Current Sea Water Temperature:
+70.0°F
| Maximum Sea Water Temperature in May: | 76.0°F |
| Minimum Sea Water Temperature in May: | 64.6°F |
| Average water temperature in May: | 69.3°F |
| detailed information | |
Sea Water Temperature for the Last 10 Days:
| May 24 | 70.0°F | May 19 | 68.8°F |
| May 23 | 70.2°F | May 18 | 67.8°F |
| May 22 | 69.8°F | May 17 | 68.2°F |
| May 21 | 69.0°F | May 16 | 68.4°F |
| May 20 | 69.2°F | May 15 | 69.2°F |
When is the Warmest Sea for Hersonissos?
According to our data for the last three years for Hersonissos the highest average sea water temperature was in August, July and September.
Average Water Temperature by Month, °F
Sea Water Temperature in August
The average sea surface temperature in August 2025 for Hersonissos was 82.8°F. The maximum and minimum values were 81.8°F and 84.0°F respectively.
Sea Water Temperature in July
The average sea surface temperature in July 2025 for Hersonissos was 82.2°F. The maximum and minimum values were 79.2°F and 85.8°F respectively.
Sea Water Temperature in September
The average sea surface temperature in September 2025 for Hersonissos was 81.0°F. The maximum and minimum values were 78.6°F and 83.4°F respectively.
Greece Resorts:
NAME
F°
| Athenes |  |
+72 |
| Bali Gr |  |
+68 |
| Chalkidiki | |
+70 |
| Chania | |
+70 |
| Corfu | |
+70 |
| Crete | |
+60 |
| Hanioti | |
+70 |
| Heraklion | |
+70 |
| Hersonissos |  |
+68 |
| Kassandra | |
+68 |
| Paralia Katerini | |
+72 |
| Rhodes | |
+72 |
| Thasos | |
+68 |
| Thessaloniki | |
+68 |
| Zakynthos | |
+68 |
Countries:
NAME
POPULARITY
24 Hours Weather Forecast
Hersonissos
Local time: 07:35
25 may, monday
| 0900 |  |
68°F | SE 14 mph |
| 1200 | |
70°F | SE 14 mph |
| 1500 |  |
70°F | SE 13 mph |
| 1800 | |
70°F | SE 12 mph |
| 2100 |  |
66°F | SE 10 mph |
26 may, tuesday
| 0000 |  |
64°F | E 9 mph |
| 0300 | |
64°F | E 9 mph |
| 0600 | |
62°F | SE 9 mph |