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Piraeus Weather by Month
Average temperatures, rainfall and humidity for Piraeus, Greece, month by month, built from OpenWeather's historical records. Use it to see what a typical Piraeus month looks like before you travel — then check the live Piraeus forecast for the days ahead.
Warmest month
July
33°C average high
Coolest month
January
7°C average low
Wettest month
July
90 mm of rain
Driest month
May
14 mm of rain
Average temperature and rainfall in Piraeus by month
Averages of the daily highs and lows recorded in each month, with total rainfall, mean humidity and mean wind speed.
| Month | Avg high | Avg low | Record low / high | Rainfall | Humidity | Wind |
|---|---|---|---|---|---|---|
| January | 14°C | 7°C | -5°C / 22°C | 38 mm | 73% | 12 km/h |
| February | 15°C | 8°C | -1°C / 22°C | 25 mm | 71% | 12 km/h |
| March | 17°C | 9°C | 1°C / 25°C | 43 mm | 66% | 12 km/h |
| April | 21°C | 12°C | 5°C / 29°C | 19 mm | 60% | 12 km/h |
| May | 25°C | 17°C | 9°C / 37°C | 14 mm | 55% | 11 km/h |
| June | 30°C | 22°C | 15°C / 43°C | 20 mm | 52% | 11 km/h |
| July | 33°C | 25°C | 16°C / 43°C | 90 mm | 45% | 13 km/h |
| August | 33°C | 25°C | 19°C / 43°C | 78 mm | 47% | 14 km/h |
| September | 29°C | 21°C | 14°C / 40°C | 54 mm | 55% | 12 km/h |
| October | 24°C | 17°C | 6°C / 32°C | 37 mm | 66% | 11 km/h |
| November | 19°C | 13°C | 4°C / 31°C | 31 mm | 71% | 11 km/h |
| December | 15°C | 9°C | -1°C / 22°C | 44 mm | 74% | 11 km/h |
Best time to visit Piraeus
The most comfortable time to visit Piraeus is generally April to May and October, balancing mild daytime temperatures against the driest stretch of the year. The city has strongly marked seasons and rain concentrates around July, totalling about 493 mm a year.
Travellers who prefer heat should aim for July, when highs average 33°C. July is the month to avoid if rain would spoil your plans — it averages 90 mm, roughly 6× the rainfall of May.
Source: OpenWeather historical and statistical weather data. Values are long-term averages, not a forecast — see the Piraeus forecast for what is happening now.