Which municipality in canton Solothurn is the warmest?

Bättwil is the warmest municipality in canton Solothurn, at 11.8 °C annual mean (2025).

Where does the temperature data come from?

From the geographically nearest MeteoSwiss station (25 km at most). These are station readings, not measurements at the municipality centre — the distance is disclosed transparently.

← Canton Solothurn overview

Ranking · Data 2025 · Source: BFS

The warmest municipalities in canton Solothurn (2025)

National ranking →

Bättwil is the warmest municipality in canton Solothurn: 11.8 °C annual mean (2025). Next come Breitenbach (11.8 °C) and Zullwil (11.8 °C). Source: MeteoSwiss, nearest station.

Ranking

MeteoSchweiz · 2025

Rank	Municipality	Avg. temp.	Residents
1	Bättwil	11.8 °C	1'191
2	Breitenbach	11.8 °C	4'304
3	Zullwil	11.8 °C	675
4	Nunningen	11.8 °C	1'973
5	Hochwald	11.8 °C	1'266
6	Dornach	11.8 °C	6'862
7	Metzerlen-Mariastein	11.8 °C	973
8	Hofstetten-Flüh	11.8 °C	3'401
9	Rodersdorf	11.8 °C	1'418
10	Gempen	11.8 °C	932
11	Himmelried	11.8 °C	977
12	Büren	11.8 °C	1'055
13	Witterswil	11.8 °C	1'467
14	Nuglar-St. Pantaleon	11.8 °C	1'546
15	Fehren	11.8 °C	595
16	Meltingen	11.8 °C	645
17	Seewen	11.8 °C	1'064
18	Niedergösgen	10.9 °C	4'197
19	Dulliken	10.9 °C	5'396
20	Olten	10.9 °C	18'715
21	Erlinsbach	10.9 °C	3'691
22	Walterswil	10.9 °C	749
23	Däniken	10.9 °C	3'041
24	Schönenwerd	10.9 °C	5'201
25	Rickenbach	10.9 °C	1'198
26	Stüsslingen	10.9 °C	1'257
27	Trimbach	10.9 °C	6'667
28	Eppenberg-Wöschnau	10.9 °C	326
29	Starrkirch-Wil	10.9 °C	1'956
30	Wangen bei Olten	10.9 °C	5'539
31	Lostorf	10.9 °C	4'088
32	Obergösgen	10.9 °C	2'457
33	Winznau	10.9 °C	2'058
34	Gretzenbach	10.9 °C	2'800
35	Biezwil	10.6 °C	354
36	Günsberg	10.6 °C	1'185
37	Welschenrohr-Gänsbrunnen	10.6 °C	1'205
38	Lüterkofen-Ichertswil	10.6 °C	904
39	Messen	10.6 °C	1'496
40	Langendorf	10.6 °C	3'858
41	Bellach	10.6 °C	5'453
42	Unterramsern	10.6 °C	220
43	Oberdorf	10.6 °C	1'859
44	Grenchen	10.6 °C	18'295
45	Rüttenen	10.6 °C	1'541
46	Solothurn	10.6 °C	16'855
47	Balm bei Günsberg	10.6 °C	226
48	Lüsslingen-Nennigkofen	10.6 °C	1'140
49	Buchegg	10.6 °C	2'926
50	Bettlach	10.6 °C	4'978
51	Lommiswil	10.6 °C	1'630
52	Riedholz	10.6 °C	2'313
53	Schnottwil	10.6 °C	1'150
54	Feldbrunnen-St. Niklaus	10.6 °C	1'027
55	Selzach	10.6 °C	3'682
56	Kienberg	10.5 °C	528
57	Wisen	10.5 °C	443
58	Hauenstein-Ifenthal	10.5 °C	325
59	Wolfwil	10.4 °C	2'401
60	Herbetswil	10.4 °C	605
61	Laupersdorf	10.4 °C	1'897
62	Kleinlützel	10.4 °C	1'197
63	Fulenbach	10.4 °C	1'808
64	Härkingen	10.4 °C	1'767
65	Kappel	10.4 °C	3'511
66	Balsthal	10.4 °C	6'501
67	Gunzgen	10.4 °C	1'712
68	Büsserach	10.4 °C	2'431
69	Egerkingen	10.4 °C	4'300
70	Neuendorf	10.4 °C	2'404
71	Boningen	10.4 °C	807
72	Beinwil	10.4 °C	274
73	Mümliswil-Ramiswil	10.4 °C	2'451
74	Grindel	10.4 °C	517
75	Holderbank	10.4 °C	753
76	Kammersrohr	10.4 °C	31
77	Hägendorf	10.4 °C	5'277
78	Oberbuchsiten	10.4 °C	2'386
79	Bärschwil	10.4 °C	794
80	Aedermannsdorf	10.4 °C	599
81	Matzendorf	10.4 °C	1'374
82	Oensingen	10.4 °C	6'636
83	Erschwil	10.4 °C	960
84	Kestenholz	10.4 °C	1'881
85	Niederbuchsiten	10.4 °C	1'301
86	Kriegstetten	10.1 °C	1'427
87	Flumenthal	10.1 °C	1'043
88	Lohn-Ammannsegg	10.1 °C	2'976
89	Aeschi	10.1 °C	1'329
90	Deitingen	10.1 °C	2'340
91	Luterbach	10.1 °C	3'640
92	Hüniken	10.1 °C	160
93	Zuchwil	10.1 °C	9'452
94	Etziken	10.1 °C	1'070
95	Recherswil	10.1 °C	2'180
96	Subingen	10.1 °C	3'285
97	Drei Höfe	10.1 °C	742
98	Hubersdorf	10.1 °C	717
99	Derendingen	10.1 °C	7'008
100	Bolken	10.1 °C	593
101	Gerlafingen	10.1 °C	5'794
102	Horriwil	10.1 °C	911
103	Obergerlafingen	10.1 °C	1'262
104	Biberist	10.1 °C	9'345

How we measure this

MeteoSchweiz

Mean annual temperature from the nearest MeteoSwiss weather station (at most 25 km from the municipality), averaged over the available measurement years up to 2025. The station distance is shown on every municipality page; in mountainous terrain temperature varies strongly with altitude.

Frequently asked questions

Which municipality in canton Solothurn is the warmest?: Bättwil is the warmest municipality in canton Solothurn, at 11.8 °C annual mean (2025).
Where does the temperature data come from?: From the geographically nearest MeteoSwiss station (25 km at most). These are station readings, not measurements at the municipality centre — the distance is disclosed transparently.