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Detailed cycling weather forecast for Umbrailpass. See wind direction, temperature and rain along the entire climb and descent.
✓ Open
Graubünden, CH
Pass Information
2,503m
Elevation
12.0%
Max Gradient
33.0 km
Length
Current status:
open
Opening Period:
Wintersperre
Current Conditions
Sta. Maria i. M. - country border Winter closure from Monday, 10 November 2025, 2 p.m.
Sat
13 Jun
cloud
Overcast
05:24
—
21:11
12°
/
4°
Precipitation
0 mm
Humidity
87 %
🚴♂️ Umbrailpass – Pass Open/Close Seasons
- Typical open season: Umbrail Pass is usually open for summer traffic once snow has melted and maintenance crews clear the road.
- Typical closure period: It closes in late autumn / early November due to snow and winter conditions (in 2025 it closed 10 Nov at 14:00).
- Approximate season window: Historically from late May/early June to early/mid November depending on snow depth and weather.
🌡️ Weather Conditions to Expect
During the Cycling Season (Summer – June to October)
- Temperatures: Even in summer, at ~2500 m you can expect cool to cold conditions, often 5 °C–10 °C near the top, even when valleys are warm.
- Rapid changes: Weather changes quickly — clear skies can turn to rain, wind or even snow at high altitude in shoulder months (May or October).
- Afternoon storms: Common in Alps — plan to start early in the morning to avoid thunderstorms.
- Wind: Alpine passes can have strong gusts, especially near summit ridges.
Outside Summer Season (Late Autumn to Spring)
- Snow and ice: Roads can be snow-covered or icy and unsafe for bikes.
- Cold temperatures: Sub-zero weather persists above ~2000 m for most of winter.
- Summer closure until next spring: Pass stays closed through winter until roads are cleared (often late May/June).
🚴♀️ Cyclist Safety Tips
- Check forecast by altitude: Mountain weather is localized — a pass forecast can differ sharply from nearby valley forecasts.
- Dressing: Bring layered clothing, waterproof gear, and cold-weather accessories (gloves, head cover).
- Start early: Reduces risk of afternoon storms and cold descending conditions.
- Snow risk early/late season: Be prepared for residual snow near summit even in May or late October.
Check weather on own route
Location
Weather Forecast
Next 7 Days
Sat
13 Jun
cloud
Overcast
05:24
—
21:11
12°
/
4°
Precipitation
0 mm
Humidity
87 %
Sun
14 Jun
cloud
Overcast
05:24
—
21:12
12°
/
4°
Precipitation
0 mm
Humidity
73 %
Mon
15 Jun
water_drop
Light rain
05:24
—
21:12
9°
/
3°
Precipitation
0 mm
Humidity
80 %
Tue
16 Jun
cloud
Overcast
05:24
—
21:13
12°
/
3°
Precipitation
0 mm
Humidity
81 %
Wed
17 Jun
cloud
Overcast
05:24
—
21:13
14°
/
5°
Precipitation
0 mm
Humidity
82 %
Thu
18 Jun
cloud
Overcast
05:24
—
21:14
18°
/
7°
Precipitation
0 mm
Humidity
88 %
Fri
19 Jun
water_drop
Rain showers
05:24
—
21:14
17°
/
8°
Precipitation
2 mm
Humidity
87 %
Climate Overview
Climate Overview
| Month |
Temp Day
|
Temp Night
|
Sunny Days
|
Sun Hours
|
Rain Days
|
Precipitation
|
Humidity
|
UV Index
|
Day Length
|
|---|---|---|---|---|---|---|---|---|---|
| Jan | -5°C | -15°C | 17 | 5.5h | 18 | 93 mm | 75 % | 2 | 9h 4m |
| Feb | -3°C | -14°C | 18 | 7.3h | 9 | 13 mm | 73 % | 3 | 10h 21m |
| Mar | -1°C | -12°C | 23 | 8.6h | 14 | 57 mm | 70 % | 4 | 11h 56m |
| Apr | 3°C | -7°C | 25 | 10.4h | 14 | 49 mm | 68 % | 5 | 13h 36m |
| May | 4°C | -4°C | 27 | 11.1h | 18 | 77 mm | 65 % | 6 | 15h 1m |
| Jun | 14°C | 3°C | 30 | 13.8h | 14 | 45 mm | 67 % | 7 | 15h 45m |
| Jul | 12°C | 1°C | 29 | 12.2h | 22 | 74 mm | 66 % | 8 | 15h 23m |
| Aug | 14°C | 3°C | 29 | 11.7h | 18 | 67 mm | 68 % | 7 | 14h 7m |
| Sep | 9°C | 0°C | 25 | 9.9h | 16 | 57 mm | 70 % | 5 | 12h 31m |
| Oct | 4°C | -5°C | 27 | 8.5h | 13 | 44 mm | 72 % | 4 | 10h 52m |
| Nov | -2°C | -11°C | 21 | 6.7h | 10 | 64 mm | 76 % | 2 | 9h 25m |
| Dec | -2°C | -13°C | 23 | 6.7h | 10 | 15 mm | 77 % | 2 | 8h 38m |