Basel weather in August
Temperature, rain 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: May – September
What is the weather like in Basel in August?
In August, Basel is warm: daytime highs average 25 °C, and nights cool down to about 15 °C. The sun shines for around 7 hours a day. Rain is frequent, with about 12 rainy days and 78 mm in total. All in all, August is a good month for a holiday in Basel.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 76 | 76 | 74 |
| Day | 25° | 25° | 20° |
| Night | 15° | 15° | 11° |
| Sun | 8 h | 7 h | 5 h |
| Rain days | 13 | 12 | 10 |
More details for August
- Daylight
- 14 h 20 min06:25 – 20:45
- UV index
- 7 · highclear sky, noon (estimate)All months
- Muggy days
- 1 daydew point 18 °C or moreAll months
- Wind
- 10 km/haverage daily peakAll months
- Cloud cover
- 55 %on averageAll months
- Hot days
- 4 days30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+2Europe/Zurich
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %67 %
- Few rainy daysweight 30 %42 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Sunscreen
- Sunglasses & sun hat
- A jumper for the evenings
- Rain jacket or umbrella
Basel in August: quick answers
Is Basel hot in August?
Warm rather than hot: in August, daytime highs in Basel average 25 °C and nights cool to about 15 °C. On about 4 days the thermometer climbs to 30 °C or more.
Does it rain much in Basel in August?
Rain is frequent, with about 12 rainy days and 78 mm in total.
Basel month by month
The whole year in BaselAll destinations: SwitzerlandWhere to go in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences