When is the best time to go to Sými

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The chart above shows the best time of year to visit Sými, Greece. These are based on an analysis of weather averages such as temperature, rainfall and number of hours of sunshine. These ratings are based solely on the climate and do not take into account other factors such as accommodation prices and how busy it is likely to be.

Average temperatures in Sými

Sými weather by month

Please note our recommendations for when to visit Sými are based solely on the weather and do not take into accounts accommodation prices, how busy it will be and what events are on.

January

Sými January weather averages
Temp Rain Sunshine Day length Sea temp
13°C 181mm 5.6hrs 10.9hrs 17°C

Sými's weather in January is typically mild and wet in nature.

Based on weather alone, this is probably a time of year to avoid going to Sými for your holidays. The weather is often pretty bad and not conducive to spending time outdoors.

January is in the winter in Sými and is typically the coldest month of the year. Daytime maximum temperatures average around a cool 14°C (57°F), whilst at night 7°C (44°F) is normal.

On average January is the driest month of the year in Sými with around 181mm 7.1 inches of rain making it a wet time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.6 hours of sunshine per day.

Sými weather in January »

February

Sými February weather averages
Temp Rain Sunshine Day length Sea temp
13°C 136mm 6.3hrs 11.7hrs 16°C

February in Sými is generally wet with the temperature being mild.

Based on weather alone, this is probably a time of year to avoid going to Sými for your holidays. The weather is often not a good and not conducive to spending time outdoors.

February is in the winter in Sými and is typically the 2nd coldest month of the year. Daytime maximum temperatures average around a cool 15°C (58°F), whilst at night 7°C (45°F) is normal.

On average February is the 2nd driest month of the year in Sými with around 136mm 5.4 inches of rain making it a wet time to visit. This rainfall is typically spread over 12 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.3 hours of sunshine per day.

Sými weather in February »

March

Sými March weather averages
Temp Rain Sunshine Day length Sea temp
15°C 87mm 7.7hrs 12.8hrs 16°C

The weather in March in Sými is characteristically mild and a little damp.

Although outside the main holiday season, there is still plenty of fairly acceptable weather around this time of year. This makes it an okay time to visit Sými.

March is in the spring in Sými and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cool 17°C (62°F), whilst at night 8°C (47°F) is normal.

On average March is the 3rd driest month of the year in Sými with around 87mm 3.4 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.7 hours of sunshine per day.

Sými weather in March »

April

Sými April weather averages
Temp Rain Sunshine Day length Sea temp
18°C 36mm 9.2hrs 14hrs 17°C

Sými's weather in April is typically mild and reasonably dry in nature.

Although outside the main holiday season, there is still plenty of quite acceptable weather around this time of year. This makes it an okay time to visit Sými.

April is in the spring in Sými and is typically the 4th coldest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 11°C (52°F) is normal.

On average April is the 4th driest month of the year in Sými with around 36mm 1.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.2 hours of sunshine per day.

Sými weather in April »

May

Sými May weather averages
Temp Rain Sunshine Day length Sea temp
22°C 22mm 11.2hrs 15hrs 19°C

May is a dry month in Sými and the temperature is generally warm.

It is perhaps the perfect month to visit Sými, with some particularly good weather at this time of year.

May is in the spring in Sými and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a comfortable 25°C (77°F), whilst at night 15°C (58°F) is normal.

On average May is the 5th driest month of the year in Sými with around 22mm 0.9 inches of rain making it a dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.

On the flip side this corresponds to an average of 11.2 hours of sunshine per day.

Sými weather in May »

June

Sými June weather averages
Temp Rain Sunshine Day length Sea temp
26°C 10mm 14hrs 10.9hrs 22°C

June in Sými is generally dry with the temperature being hot.

It is perhaps the perfect month to visit Sými, with some extremely good weather at this time of year.

June is in the summer in Sými and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a comfortable 29°C (85°F), whilst at night 19°C (66°F) is normal.

On average June is the 6th driest month of the year in Sými with around 10mm 0.4 inches of rain making it a dry time to visit. This rainfall is typically spread over 3 days, although this may vary considerably.

On the flip side this corresponds to an average of 14 hours of sunshine per day.

