San Bernardino Pass
The San Bernardino Pass is a mountain pass at 2066 m (Graubünden). Access: road; usually open juin–octobre (tunnel 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 San Bernardino Pass: 1991–2020 normals
In San Bernardino Pass (2066 m), the mean annual temperature is 2.0 °C. The warmest month is July (10.9 °C on average) and the coldest January (−5.7 °C). About 1962 mm of precipitation falls per year, peaking in August (224 mm) with a minimum in February (71 mm). On average there are 174 frost days per year. The mean monthly maximum reaches 21.1 °C and the absolute minimum −17.3 °C.
Mean monthly precipitation (mm) — bar height relative to the wettest month.
| Month | Mean T | Abs. max | Abs. min | Precip. (mm) | Frost days | Summer days |
|---|---|---|---|---|---|---|
| Jan | −5.7 °C | 5.8 °C | −17.3 °C | 93 | 28 | 0 |
| Feb | −5.4 °C | 6.4 °C | −16.3 °C | 71 | 25 | 0 |
| Mar | −2.6 °C | 8.7 °C | −13.5 °C | 96 | 27 | 0 |
| Apr | 0.4 °C | 11.7 °C | −9.4 °C | 160 | 20 | 0 |
| May | 4.7 °C | 16.4 °C | −3.9 °C | 201 | 9 | 0 |
| Jun | 8.8 °C | 20.5 °C | −0.5 °C | 205 | 2 | 0 |
| Jul | 10.9 °C | 21.1 °C | 2.1 °C | 193 | 0 | 0 |
| Aug | 10.6 °C | 20.9 °C | 1.4 °C | 224 | 0 | 0 |
| Sep | 6.7 °C | 17.1 °C | −2.2 °C | 197 | 4 | 0 |
| Oct | 2.7 °C | 14.0 °C | −6.5 °C | 215 | 10 | 0 |
| Nov | −1.9 °C | 9.9 °C | −11.5 °C | 202 | 21 | 0 |
| Dec | −4.9 °C | 6.3 °C | −15.8 °C | 105 | 28 | 0 |
| Year | 2.0 °C | 21.1 °C | −17.3 °C | 1962 | 174 | 0 |
Source: MeteoSwiss open data (1991–2020 normals) — stations S. Bernardino (4 km, 1639 m), Acquarossa / Comprovasco (19 km, 575 m), Matro (21 km, 2171 m), adjusted to the elevation of San Bernardino Pass (2066 m) using a 0.55 °C/100 m lapse rate. Indicative, rounded values.
Passes & summits
- Weather Splügen Pass (12 km · 2113 m)
- Weather Lukmanier Pass (29 km · 1915 m)
- Weather Maloja Pass (42 km · 1815 m)
- Weather Oberalp Pass (42 km · 2044 m)
- Weather Julier Pass (43 km · 2284 m)
- Weather Cardada-Cimetta (44 km · 1671 m)
Nearby municipalities
- Weather Rossa (10 km)
- Weather Mesocco (11 km)
- Weather Rheinwald (13 km)
- Weather Acquarossa (16 km)
- Weather Blenio (17 km)
- Weather Soazza (17 km)
- Weather Sufers (18 km)
- Weather Vals (18 km)
Passes & summits Weather Rossa
Frequently asked questions about the weather: San Bernardino Pass
Is the San Bernardino Pass open?
The San Bernardino Pass is usually accessible juin–octobre (tunnel 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 San Bernardino Pass?
Expect about 10 °C less than in the lowlands (mean lapse rate 0.6 °C per 100 m). The mean annual temperature at 2066 m is about 2.0 °C; the coldest month is January (−5.7 °C).
Can it snow at the San Bernardino 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 San Bernardino Pass?
The warmest month in San Bernardino Pass is July, averaging 10.9 °C (1991–2020 normal). The coldest is January at −5.7 °C.
How much does it rain in San Bernardino Pass per year?
San Bernardino Pass receives about 1962 mm of precipitation a year. The wettest month is August (224 mm), the driest February (71 mm).
When is the best time to visit San Bernardino Pass?
For warmth and sunshine: July (10.9 °C on average, — h of sun). The coldest month is January (−5.7 °C). Check the 15-day forecast above for your dates.