Piraeus Sea Temperature Today: 30-Day Water Forecast
The sea temperature in Piraeus today is +29°C. Over the next 30 days, the water temperature is expected to stay between +28°C and +29°C. The water is warm enough for swimming and beach time. For a shorter view, open the 14-day sea temperature forecast.
Daily air temperature for the month
Day +36°C
Night +28°C
Daily sea water temperature for the month
Water +29°C
Tap a date to open detailed daily weather
| July | Day | Night | Sea t° | Wind | Precipitation | Humidity |
|---|---|---|---|---|---|---|
| 20Mon |  +36°C |  +28°C | +29°C | 3 m/s, SW | 0 mm | 45% |
| 21Tue | +36°C | +28°C | +29°C | 3 m/s, SW | 0 mm | 48% |
| 22Wed | +35°C | +28°C | +29°C | 3–4 m/s, S | 0 mm | 49% |
| 23Thu | +32°C | +25°C | +29°C | 3 m/s, ENE | 1.2 mm | 51% |
| 24Fri |  +30°C |  +23°C | +29°C | 4–5 m/s, S | 7 mm | 56% |
| 25Sat | +29°C | +23°C | +28°C | 6–7 m/s, N | 0.8 mm | 40% |
| 26Sun | +30°C | +23°C | +28°C | 3 m/s, N | 0 mm | 48% |
| 27Mon | +32°C | +24°C | +28°C | 3–4 m/s, ENE | 0 mm | 46% |
| 28Tue | +34°C | +26°C | +28°C | 3–4 m/s, NNE | 0 mm | 35% |
| Further values are multi-year averaged climate | ||||||
| 29Wed | +35°C | +25°C | +28°C | 4 m/s | 0 mm | 41% |
| 30Thu | +35°C | +26°C | +28°C | 4 m/s | 0 mm | 38% |
| 31Fri | +35°C | +26°C | +28°C | 3 m/s | 0 mm | 40% |
| 1Sat | +35°C | +26°C | +28°C | 4 m/s | 0 mm | 40% |
| 2Sun | +35°C | +26°C | +28°C | 3 m/s | 0 mm | 42% |
| 3Mon | +35°C | +26°C | +29°C | 3 m/s | 0 mm | 41% |
| 4Tue | +35°C | +26°C | +29°C | 3 m/s | 0 mm | 41% |
| 5Wed | +35°C | +26°C | +28°C | 3 m/s | 0 mm | 44% |
| 6Thu | +33°C | +25°C | +28°C | 4 m/s | 0 mm | 47% |
| 7Fri | +32°C | +25°C | +28°C | 4 m/s | 0 mm | 49% |
| 8Sat | +32°C | +25°C | +28°C | 5 m/s | 0.2 mm | 46% |
| 9Sun | +33°C | +25°C | +28°C | 5 m/s | 0.4 mm | 44% |
| 10Mon | +33°C | +25°C | +28°C | 4 m/s | 0 mm | 39% |
| 11Tue | +33°C | +25°C | +28°C | 5 m/s | 0.2 mm | 40% |
| 12Wed | +32°C | +24°C | +28°C | 5 m/s | 0 mm | 43% |
| 13Thu | +32°C | +24°C | +28°C | 5 m/s | 0.1 mm | 44% |
| 14Fri | +32°C | +24°C | +28°C | 4 m/s | 0.1 mm | 48% |
| 15Sat | +32°C | +22°C | +28°C | 4 m/s | 0 mm | 47% |
| 16Sun | +33°C | +24°C | +28°C | 4 m/s | 0 mm | 44% |
| 17Mon | +33°C | +24°C | +28°C | 4 m/s | 0 mm | 41% |
| 18Tue | +33°C | +25°C | +28°C | 3 m/s | 0 mm | 41% |
| 19Wed | +34°C | +25°C | +28°C | 3 m/s | 0 mm | 41% |
Sea water temperature by months
Water +27°C
Day and night air temperature
Day +34°C
Night +25°C
Weather minimums and maximums in Piraeus for a month
- Warmest day: 21 July, +36°C
- Coldest night: 15 August, +22°C
- Days with precipitation in a month: 8
- Precipitation for a month: 9.9 mm
- Rainiest day in a month: 24 July
- Maximum precipitation amount: 24 July 7 mm
- Highest sea water temperature: 20 July, +29°C
- Lowest sea water temperature: 25 July, +28°C
