In August warmest sea in Peloponnesus is usually observed in the following locations: Nafplio, Tolo, Poros.
Table below shows the average sea water temperature for marine resorts of Peloponnesus in August for the last three years.
| Place name | August 2025 | August 2024 | August 2023 |
|---|---|---|---|
| Nafplio | 80.5°F | 82.8°F | 82.2°F |
| Tolo | 80.5°F | 82.7°F | 82.2°F |
| Poros | 80.2°F | 81.7°F | 81.1°F |
| Aegina | 80.1°F | 82.3°F | 81.5°F |
| Piraeus | 79.6°F | 81.5°F | 80.9°F |
| Kyparissia | 79.6°F | 83.6°F | 80.1°F |
| Korinthos | 79.2°F | 81.6°F | 80.8°F |
| Loutraki | 79.1°F | 81.7°F | 80.7°F |
| Xilokastro | 78.5°F | 82.3°F | 80.1°F |
| Niforeika | 77.6°F | 82.6°F | 79.0°F |
Charts below show average sea water temperature for Peloponnesus resorts with the warmest sea in August.
You can also check other months of the year to see sea temperature of Peloponnesus resorts at that time.
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