What does relative sunshine duration mean?

The share of actual sunshine hours against the maximum possible. It makes places with short winter days fairly comparable with very sunny locations.

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National ranking · Data 2025 · Source: BFS

The sunniest municipalities in Switzerland (2025)

Swiss municipality rankings →

Grimisuat (VS) is the sunniest municipality in Switzerland: 62.5% of possible sunshine duration (2025). Next come Mont-Noble (62.5%) and Savièse (62.5%). Source: MeteoSwiss.

Top 100

MeteoSchweiz · 2025

Rank	Municipality	Sunshine	Canton	Residents
1	Grimisuat	62.5%	VS	3'906
2	Mont-Noble	62.5%	VS	1'174
3	Savièse	62.5%	VS	8'182
4	Vétroz	62.5%	VS	6'604
5	Sion	62.5%	VS	36'624
6	Veysonnaz	62.5%	VS	621
7	Vex	62.5%	VS	1'929
8	Ardon	62.5%	VS	3'709
9	Conthey	62.5%	VS	9'073
10	Leytron	62.5%	VS	3'357
11	Chamoson	62.5%	VS	4'291
12	Nendaz	62.5%	VS	7'196
13	Hérémence	62.5%	VS	1'491
14	Täsch	62.4%	VS	1'366
15	Zermatt	62.4%	VS	6'023
16	Randa	62.4%	VS	461
17	Agarn	62%	VS	729
18	Guttet-Feschel	62%	VS	440
19	Lalden	62%	VS	733
20	Baltschieder	62%	VS	1'367
21	Visperterminen	62%	VS	1'324
22	Naters	62%	VS	10'605
23	Steg-Hohtenn	62%	VS	1'691
24	Ergisch	62%	VS	184
25	Bürchen	62%	VS	766
26	Eischoll	62%	VS	453
27	Visp	62%	VS	8'483
28	Eggerberg	62%	VS	329
29	Brig-Glis	62%	VS	13'976
30	Raron	62%	VS	2'002
31	Gampel-Bratsch	62%	VS	2'167
32	Niedergesteln	62%	VS	750
33	Zeneggen	62%	VS	324
34	Turtmann-Unterems	62%	VS	1'191
35	Unterbäch	62%	VS	483
36	Ausserberg	62%	VS	637
37	Bissone	60.4%	TI	955
38	Gravesano	60.4%	TI	1'365
39	Tresa	60.4%	TI	3'129
40	Arogno	60.4%	TI	955
41	Grancia	60.4%	TI	455
42	Neggio	60.4%	TI	317
43	Paradiso	60.4%	TI	4'832
44	Porza	60.4%	TI	1'679
45	Manno	60.4%	TI	1'340
46	Agno	60.4%	TI	4'536
47	Lamone	60.4%	TI	1'766
48	Cadempino	60.4%	TI	1'580
49	Savosa	60.4%	TI	2'245
50	Cademario	60.4%	TI	793
51	Ponte Capriasca	60.4%	TI	1'926
52	Alto Malcantone	60.4%	TI	1'386
53	Magliaso	60.4%	TI	1'621
54	Origlio	60.4%	TI	1'529
55	Vernate	60.4%	TI	631
56	Lugano	60.4%	TI	63'495
57	Caslano	60.4%	TI	4'363
58	Pura	60.4%	TI	1'358
59	Collina d'Oro	60.4%	TI	4'893
60	Aranno	60.4%	TI	350
61	Morcote	60.4%	TI	707
62	Bioggio	60.4%	TI	2'791
63	Massagno	60.4%	TI	6'676
64	Melide	60.4%	TI	1'783
65	Sorengo	60.4%	TI	2'139
66	Canobbio	60.4%	TI	2'396
67	Cureglia	60.4%	TI	1'489
68	Bedano	60.4%	TI	1'496
69	Vezia	60.4%	TI	2'045
70	Comano	60.4%	TI	2'183
71	Muzzano	60.4%	TI	800
72	Vico Morcote	60.4%	TI	407
73	Bellinzona	60%	TI	44'743
74	Torricella-Taverne	60%	TI	3'089
75	Tesserete	60%	TI	6'760
76	Mezzovico-Vira	60%	TI	1'368
77	Monteceneri	60%	TI	4'683
78	Cugnasco-Gerra	60%	TI	2'862
79	Sant'Antonino	60%	TI	2'646
80	Isone	60%	TI	394
81	Lavertezzo	60%	TI	1'238
82	Cadenazzo	60%	TI	3'111
83	Ronco sopra Ascona	59.9%	TI	524
84	Brissago	59.9%	TI	1'619
85	Ascona	59.9%	TI	5'381
86	Gambarogno	59.9%	TI	5'086
87	Centovalli	59.9%	TI	1'098
88	Losone	59.9%	TI	6'766
89	Riviera	59.8%	TI	4'262
90	Grono	59.5%	GR	1'556
91	Arbedo-Castione	59.5%	TI	5'108
92	Cama	59.5%	GR	691
93	Lostallo	59.5%	GR	850
94	Roveredo	59.5%	GR	2'625
95	Lumino	59.5%	TI	1'614
96	Buseno	59.5%	GR	91
97	Santa Maria in Calanca	59.5%	GR	119
98	San Vittore	59.5%	GR	912
99	Castaneda	59.5%	GR	262
100	Calanca	59.5%	GR	211

How we measure this

MeteoSchweiz

Relative sunshine duration (actual as a share of astronomically possible sunshine) from the nearest MeteoSwiss station, at most 25 km away, averaged up to 2025. The relative figure is topography-fair because it accounts for shorter winter days.

Frequently asked questions

What does relative sunshine duration mean?: The share of actual sunshine hours against the maximum possible. It makes places with short winter days fairly comparable with very sunny locations.