Measurements:
°C
°F
Symi
80°F
E 11 mph
Feels like: 84°F
Precip: 6%
World Resorts Greece Symi Weather

Symi Sea Water Temperature

Current Sea Water Temperature:
+78.0°F
Maximum Sea Water Temperature in June: 81.8°F
Minimum Sea Water Temperature in June: 68.4°F
Average water temperature in June: 75.9°F

Sea Water Temperature for the Last 10 Days:

June 23 78.0°F June 18 76.8°F
June 22 78.2°F June 17 76.2°F
June 21 77.2°F June 16 75.8°F
June 20 76.8°F June 15 76.0°F
June 19 76.4°F June 14 77.4°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: 2025 2024 2023

The average sea surface temperature in August 2025 for Symi was 82.9°F. The maximum and minimum values were 79.4°F and 86.4°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Symi was 82.4°F. The maximum and minimum values were 80.2°F and 84.8°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Symi was 82.8°F. The maximum and minimum values were 80.0°F and 85.2°F respectively.

Best Time to Visit Symi
The most sunny months:
July 31 days
August 31 days
June 28 days
The most warm months:
August 90.5 °F
July 90.3 °F
September 85.5 °F
Warmest sea temperature:
August 83.8 °F
September 82.3 °F
July 80.5 °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
Athenes +76
Bali Gr +62
Chalkidiki +78
Chania +74
Corfu +76
Crete +76
Hanioti +78
Heraklion +70
Hersonissos +70
Paralia Katerini +70
Rhodes +78
Sithonia +78
Thasos +74
Thessaloniki +74
Zakynthos +78
24 Hours Weather Forecast
Symi
Local time: 01:50
24 jun, wednesday
0300 80°F
E
11 mph
0600 78°F
E
12 mph
0900 80°F
E
11 mph
1200 82°F
E
11 mph
1500 82°F
E
15 mph
1800 80°F
E
17 mph
2100 78°F
E
14 mph
25 jun, thursday
0000 78°F
E
13 mph