Basel-Stadt weather in September 2025
Mon
Tue
Wed
Thu
Fri
Sat
Sun
1 September
+21°+14°
2 September
+22°+13°
3 September
+24°+13°
4 September
+25°+15°
5 September
+24°+15°
6 September
+23°+14°
7 September
+23°+14°
8 September
+23°+14°
9 September
+23°+14°
10 September
+24°+14°
11 September
+23°+13°
12 September
+23°+13°
13 September
+23°+14°
14 September
+22°+13°
15 September
+21°+13°
16 September
+21°+12°
17 September
+20°+13°
18 September
+19°+12°
19 September
+18°+11°
20 September
+20°+10°
21 September
+22°+10°
22 September
+21°+11°
23 September
+21°+11°
24 September
+20°+10°
25 September
+20°+11°
26 September
+19°+11°
27 September
+20°+11°
28 September
+20°+11°
29 September
+19°+11°
30 September
+19°+11°
1 October
+19°+11°
2 October
+19°+10°
3 October
+19°+11°
4 October
+20°+11°
5 October
+19°+11°
Forecast in other regions
Zurich
+14°
Geneva
+21°
Basel
+17°
Lausanne
+20°
Bern
+17°
Winterthur
+14°
Lucerne
+16°
Sankt Gallen
+14°
Lugano
+19°
Biel
+16°
Thun
+16°
Koniz
+17°
La Chaux-de-Fonds
+13°
Schaffhausen
+13°
Chur
+15°
Rapperswil
+15°
Fribourg
+17°
Neuchatel
+17°
Emmen
+16°
Zug
+15°