Sými weather in June »

July

Sými July weather averages
Temp Rain Sunshine Day length Sea temp
29°C 3mm 14.8hrs 11.7hrs 24°C

July in Sými is generally very dry with the temperature being hot.

It is perhaps a good month to visit Sými, with some inordinately good weather at this time of year.

July is in the summer in Sými and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a warm 32°C (90°F), whilst at night 22°C (71°F) is normal.

On average July is the 6th wettest month of the year in Sými with around 3mm 0.1 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 14.8 hours of sunshine per day.

Sými weather in July »

August

Sými August weather averages
Temp Rain Sunshine Day length Sea temp
29°C 4mm 13.9hrs 12.8hrs 25°C

The weather in August in Sými is characteristically hot and very dry.

It is perhaps a good month to visit Sými, with some particularly good weather at this time of year.

August is in the summer in Sými and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a warm 32°C (90°F), whilst at night 22°C (71°F) is normal.

On average August is the 5th wettest month of the year in Sými with around 4mm 0.2 inches of rain making it a very dry time to visit.

On the flip side this corresponds to an average of 13.9 hours of sunshine per day.

Sými weather in August »

September

Sými September weather averages
Temp Rain Sunshine Day length Sea temp
26°C 13mm 12hrs 14hrs 24°C

Sými's weather in September is typically hot and dry in nature.

It is perhaps the perfect month to visit Sými, with some particularly good weather at this time of year.

September is in the fall / autumn in Sými and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a comfortable 29°C (85°F), whilst at night 19°C (66°F) is normal.

On average September is the 4th wettest month of the year in Sými with around 13mm 0.5 inches of rain making it a dry time to visit. This rainfall is typically spread over 4 days, although this may vary considerably.

On the flip side this corresponds to an average of 12 hours of sunshine per day.

Sými weather in September »

October

Sými October weather averages
Temp Rain Sunshine Day length Sea temp
22°C 69mm 8.8hrs 15hrs 22°C

October is a reasonably dry month in Sými and the temperature is generally warm.

Although outside the main holiday season, there is still plenty of reasonably acceptable weather around this time of year. This makes it an okay time to visit Sými.

October is in the fall / autumn in Sými and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 24°C (76°F), whilst at night 15°C (59°F) is normal.

On average October is the 3rd wettest month of the year in Sými with around 69mm 2.7 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.8 hours of sunshine per day.

Sými weather in October »

November

Sými November weather averages
Temp Rain Sunshine Day length Sea temp
18°C 108mm 6.7hrs 10.9hrs 20°C

November is a damp month in Sými and the temperature is generally mild.

Based on weather alone, this is probably a time of year to avoid going to Sými for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.

November is in the fall / autumn in Sými and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around 20°C (67°F), whilst at night 11°C (52°F) is normal.

On average November is the 2nd wettest month of the year in Sými with around 108mm 4.3 inches of rain making it a damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.7 hours of sunshine per day.

Sými weather in November »

December

Sými December weather averages
Temp Rain Sunshine Day length Sea temp
14°C 186mm 5.4hrs 11.7hrs 18°C

December in Sými is generally wet with the temperature being mild.

Based on weather alone, this is probably a time of year to avoid going to Sými for your holidays. The weather is often relatively bad and not conducive to spending time outdoors.

December is in the winter in Sými and is typically the warmest month of the year. Daytime maximum temperatures average around a cool 16°C (60°F), whilst at night 9°C (48°F) is normal.

On average December is the wettest month of the year in Sými with around 186mm 7.3 inches of rain making it a wet time to visit. This rainfall is typically spread over 14 days, although this may vary considerably.

On the flip side this corresponds to an average of 5.4 hours of sunshine per day.

Sými weather in December »

Other monthly averages

UV index Best time to go?

Sými weather stats

Sými weather statistics
Hottest month: July 31.8°C 89.2°F
Driest month: July 3mm 0.1ins
Sunniest month: July 14.8hrs
Coldest month: January 13.9°C 57°F
Wettest month: December 186mm 7.3ins
Warmest sea: August 25.1°C 77.2°F
Map showing location of Sými (36.61246, 27.8378) Sými map pin © Google

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