Weather in Basel in September
Climate normals based on 10 years of historical data for Basel, Schweiz.
Average high
22°C
Average low
12°C
Rainfall
71 mm
10 rainy days
Sunshine
4.8h/day
Luftfeuchtigkeit
74%
How Hot Is Basel in September?
Late summer in Basel: 22°C afternoons, 12°C cooler nights. Temperatures climb 4°C over August's averages in Basel.
Sunshine Hours in September
Average sun and average daylight: 4.8h a day in Basel, sun up between 7:05 am and 7:40 pm.
Does It Rain In Basel In September?
Basel's September is moderately rainy — 71mm across 10 days.
Is Basel Humid In September?
Expect a humid September in Basel: 74% on average, with little overnight relief.
Wind In Basel In September
September brings gentle winds to Basel — averaging 11 kph.
Cloud Cover In Basel In September
Cloudy skies dominate Basel in September — averaging 52% cloud cover.
Cities With Similar Weather In September
Weather in Basel, month by month
| Month | High / Low | Regen | |
|---|---|---|---|
| Wetter im Januar | 5°C / 0°C | 95mm | Details → |
| Wetter im Februar | 8°C / 1°C | 67mm | Details → |
| Wetter im März | 12°C / 3°C | 80mm | Details → |
| Wetter im April | 15°C / 5°C | 83mm | Details → |
| Wetter im Mai | 19°C / 9°C | 109mm | Details → |
| Wetter im Juni | 24°C / 14°C | 93mm | Details → |
| Wetter im Juli | 26°C / 15°C | 81mm | Details → |
| Wetter im August | 26°C / 16°C | 79mm | Details → |
| Wetter im September | 22°C / 12°C | 71mm | |
| Wetter im Oktober | 17°C / 8°C | 83mm | Details → |
| Wetter im November | 10°C / 4°C | 100mm | Details → |
| Wetter im Dezember | 7°C / 1°C | 92mm | Details → |