Current Sea Water Temperature:
+72.8°F
| Maximum Sea Water Temperature in December: | 74.0°F |
| Minimum Sea Water Temperature in December: | 65.0°F |
| Average water temperature in December: | 69.8°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| December 12 | 72.8°F | December 07 | 73.2°F |
| December 11 | 72.8°F | December 06 | 73.6°F |
| December 10 | 73.0°F | December 05 | 73.0°F |
| December 09 | 73.2°F | December 04 | 73.2°F |
| December 08 | 73.4°F | December 03 | 73.8°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
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
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
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.
Greece Resorts:
NAME
F°
| Athenes |  |
+54 |
| Athos | |
+56 |
| Bali Gr |  |
+62 |
| Chalkidiki |  |
+56 |
| Chania | |
+54 |
| Corfu |  |
+58 |
| Crete | |
+56 |
| Hanioti | |
+56 |
| Heraklion | |
+60 |
| Hersonissos | |
+58 |
| Paralia Katerini | |
+48 |
| Rhodes | |
+58 |
| Santorini | |
+64 |
| Thasos | |
+52 |
| Thessaloniki | |
+48 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Symi
Local time: 08:23
13 dec, saturday
| 0900 |  |
62°F | SE 4 mph |
| 1200 | |
64°F | S 5 mph |
| 1500 | |
64°F | SE 4 mph |
| 1800 |  |
62°F | SE 4 mph |
| 2100 | |
62°F | E 1 mph |
14 dec, sunday
| 0000 | |
62°F | S 2 mph |
| 0300 | |
62°F | S 2 mph |
| 0600 | |
60°F | S 2 mph |