May · Switzerland
Best time to visit Basel in May Weather, crowds & prices
Weather in Basel in May
Average temperature 14°C, 108 mm of rain, about 23 days with 6+ hours of sunshine and 80% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
May score
7.6/10
Ranked #4 of 12 months
- Avg temp
- 14°C
- Rainfall
- 108 mm
- Humidity
- 80%
- Days with 6h+ sun
- 23
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$ · Moderate Cost ($$)
May in Basel scores 7.6/10 for sightseeing and cultural travel - an above-average month (#4 of 12). Expect around 14°C, 108 mm of rain, and roughly 23 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.
May in Basel: strong conditions, 4th of 12
Temperatures hover around 14°C (57°F) — the kind of month where neither heat nor cold forces the schedule.
108 mm of rain makes this a wet month here, though with about 23 days with 6+ hours of sunshine there is still bright weather between the fronts.
That is 7.6/10 on the same scale — 4th of 12 months, versus 8.5/10 for the best month here.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
Expect mid-season pricing, and crowds are moderate.
Frequently asked
- What is the weather like in Basel in May?
- In May, Basel averages 14°C, 108 mm of rain, and about 23 days with 6+ hours of sunshine. Its climate-comfort score is 7.6/10.
- Is May a good time to visit Basel?
- May earns a 7.6/10 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 May?
- Expect about 108 mm of rain in May. Average humidity is 80% and there are about 23 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.