Fog report Mon, 12/29

Name: Fog report Mon, 12/29/2025: sunshine at the SwissMetNet stations
Creator: MeteoSwiss
License: https://creativecommons.org/licenses/by/4.0/

Fog lid at 900–1,100 m, sun above it.

Most sun: Säntis with 8 h 24 min. On the Swiss Plateau 31 of 44 weather stations saw not a single minute of sun.

Measured on Monday, December 29, 2025 · Source: MeteoSwiss, SwissMetNet stations

Station up to 1,100 mStation above 1,100 mFog lid, measured

Sun staircase · 12/29/2025 · 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, 12/29.

Stations without a minute of sun: 37

Oron828 m0 min
St. Gallen776 m0 min
Salen-Reutenen719 m0 min
Bière684 m0 min
Fribourg / Grangeneuve651 m0 min
Interlaken578 m0 min

Longest in the sun

Säntis2,501 m8 h 24 min
La Dôle1,670 m8 h 23 min
Le Moléson1,974 m8 h 22 min
Titlis3,045 m8 h 20 min

Above the fog lid: summits from 1,200 m

All measurements of Mon, 12/29

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	28 min	60 min	60 min	60 min	60 min	60 min	60 min	44 min	0 min	7 h 12 min
Titlis3,045 m	46 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	34 min	8 h 20 min
Säntis2,501 m	46 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	38 min	8 h 24 min
Gütsch, Andermatt2,286 m	0 min	56 min	60 min	60 min	60 min	60 min	60 min	60 min	28 min	7 h 24 min
Pilatus2,105 m	32 min	60 min	60 min	60 min	60 min	60 min	60 min	58 min	0 min	7 h 30 min
Le Moléson1,974 m	30 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	52 min	8 h 22 min
La Dôle1,670 m	30 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	53 min	8 h 23 min
Chasseral1,594 m	31 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	47 min	8 h 18 min
Napf1,404 m	28 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	41 min	8 h 9 min
Adelboden1,321 m	0 min	0 min	30 min	60 min	60 min	60 min	60 min	60 min	6 min	5 h 36 min
Bullet / La Frétaz1,205 m	21 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	23 min	7 h 44 min
Chaumont1,136 m	24 min	60 min	60 min	60 min	60 min	60 min	60 min	53 min	0 min	7 h 17 min
Hörnli1,133 m	17 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	37 min	7 h 54 min
La Brévine1,050 m	0 min	54 min	60 min	60 min	60 min	60 min	60 min	60 min	37 min	7 h 31 min
Plaffeien1,042 m	5 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	30 min	7 h 35 min
Engelberg1,036 m	0 min	0 min	0 min	0 min	56 min	60 min	25 min	0 min	0 min	2 h 21 min
Château-d'Oex1,028 m	0 min	11 min	60 min	60 min	60 min	60 min	60 min	60 min	18 min	6 h 29 min
La Chaux-de-Fonds1,017 m	3 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	20 min	7 h 23 min
Bantiger942 m	27 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	35 min	8 h 2 min
Einsiedeln911 m	1 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	10 min	7 h 11 min
Uetliberg854 m	0 min	3 min	55 min	60 min	60 min	60 min	60 min	56 min	3 min	5 h 57 min
Lägern845 m	0 min	0 min	0 min	0 min	0 min	0 min	6 min	12 min	0 min	18 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	0 min	10 min	35 min	19 min	32 min	50 min	0 min	2 h 26 min
Langnau i.E.744 m	0 min	0 min	22 min	60 min	60 min	60 min	60 min	49 min	0 min	5 h 11 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	4 min	43 min	60 min	60 min	60 min	42 min	0 min	0 min	4 h 29 min
Rünenberg611 m	0 min	24 min	56 min	60 min	60 min	60 min	60 min	60 min	13 min	6 h 33 min
Zürich / Fluntern604 m	0 min	0 min	0 min	0 min	0 min	0 min	25 min	46 min	0 min	1 h 11 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