Which municipality in canton Grisons is the sunniest?

Lostallo is the sunniest municipality in canton Grisons, at 59.5% relative sunshine (2025).

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.

← Canton Grisons overview

Ranking · Data 2025 · Source: BFS

The sunniest municipalities in canton Grisons (2025)

National ranking →

Lostallo is the sunniest municipality in canton Grisons: 59.5% of possible sunshine duration (2025). Next come Roveredo (59.5%) and Buseno (59.5%). Source: MeteoSwiss, nearest station.

Ranking

MeteoSchweiz · 2025

Rank	Municipality	Sunshine	Residents
1	Lostallo	59.5%	850
2	Roveredo	59.5%	2'625
3	Buseno	59.5%	91
4	Santa Maria in Calanca	59.5%	119
5	San Vittore	59.5%	912
6	Grono	59.5%	1'556
7	Castaneda	59.5%	262
8	Cama	59.5%	691
9	Calanca	59.5%	211
10	Brusio	56.6%	1'105
11	Pontresina	56.3%	2'077
12	Madulain	56.3%	197
13	Celerina/Schlarigna	56.3%	1'411
14	Bever	56.3%	607
15	Zuoz	56.3%	1'218
16	St. Moritz	56.3%	4'926
17	Samedan	56.3%	2'913
18	La Punt Chamues-ch	56.3%	732
19	Silvaplana	56.3%	1'089
20	Sils im Engadin/Segl	55.6%	708
21	Zillis-Reischen	54.6%	419
22	Tschappina	54.6%	140
23	Muntogna da Schons	54.6%	371
24	Sufers	54.6%	151
25	Andeer	54.6%	926
26	Ferrera	54.6%	82
27	Bregaglia	54%	1'578
28	Val Müstair	54%	1'422
29	Rothenbrunnen	53.9%	312
30	Chur	53.9%	38'949
31	Rhäzüns	53.9%	1'633
32	Felsberg	53.9%	2'833
33	Domat/Ems	53.9%	8'286
34	Churwalden	53.9%	2'147
35	Tamins	53.9%	1'215
36	Bonaduz	53.9%	3'533
37	Trin	53.9%	1'525
38	Poschiavo	53%	3'525
39	S-chanf	52.6%	706
40	Ilanz/Glion	52.5%	5'030
41	Sagogn	52.5%	766
42	Schluein	52.5%	612
43	Lumnezia	52.5%	2'072
44	Safiental	52.5%	963
45	Obersaxen Mundaun	52.5%	1'148
46	Vals	51.5%	949
47	Rheinwald	51.5%	576
48	Cazis	51.4%	2'416
49	Urmein	51.4%	163
50	Albula/Alvra	51.4%	1'313
51	Rongellen	51.4%	61
52	Scharans	51.4%	838
53	Flerden	51.4%	254
54	Lantsch/Lenz	51.4%	528
55	Masein	51.4%	532
56	Domleschg	51.4%	2'219
57	Thusis	51.4%	3'459
58	Fürstenau	51.4%	349
59	Sils im Domleschg	51.4%	966
60	Vaz/Obervaz	51.4%	2'742
61	Mesocco	50.8%	1'420
62	Soazza	50.8%	332
63	Rossa	50.8%	161
64	Bergün Filisur	50.5%	901
65	Disentis/Mustér	49.4%	2'080
66	Sumvitg	49.4%	1'079
67	Medel	49.4%	328
68	Trun	49.4%	1'154
69	Tujetsch	49.4%	1'171
70	Landquart	49.3%	9'191
71	Maienfeld	49.3%	3'193
72	Malans	49.3%	2'527
73	Untervaz	49.3%	2'675
74	Zizers	49.3%	3'589
75	Jenins	49.3%	948
76	Fläsch	48.2%	868
77	Schmitten	48.1%	209
78	Arosa	48.1%	3'143
79	Klosters	46.8%	4'473
80	Davos	46.8%	10'800
81	Scuol	46.3%	4'572
82	Valsot	46.3%	811
83	Zernez	46.3%	1'579
84	Avers	46%	168
85	Surses	46%	2'424
86	Laax	44.5%	2'112
87	Breil/Brigels	44.5%	1'713
88	Falera	44.5%	627
89	Flims	44.5%	2'939

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

Which municipality in canton Grisons is the sunniest?: Lostallo is the sunniest municipality in canton Grisons, at 59.5% relative sunshine (2025).
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.