Fog report Mon, 12/1

Name: Fog report Mon, 12/1/2025: sunshine at the SwissMetNet stations
Creator: MeteoSwiss
License: https://creativecommons.org/licenses/by/4.0/

Fog lid at 1,300–1,700 m, sun above it.

Most sun: Säntis with 8 h 5 min. On the Swiss Plateau 39 of 44 weather stations saw not a single minute of sun.

Measured on Monday, December 1, 2025 · Source: MeteoSwiss, SwissMetNet stations

Station up to 1,700 mStation above 1,700 mFog lid, measured

Sun staircase · 12/1/2025 · measured

Sun by altitude at 73 weather stations

Each dot is a MeteoSwiss station: up, how high it lies; right, how long it measured sun on Mon, 12/1.

Stations without a minute of sun: 44

Bullet / La Frétaz1,205 m0 min
Bantiger942 m0 min
Uetliberg854 m0 min
Lägern845 m0 min
Oron828 m0 min
St. Gallen776 m0 min

Longest in the sun

Säntis2,501 m8 h 5 min
Titlis3,045 m8 h
Pilatus2,105 m7 h 12 min
Chasseral1,594 m6 h 22 min

Above the fog lid: summits from 1,800 m

All measurements of Mon, 12/1

Minutes of sun per hour at 73 MeteoSwiss weather stations, sorted by height. Each cell is an hour; the dashed line is the measured fog boundary.

Station · hour ending	9	10	11	12	13	14	15	16	17	Total
Jungfraujoch3,571 m	0 min	0 min	38 min	60 min	60 min	60 min	60 min	28 min	0 min	5 h 6 min
Titlis3,045 m	55 min	58 min	60 min	60 min	60 min	60 min	60 min	60 min	7 min	8 h
Säntis2,501 m	59 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	6 min	8 h 5 min
Gütsch, Andermatt2,286 m	0 min	0 min	0 min	3 min	4 min	1 min	17 min	57 min	7 min	1 h 29 min
Pilatus2,105 m	52 min	56 min	60 min	60 min	60 min	60 min	60 min	24 min	0 min	7 h 12 min
Le Moléson1,974 m	0 min	6 min	59 min	58 min	58 min	41 min	54 min	60 min	29 min	6 h 5 min
La Dôle1,670 m	0 min	5 min	44 min	60 min	11 min	24 min	18 min	57 min	25 min	4 h 4 min
Chasseral1,594 m	32 min	60 min	60 min	60 min	46 min	25 min	52 min	32 min	15 min	6 h 22 min
Napf1,404 m	2 min	14 min	48 min	14 min	0 min	0 min	0 min	0 min	7 min	1 h 25 min
Adelboden1,321 m	0 min	0 min	44 min	60 min	37 min	8 min	21 min	47 min	0 min	3 h 37 min
Bullet / La Frétaz1,205 m	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min
Chaumont1,136 m	0 min	4 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	4 min
Hörnli1,133 m	48 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	48 min
La Brévine1,050 m	0 min	1 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	1 min
Plaffeien1,042 m	0 min	1 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	1 min
Engelberg1,036 m	0 min	0 min	0 min	36 min	55 min	46 min	0 min	0 min	0 min	2 h 17 min
Château-d'Oex1,028 m	0 min	0 min	0 min	0 min	47 min	57 min	39 min	55 min	0 min	3 h 18 min
La Chaux-de-Fonds1,017 m	0 min	0 min	0 min	25 min	29 min	41 min	13 min	0 min	0 min	1 h 48 min
Bantiger942 m	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min
Einsiedeln911 m	0 min	0 min	0 min	0 min	8 min	0 min	0 min	0 min	0 min	8 min
Uetliberg854 m	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min
Lägern845 m	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min
Oron828 m	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min
St. Gallen776 m	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min
Frutigen756 m	0 min	3 min	60 min	60 min	47 min	13 min	17 min	16 min	0 min	3 h 36 min
Langnau i.E.744 m	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min
Salen-Reutenen719 m	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min
Bière684 m	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min
Fribourg / Grangeneuve651 m	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min
Ebnat-Kappel623 m	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min
Rünenberg611 m	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min
Zürich / Fluntern604 m	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min

no sun1–19 min20–44 min45–60 minMeasured fog boundaryMeasurements: MeteoSwiss, SwissMetNet

For the press

Chart and measurements are free to use with a link to this page (CC BY 4.0). Source of the measurements: MeteoSwiss, SwissMetNet stations.

Measurements as CSV

More sea-of-fog days

The days the MeteoSwiss network measured a sea of fog in at least half of the hours with the sun high – each with all its measurements.

Fog level and sea of fog today

Source: MeteoSwiss