In April warmest sea in Peloponnesus is usually observed in the following locations: Kyparissia, Tolo, Nafplio.
Table below shows the average sea water temperature for marine resorts of Peloponnesus in April for the last three years.
| Place name | April 2026 | April 2025 | April 2024 |
|---|---|---|---|
| Kyparissia | 62.7°F | 62.5°F | 64.1°F |
| Tolo | 62.1°F | 62.2°F | 64.4°F |
| Nafplio | 61.8°F | 62.1°F | 64.2°F |
| Poros | 61.7°F | 61.6°F | 64.2°F |
| Aegina | 61.6°F | 61.7°F | 63.9°F |
| Piraeus | 61.2°F | 61.3°F | 63.6°F |
| Niforeika | 60.8°F | 60.6°F | 63.6°F |
| Loutraki | 60.7°F | 61.2°F | 62.9°F |
| Korinthos | 60.5°F | 60.9°F | 62.8°F |
| Xilokastro | 60.3°F | 60.4°F | 62.3°F |
Charts below show average sea water temperature for Peloponnesus resorts with the warmest sea in April.
You can also check other months of the year to see sea temperature of Peloponnesus resorts at that time.
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