Measurements:
°C
°F
Symi
72°F
NW 1 mph
Feels like: 72°F
Precip: 12%
World Resorts Greece Symi Weather

Symi Sea Water Temperature

Current Sea Water Temperature:
+80.0°F
Maximum Sea Water Temperature in October: 83.6°F
Minimum Sea Water Temperature in October: 74.0°F
Average water temperature in October: 78.0°F

Sea Water Temperature for the Last 10 Days:

October 04 80.0°F September 29 80.8°F
October 03 80.4°F September 28 80.4°F
October 02 80.6°F September 27 80.0°F
October 01 80.6°F September 26 80.8°F
September 30 80.6°F September 25 81.6°F

When is the Warmest Sea for Symi?

According to our data for the last three years for Symi the highest average sea water temperature was in August, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Symi was 82.3°F. The maximum and minimum values were 79.0°F and 84.2°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Symi was 82.8°F. The maximum and minimum values were 80.0°F and 84.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Symi was 78.0°F. The maximum and minimum values were 75.6°F and 80.4°F respectively.

Best Time to Visit Symi
The most sunny months:
July 31 days
August 31 days
June 29 days
The most warm months:
August 90.2 °F
July 90.1 °F
September 85.0 °F
Warmest sea temperature:
August 83.7 °F
September 82.3 °F
July 80.3 °F
The most cold months:
January 58.1 °F
February 58.9 °F
March 61.5 °F
The most rainy months:
January 8 days
December 7 days
February 5 days
The most windy months:
January 12 mph
February 12 mph
March 11 mph

Symi on the Weather Map

Greece Resorts:
NAME
F°
Athenes +70
Bali Gr +66
Chalkidiki +68
Chania +66
Corfu +70
Crete +58
Hanioti +70
Paralia Katerini +72
Pefkochori +70
Possidi +70
Rhodes +70
Sithonia +70
Thasos +64
Thessaloniki +72
Zakynthos +70
24 Hours Weather Forecast
Symi
Local time: 11:57
04 oct, sunday
1200 72°F
NW
1 mph
1500 72°F
NE
5 mph
1800 72°F
E
11 mph
2100 72°F
E
9 mph
05 oct, monday
0000 72°F
E
9 mph
0300 72°F
SE
6 mph
0600 72°F
SE
4 mph
0900 72°F
SE
4 mph