Fog report Thu, 04/12

Name: Fog report Thu, 04/12/2025: sunshine at the SwissMetNet stations
Creator: MeteoSwiss
License: https://creativecommons.org/licenses/by/4.0/

Fog lid at 1,400–1,600 m, sun above it.

Most sun: Einsiedeln with 6 h 41 min. On the Swiss Plateau 28 of 44 weather stations saw not a single minute of sun.

Measured on Thursday 4 December 2025 · Source: MeteoSwiss, SwissMetNet stations

Station up to 1,600 mStation above 1,600 mFog lid, measured

Sun staircase · 04/12/2025 · 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 Thu, 04/12.

Stations without a minute of sun: 38

Jungfraujoch3,571 m0 min
Bullet / La Frétaz1,205 m0 min
Chaumont1,136 m0 min
Plaffeien1,042 m0 min
Bantiger942 m0 min
Lägern845 m0 min

Longest in the sun

Einsiedeln911 m6 h 41 min
Pilatus2,105 m6 h 5 min
Le Moléson1,974 m5 h 58 min
Säntis2,501 m5 h 29 min

Above the fog lid: summits from 1,700 m

All measurements of Thu, 04/12

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	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min
Titlis3,045 m	23 min	52 min	58 min	60 min	23 min	8 min	1 min	0 min	0 min	3 h 45 min
Säntis2,501 m	52 min	58 min	49 min	60 min	59 min	41 min	10 min	0 min	0 min	5 h 29 min
Gütsch, Andermatt2,286 m	0 min	0 min	0 min	0 min	0 min	1 min	0 min	0 min	0 min	1 min
Pilatus2,105 m	27 min	60 min	60 min	60 min	60 min	60 min	38 min	0 min	0 min	6 h 5 min
Le Moléson1,974 m	25 min	26 min	60 min	60 min	56 min	26 min	50 min	55 min	0 min	5 h 58 min
La Dôle1,670 m	0 min	5 min	44 min	60 min	60 min	60 min	10 min	0 min	0 min	3 h 59 min
Chasseral1,594 m	0 min	0 min	0 min	0 min	0 min	38 min	44 min	40 min	0 min	2 h 2 min
Napf1,404 m	26 min	60 min	60 min	29 min	30 min	57 min	23 min	7 min	0 min	4 h 52 min
Adelboden1,321 m	0 min	0 min	42 min	60 min	27 min	6 min	0 min	5 min	0 min	2 h 20 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	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min
Hörnli1,133 m	26 min	31 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	57 min
La Brévine1,050 m	0 min	0 min	0 min	1 min	35 min	60 min	60 min	23 min	0 min	2 h 59 min
Plaffeien1,042 m	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min	0 min
Engelberg1,036 m	0 min	0 min	0 min	18 min	5 min	5 min	15 min	0 min	0 min	43 min
Château-d'Oex1,028 m	0 min	21 min	60 min	60 min	60 min	27 min	11 min	53 min	0 min	4 h 52 min
La Chaux-de-Fonds1,017 m	2 min	0 min	0 min	0 min	45 min	60 min	60 min	23 min	0 min	3 h 10 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	25 min	58 min	60 min	60 min	60 min	60 min	60 min	18 min	0 min	6 h 41 min
Uetliberg854 m	6 min	0 min	0 min	0 min	0 min	0 min	9 min	0 min	0 min	15 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	0 min	47 min	39 min	38 min	11 min	14 min	0 min	0 min	2 h 29 min
Langnau i.E.744 m	0 min	0 min	0 min	0 min	4 min	4 min	13 min	0 min	0 min	21 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	5 min	0 min	0 min	5 min
Fribourg / Grangeneuve651 m	0 min	0 min	0 min	0 min	0 min	0 min	0 min	2 min	0 min	2 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	1 min	10 min	23 min	7 min	41 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