Climate averages 1991–2020
Athens weather
in May.
A warm, fairly dry month: the 5th warmest and the 5th driest of the year. Meets the pleasant-weather rule
Long-term climate patterns, not a forecast for a particular trip.
May is a warm month in Athens: daytime highs average 25.4°C and nights cool to about 15.3°C. By daytime temperature it is the 5th warmest of the 12 months.
Expect about 23 mm of rain on roughly 5 days, which makes May a fairly dry month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 12 min on an average May day.
The nearest other city in this atlas is Khalándrion (8 km away). In May its highs average 25.1°C, about as warm as Athens, with 23 mm of rain.
Among the 11 cities listed in Greece, Athens ranks 3rd of 11 for the warmest May highs and joint 2nd of 11 for the driest May (rainfall, lowest first). The mean May high of those 11 cities is 24.6°C; Athens is 0.8°C warmer than that mean.
From May to June, average highs rise by 5.1°C to 30.5°C, and monthly rainfall falls from 23 mm to 11 mm.
The annual picture
May in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Athens climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 11.9°C5.4°C | 5.4°C | 52 | 7.3 | 9.910 h |
| February | 12.9°C5.7°C | 5.7°C | 47 | 7.2 | 10.811 h |
| March | 15.8°C7.6°C | 7.6°C | 49 | 6.4 | 11.912 h |
| April | 19.9°C10.6°C | 10.6°C | 29 | 5.4 | 13.213 h |
| May, selected | 25.4°C15.3°C | 15.3°C | 23 | 4.9 | 14.214 h |
| June | 30.5°C19.8°C | 19.8°C | 11 | 2.5 | 14.815 h |
| July | 32.8°C22.2°C | 22.2°C | 6.4 | 1.3 | 14.515 h |
| August | 32.6°C22.2°C | 22.2°C | 4.4 | 1.1 | 13.614 h |
| September | 28.3°C19.0°C | 19.0°C | 15 | 2.5 | 12.512 h |
| October | 23.1°C15.2°C | 15.2°C | 27 | 3.8 | 11.211 h |
| November | 17.6°C11.0°C | 11.0°C | 45 | 6.6 | 10.210 h |
| December | 13.2°C7.3°C | 7.3°C | 58 | 7.8 | 9.610 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
May in nearby cities
- Khalándrion in MayGreece · 8 kmHigh 25.1°C · Low 14.5°C · 23 mm rain
- Piraeus in MayGreece · 9 kmHigh 25.3°C · Low 15.7°C · 23 mm rain
- Acharnés in MayGreece · 11 kmHigh 25.5°C · Low 14.5°C · 23 mm rain
- Glyfáda in MayGreece · 14 kmHigh 25.3°C · Low 15.9°C · 11 mm rain
- Volos in MayGreece · 168 kmHigh 23.2°C · Low 15.6°C · 44 mm rain
- Pátra in MayGreece · 177 kmHigh 23.2°C · Low 13.4°C · 52 mm rain
- Lárisa in MayGreece · 215 kmHigh 25.1°C · Low 14.0°C · 47 mm rain
- Ayvalık in MayTurkey · 297 kmHigh 21.7°C · Low 16.0°C · 34 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Athens) is explained once on the Athens year overview and on the Sources, method and limits page.
Piraeus, Acharnés and Khalándrion lie in the same rainfall cell, so their rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.