Which municipality in canton Grisons is the sunniest?

Grono 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 →

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

Ranking

MeteoSchweiz · 2025

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

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?: Grono 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.