August · Switzerland
Best time to visit Basel in August Weather, crowds & prices
Weather in Basel in August
Average temperature 20°C, 92 mm of rain, about 24 days with 6+ hours of sunshine and 73% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
8.3/10
Ranked #2 of 12 months
- Avg temp
- 20°C
- Rainfall
- 92 mm
- Humidity
- 73%
- Days with 6h+ sun
- 24
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
August in Basel scores 8.3/10 for sightseeing and cultural travel - one of the top 12-month picks (#2). Expect around 20°C, 92 mm of rain, and roughly 24 days with 6+ hours of sunshine this month.
Basel meets France and Germany on the Rhine, with a painted old town, world-class museums and Switzerland's oldest university.
August in Basel — reliably good (2nd best month)
At 20°C (68°F) this is comfortable city weather in August, with sightseeing easiest before lunch and after the afternoon peak.
Budget for roughly 92 mm of rain this month — a flexible day or two helps — with about 24 days with 6+ hours of sunshine and 14.1 hours of daylight to work around it.
That is 8.3/10 on the same scale — 2nd of 12 months, versus 8.5/10 for the best month here.
Pack light clothing, a hat and real sun protection, a packable rain layer.
Expect peak pricing, and this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Basel in August?
- In August, Basel averages 20°C, 92 mm of rain, and about 24 days with 6+ hours of sunshine. Its climate-comfort score is 8.3/10.
- Is August a good time to visit Basel?
- August earns a 8.3/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Basel in August?
- Expect about 92 mm of rain in August. Average humidity is 73% and there are about 24 days with 6+ hours of sunshine.
Curated in Basel
Tickets & experiences
Things to do in Basel
Basel, Switzerland. Live activities and tours from GetYourGuide, matched to this destination.