Fog report Thu, 18/12

Name: Fog report Thu, 18/12/2025: sunshine at the SwissMetNet stations
Creator: MeteoSwiss
License: https://creativecommons.org/licenses/by/4.0/

Fog lid at 600 m, sun above it.

Most sun: Säntis with 8 h 17 min. On the Swiss Plateau 12 of 44 weather stations saw not a single minute of sun.

Measured on Thursday, 18 December 2025 · Source: MeteoSwiss, SwissMetNet stations

Station up to 600 mStation above 600 mFog lid, measured

Sun staircase · 18/12/2025 · 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, 18/12.

Stations without a minute of sun: 12

Payerne490 m0 min
Neuchâtel485 m0 min
Mühleberg480 m0 min
Cham443 m0 min
Güttingen440 m0 min
Schaffhausen438 m0 min

Longest in the sun

Säntis2,501 m8 h 17 min
Titlis3,045 m8 h 12 min
Napf1,404 m7 h 47 min
Bantiger942 m7 h 35 min

Above the fog lid: summits from 700 m

All measurements of Thu, 18/12

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 level.

Station · hour ending	9	10	11	12	13	14	15	16	17	Total
Jungfraujoch3,571 m	32 min	60 min	60 min	60 min	60 min	60 min	60 min	38 min	0 min	7 h 10 min
Titlis3,045 m	47 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	25 min	8 h 12 min
Säntis2,501 m	49 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	28 min	8 h 17 min
Gütsch, Andermatt2,286 m	0 min	18 min	60 min	37 min	23 min	42 min	57 min	58 min	14 min	5 h 9 min
Pilatus2,105 m	35 min	60 min	60 min	60 min	60 min	60 min	60 min	53 min	0 min	7 h 28 min
Le Moléson1,974 m	33 min	60 min	60 min	60 min	60 min	60 min	60 min	56 min	2 min	7 h 31 min
La Dôle1,670 m	0 min	22 min	53 min	39 min	60 min	46 min	41 min	7 min	20 min	4 h 48 min
Chasseral1,594 m	2 min	4 min	5 min	43 min	60 min	58 min	58 min	26 min	13 min	4 h 29 min
Napf1,404 m	33 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	14 min	7 h 47 min
Adelboden1,321 m	0 min	0 min	35 min	60 min	60 min	60 min	60 min	60 min	0 min	5 h 35 min
Bullet / La Frétaz1,205 m	0 min	43 min	58 min	60 min	60 min	60 min	60 min	42 min	0 min	6 h 23 min
Chaumont1,136 m	2 min	44 min	50 min	60 min	60 min	60 min	43 min	13 min	0 min	5 h 32 min
Hörnli1,133 m	0 min	58 min	60 min	60 min	60 min	60 min	60 min	60 min	21 min	7 h 19 min
La Brévine1,050 m	0 min	50 min	55 min	60 min	58 min	48 min	60 min	51 min	9 min	6 h 31 min
Plaffeien1,042 m	10 min	60 min	60 min	60 min	60 min	60 min	60 min	59 min	0 min	7 h 9 min
Engelberg1,036 m	0 min	0 min	0 min	0 min	60 min	60 min	19 min	0 min	0 min	2 h 19 min
Château-d'Oex1,028 m	0 min	16 min	60 min	60 min	60 min	60 min	60 min	60 min	2 min	6 h 18 min
La Chaux-de-Fonds1,017 m	7 min	53 min	51 min	60 min	57 min	52 min	18 min	47 min	0 min	5 h 45 min
Bantiger942 m	31 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	4 min	7 h 35 min
Einsiedeln911 m	5 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	4 min	7 h 9 min
Uetliberg854 m	38 min	60 min	60 min	60 min	60 min	60 min	60 min	50 min	0 min	7 h 28 min
Lägern845 m	27 min	60 min	60 min	60 min	60 min	60 min	60 min	59 min	0 min	7 h 26 min
Oron828 m	11 min	60 min	60 min	60 min	60 min	60 min	60 min	38 min	4 min	6 h 53 min
St. Gallen776 m	0 min	30 min	60 min	60 min	60 min	60 min	60 min	4 min	0 min	5 h 34 min
Frutigen756 m	0 min	0 min	38 min	60 min	60 min	60 min	60 min	45 min	0 min	5 h 23 min
Langnau i.E.744 m	13 min	60 min	60 min	60 min	60 min	60 min	60 min	42 min	0 min	6 h 55 min
Salen-Reutenen719 m	12 min	60 min	60 min	60 min	60 min	60 min	60 min	60 min	7 min	7 h 19 min
Bière684 m	4 min	58 min	0 min	0 min	17 min	57 min	60 min	20 min	0 min	3 h 36 min
Fribourg / Grangeneuve651 m	13 min	60 min	60 min	60 min	60 min	60 min	60 min	46 min	3 min	7 h 2 min
Ebnat-Kappel623 m	15 min	60 min	60 min	60 min	60 min	60 min	35 min	0 min	0 min	5 h 50 min
Rünenberg611 m	18 min	60 min	60 min	60 min	60 min	60 min	60 min	43 min	2 min	7 h 3 min
Zürich / Fluntern604 m	11 min	45 min	19 min	33 min	60 min	60 min	60 min	60 min	15 min	6 h 3 min
Fahy596 m	3 min	32 min	11 min	51 min	52 min	34 min	60 min	18 min	0 min	4 h 21 min

no sun1–19 min20–44 min45–60 minMeasured fog levelMeasurements: 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