The 5 most scenic train journeys in Switzerland
Explore Switzerland's top 5 train journeys, featuring breathtaking Alpine views and engineering marvels like the Glacier Express and Bernina Express.
Basel Weather in May
Basel in May sees pleasant daytime temperatures of 20°C (68°F) and nighttime lows of 9°C (48°F). With the highest rainfall of the year it is wise to pack an umbrella and expect frequent showers.
Rainfall in Basel in May
Since this month has the highest rainfall, keep an umbrella with you to handle sudden showers. On average, there are about 18 days with rain during this month, averaging 127 mm (5 in). This month brings frequent, heavy showers. Both the number of wet days and the rainfall totals are on the high side.
Temperature in Basel in May
Expect highs of 20°C (68°F) in Basel in May, with nights dropping to around 9°C (48°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows around 9°C (48°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Basel in May
The area enjoys a balanced 188 hours of sunlight, ensuring it's neither too overcast nor too sunny.If your ideal day consists of dry skies and pleasant temperatures, September typically offers the best circumstances for Basel.
Basel Temperature in May
Min Temperature
9°C (48°F)
Max Temperature
20°C (68°F)
Chance of Rain
58%
Precipitation
127 mm (5 in)
Rainy days
18 days
Humidity
72%
Sunshine
188 hours
Percentage Sunshine
43%
Basel Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Basel - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Basel typically rise from around 17°C (63°F) at the start of May to approximately 21°C (70°F) by the end. Nights are cool, with lows typically ranging from 7°C (45°F) to 11°C (52°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather records for Basel in May
Browse day-by-day weather records for Basel spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Basel historical weather extremes in May
Our historical data for Basel spans 1976 to 2026, revealing these weather extremes.
- The hottest May day on record in Basel reached 33°C (91°F) (May 26, 2026).
- Basel experienced its chilliest May day on May 4, 1987, reaching only 6°C (43°F).
- The coldest night in May in Basel was on May 5, 1979, with a minimum of -2°C (28°F).
Best Places in Switzerland in May
Find out more about the weather in Switzerland and which places have the best travel conditions in this month. See all of Switzerland in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Basel in May
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. Bring sunglasses since you'll have some sunny periods throughout the month
What To Do in Basel in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming6/10 -
Cycling9/10 -
Walking9/10 -
Camping3/10 -
Outdoor sports9/10
Basel 3-Day Forecast
More climate data for Basel
Temperature Rainfall Sunshine Humidity
See the full Basel climate overview or explore weather in Switzerland.
Popular in May
Where to go in May - average daytime high across popular destinations.
Zürich
20°C (68°F) Crans-Montana
12°C (54°F) Engelberg12°C (54°F) Nendaz12°C (54°F) Davos11°C (52°F) Saas-Fee9°C (48°F) Grindelwald10°C (50°F) Zermatt7°C (45°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
The 5 most scenic train journeys in Switzerland
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