Basel

Basel-Stadt, Kanton Basel-Stadt, Switzerland

Unlock Minute-by-Minute Forecast

See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.

Current Weather

21°

Mostly Clear

Feels Like: 23°

Min:

Max: 21°

The next few hours will be clear, with today reaching 21°C and dropping to 8°C. The coming days will be mostly clear starting in the evening.

Does this forecast seem accurate?

Unlock Historical Data

Compare today's weather with yesterday's data and track temperature trends over time.

Hourly Forecast

21° 21° 21° 21° 19° 17° 16° 14° 13° 12° 11° 11° 14° 17° 19° 21°
3pm
4pm
5pm
6pm
7pm
8pm
9pm
10pm
11pm
12am
1am
2am
3am
4am
5am
6am
7am
8am
9am
10am
11am
12pm
1pm
2pm
Today
Tomorrow

Daylight Hours

07:24

Sunrise

19:18

Sunset

11 hours 54 minutes of sunlight today

Moon

Waxing Gibbous

17:50

Moonrise

02:08

Moonset

Daily Forecast

Today

21°

Wednesday

23°

Thursday

20°

Friday

21°

Saturday

27°

Sunday

28°

Monday

16°
27°

Tuesday

14°
27°

Wednesday

17°
27°

Thursday

16°
20°

Air Quality Data Available

Upgrade to access real-time air quality data for Basel.

UV Index

Wear sunscreen
4 Moderate
Low Extreme

Humidity

39% Dry
Low High

Current stargazing conditions?

See sky darkness, moon phase, and the best viewing window for Basel.

View stargazing score

Weather in Basel today, September 22, 2026

Sunshine leads the day in Basel on September 22, 2026, with a patch of cloud building near 15:00. The broader outlook stays fair despite that temporary thickening.

Temperatures climb from an overnight low near 7°C toward a daytime high of about 21°C. Expect humidity between 39% and 67%, most humid near 23:00. Winds stay light, near 3.0 km/h by 18:00, so the day feels still more than breezy.

Afternoon conditions open up, holding cloud close to 38% near 15:00. The day finishes on a milder, brighter note. Visibility stays generally good near 41.7 km on average, though it can drop toward 39.7 km in thicker cloud or showers. Sunrise is at 07:24 and sunset at 19:18, giving 11 hours 54 minutes of sunlight today.

Overall, Basel on September 22, 2026 favours outdoor plans under mostly open skies, with a comfortable high near 21°C.

Frequently asked questions about weather in Basel

How warm does it get in Basel?

The warmest month in Basel is July, with average high temperatures of 25°C. The average temperature during this period is around 20°C.

How cold does it get in Basel?

The coldest month in Basel is January, with average low temperatures of -1°C. The average temperature during this period is around 2°C.

What is the wettest time of year in Basel?

The wettest month in Basel is June, with an average of 133mm of precipitation.

What is the driest time of year in Basel?

The driest month in Basel is February, with an average of 75mm of precipitation.

View full climate insights for Basel →

Airpult

Get accurate weather forecasts worldwide with real-time updates and severe weather alerts. Covering 6M+ locations with precise, reliable weather data.

© 2026 Samuenti GmbH. All rights reserved.

gb English
Metric (°C, km/h)