UV (maximum) index 3 (Moderate) in November in Syros (Ermoupolis)3
UV (maximum) index 2 (Low) in December in Syros (Ermoupolis)2
Heat & Humidity
No heat & humidity in January in Syros (Ermoupolis)0
No heat & humidity in February in Syros (Ermoupolis)0
No heat & humidity in March in Syros (Ermoupolis)0
No heat & humidity in April in Syros (Ermoupolis)0
No heat & humidity in May in Syros (Ermoupolis)0
Low heat & humidity in June in Syros (Ermoupolis)L
Moderate heat & humidity in July in Syros (Ermoupolis)M
Moderate heat & humidity in August in Syros (Ermoupolis)M
Low heat & humidity in September in Syros (Ermoupolis)L
No heat & humidity in October in Syros (Ermoupolis)0
No heat & humidity in November in Syros (Ermoupolis)0
No heat & humidity in December in Syros (Ermoupolis)0

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

Momondo: Compare latest car hire deals

  • Search & compare the best car hire deals
  • Free 48-hour cancellation policy & no hidden charges
  • Check prices with Avis, Europcar, Sixt & more
Go to Momondo deal >>

View all Momondo offers

Recommended for Syros

  • Top deals & discounts
  • Syros weather overview
  • More destinations
  • Best time to go to Syros
  • Syros 5-day weather forecast
  • Syros weather today - current conditions (last 24-hours)

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

The climate guide for Syros 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

Related posts

Popular travel offers

Top ^

*affiliate links: find out how we are funded and why this helps us remain free to use.