Climate averages 1991–2020
Weather in Greece in May
In May, average daytime highs across the 11 cities listed in Greece range from 23.2°C in Thessaloníki to 25.6°C in Irákleion. Monthly rainfall ranges from 11 mm in Glyfáda to 68 mm in Thessaloníki.
Long-term climate patterns, not a forecast for a particular trip.
City by city
May in Greece
| City | Average highHigh / low | Average low | Rainfall mm | Rain days |
|---|---|---|---|---|
| Athens | 25.4°C15.3°C | 15.3°C | 23 | 4.9 |
| Thessaloníki | 23.2°C15.5°C | 15.5°C | 68 | 9.5 |
| Pátra | 23.2°C13.4°C | 13.4°C | 52 | 8.5 |
| Piraeus | 25.3°C15.7°C | 15.7°C | 23 | 4.9 |
| Lárisa | 25.1°C14.0°C | 14.0°C | 47 | 6.9 |
| Irákleion | 25.6°C15.9°C | 15.9°C | 31 | 4.2 |
| Acharnés | 25.5°C14.5°C | 14.5°C | 23 | 4.9 |
| Glyfáda | 25.3°C15.9°C | 15.9°C | 11 | 2.6 |
| Volos | 23.2°C15.6°C | 15.6°C | 44 | 5.5 |
| Évosmos | 24.1°C15.2°C | 15.2°C | 68 | 9.5 |
| Khalándrion | 25.1°C14.5°C | 14.5°C | 23 | 4.9 |
A rain day is a local calendar day with at least 1 mm of precipitation.