Measurements:
°C
°F
Symi
54°F
NW 12 mph
Feels like: 50°F
Precip: 100%
World Resorts Greece Symi Weather

Symi Sea Water Temperature

Current Sea Water Temperature:
+65.6°F
Maximum Sea Water Temperature in February: 68.4°F
Minimum Sea Water Temperature in February: 62.2°F
Average water temperature in February: 64.9°F

Sea Water Temperature for the Last 10 Days:

February 21 65.6°F February 16 65.6°F
February 20 65.6°F February 15 66.4°F
February 19 65.8°F February 14 66.2°F
February 18 65.8°F February 13 66.4°F
February 17 66.0°F February 12 65.6°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: 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 61.6 °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 +60
Athos +56
Chalkidiki +56
Chania +62
Corfu +56
Crete +50
Heraklion +60
Lefkada +56
Mykonos +58
Paralia Katerini +58
Rhodes +52
Santorini +60
Thasos +48
Thessaloniki +52
Zakynthos +54
24 Hours Weather Forecast
Symi
Local time: 13:19
21 feb, saturday
1500 54°F
E
11 mph
1800 54°F
E
6 mph
2100 54°F
E
1 mph
22 feb, sunday
0000 54°F
NE
2 mph
0300 54°F
SE
2 mph
0600 54°F
E
4 mph
0900 56°F
S
4 mph
1200 58°F
SE
8 mph