Athens weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Good
Best time to visit: April – May, September – October
What is the weather like in Athens in August?
In August, Athens is hot: daytime highs average 33 °C, and even at night it stays warm at around 23 °C. The sea averages 26.2 °C – lovely and warm for swimming. With around 11 hours of sunshine a day, there is plenty of sun. It hardly ever rains. On about 27 days the thermometer climbs to 30 °C or more. All in all, August is a good month for a holiday in Athens.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 59 | 63 | 91 |
| Day | 34° | 33° | 28° |
| Night | 23° | 23° | 19° |
| Sea | 25° | 26° | 25° |
| Sun | 13 h | 11 h | 9 h |
| Rain days | 1 | 1 | 3 |
More details for August
- Daylight
- 13 h 41 min06:40 – 20:20
- UV index
- 9 · very highclear sky, noon (estimate)
- Muggy days
- 4 daysdew point 18 °C or more
- Wind
- 17 km/haverage daily peak
- Cloud cover
- 8 %on average
- Hot days
- 27 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snow
- Time zone
- UTC+3Europe/Athens
How the score comes together
- Temperatureweight 50 %26 %
- Sunshineweight 20 %100 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Light, breathable clothes
- Water bottle – drink plenty
Athens in August: quick answers
Is Athens hot in August?
Yes. In August, Athens is hot: daytime highs average 33 °C and nights stay around 23 °C. On about 27 days the thermometer climbs to 30 °C or more.
Can you swim in Athens in August?
Yes. In August the sea averages 26.2 °C – lovely and warm for swimming.
Does it rain much in Athens in August?
It hardly ever rains.
Athens month by month
The whole year in AthensAll destinations: Greece
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, GeoNames (CC BY 4.0)