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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
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Pass Information

2,503m
Elevation
12.0%
Max Gradient
33.0 km
Length
Current status: open
Opening Period: Wintersperre
Current Conditions
H559 Umbrailpassstraße | Route: Bormio (I) - Santa Maria im Münstertal | ganzjährig geöffnet, bei schlechter Witterung Einschränkungen möglich | Aufgrund der schmalen Straßenverhältnisse und der engen Kehren nicht zu empfehlen | Max. Länge für Reisebusse: 10 m (ohne Anhänger oder Skiablage) | Für LKW-Anhänger verboten. Das Höchstgewicht beträgt 28 t zwischen Santa Maria und Schais-Brücke, ansonsten 18 t. | Computed opening: openAllDay=True, openNextHour=True, minutesLeftOpen=2644, minutesLeftClosed=0
Mon
13 Jul
flash_on
Thunderstorm
05:38 21:09
18° /
Precipitation 8 mm
Humidity 97 %

🚴‍♂️ 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.

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Location


Weather Forecast

Next 7 Days

Mon
13 Jul
flash_on
Thunderstorm
05:38 21:09
18° /
Precipitation 8 mm
Humidity 97 %
Tue
14 Jul
flash_on
Thunderstorm
05:39 21:08
16° /
Precipitation 5 mm
Humidity 85 %
Wed
15 Jul
water_drop
Rain showers
05:40 21:08
16° /
Precipitation 2 mm
Humidity 82 %
Thu
16 Jul
cloud
Overcast
05:41 21:07
17° /
Precipitation 0 mm
Humidity 91 %
Fri
17 Jul
cloud
Overcast
05:42 21:06
16° /
Precipitation 2 mm
Humidity 85 %
Sat
18 Jul
cloud
Overcast
05:43 21:05
15° /
Precipitation 0 mm
Humidity 96 %
Sun
19 Jul
water_drop
Rain showers
05:44 21:04
13° /
Precipitation 4 mm
Humidity 86 %

Climate Overview

Climate Overview

Month
Day Temperature Temp Day
Night Temperature Temp Night
Sunny Days Sunny Days
Sun Hours Sun Hours
Rain Days Rain Days
Precipitation Precipitation
Humidity Humidity
UV Index UV Index
Day Length 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