Jaun Pass
The Jaun Pass is a mountain pass at 1509 m (Fribourg, Bern). Access: road; usually open toute l'année. The weather above is computed at the exact pass altitude; the “Snow, wind and freezing level” section gives 7-day snowfall, gusts and the snow line — check it before crossing by car, motorbike or bike.
Climate of Jaun Pass: 1991–2020 normals
In Jaun Pass (1509 m), the mean annual temperature is 4.9 °C. The warmest month is July (13.6 °C on average) and the coldest January (−3.2 °C). About 1387 mm of precipitation falls per year, peaking in July (165 mm) with a minimum in February (74 mm). The sun shines for about 1570 hours a year, mostly in July (184 h). On average there are 131 frost days per year. The mean monthly maximum reaches 25.8 °C and the absolute minimum −14.9 °C.
Mean monthly precipitation (mm) — bar height relative to the wettest month.
| Month | Mean T | Abs. max | Abs. min | Precip. (mm) | Sunshine (h) | Frost days | Summer days |
|---|---|---|---|---|---|---|---|
| Jan | −3.2 °C | 8.5 °C | −14.9 °C | 85 | 89 | 26 | 0 |
| Feb | −2.8 °C | 9.4 °C | −14.4 °C | 74 | 100 | 24 | 0 |
| Mar | 0.7 °C | 13.4 °C | −10.9 °C | 85 | 132 | 20 | 0 |
| Apr | 4.1 °C | 17.1 °C | −7.1 °C | 94 | 143 | 12 | 0 |
| May | 8.1 °C | 21.2 °C | −2.3 °C | 150 | 155 | 3 | 0 |
| Jun | 11.7 °C | 24.7 °C | 1.1 °C | 148 | 168 | 0 | 2 |
| Jul | 13.6 °C | 25.8 °C | 3.9 °C | 165 | 184 | 0 | 3 |
| Aug | 13.3 °C | 25.4 °C | 3.1 °C | 163 | 172 | 0 | 3 |
| Sep | 9.5 °C | 20.6 °C | −0.1 °C | 115 | 146 | 0 | 0 |
| Oct | 5.7 °C | 17.6 °C | −4.4 °C | 106 | 119 | 6 | 0 |
| Nov | 0.7 °C | 13.1 °C | −10.0 °C | 94 | 83 | 16 | 0 |
| Dec | −2.3 °C | 9.0 °C | −13.7 °C | 107 | 79 | 24 | 0 |
| Year | 4.9 °C | 25.8 °C | −14.9 °C | 1387 | 1570 | 131 | 8 |
Source: MeteoSwiss open data (1991–2020 normals) — stations Plaffeien (19 km, 1042 m), Château-d'Oex (19 km, 1028 m), Adelboden (20 km, 1321 m), adjusted to the elevation of Jaun Pass (1509 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Passes & summits
- Weather Stockhorn (20 km · 2190 m)
- Weather Le Moléson (25 km · 2002 m)
- Weather Niesen (25 km · 2362 m)
- Weather Col du Pillon (28 km · 1546 m)
- Weather Glacier 3000 (Scex Rouge) (28 km · 2971 m)
- Weather Col des Mosses (28 km · 1445 m)
Nearby municipalities
- Weather Boltigen (5 km)
- Weather Zweisimmen (5 km)
- Weather Saanen (5 km)
- Weather Jaun (10 km)
- Weather Val-de-Charmey (11 km)
- Weather Plasselb (11 km)
- Weather St. Stephan (12 km)
- Weather Oberwil im Simmental (13 km)
Passes & summits Weather Boltigen
Frequently asked questions about the weather: Jaun Pass
Is the Jaun Pass open?
The Jaun Pass is usually accessible toute l'année. The official status depends on snow and roadworks (check TCS or the canton); the snow forecast above helps anticipate closures.
How cold is it at the Jaun Pass?
Expect about 6 °C less than in the lowlands (mean lapse rate 0.6 °C per 100 m). The mean annual temperature at 1509 m is about 4.9 °C; the coldest month is January (−3.2 °C).
Can it snow at the Jaun Pass in summer?
Yes: above 2000 m, snow can fall in any season during cold spells. Watch the freezing level and the forecast snowfall in the dedicated section.
What is the warmest month in Jaun Pass?
The warmest month in Jaun Pass is July, averaging 13.6 °C (1991–2020 normal). The coldest is January at −3.2 °C.
How much does it rain in Jaun Pass per year?
Jaun Pass receives about 1387 mm of precipitation a year. The wettest month is July (165 mm), the driest February (74 mm).
When is the best time to visit Jaun Pass?
For warmth and sunshine: July (13.6 °C on average, 184 h of sun). The coldest month is January (−3.2 °C). Check the 15-day forecast above for your dates.