Back to Alpine Passes

Detailed cycling weather forecast for Col d'Allos. See wind direction, temperature and rain along the entire climb and descent.

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Pass Information

2,248m
Elevation
Current status: closed
Opening Period: Ganzjährig offen
Current Conditions
Col d'Allos (2248m) is closed.
Wed
11 Mar
ac_unit
Snow
06:53 18:34
/ -3°
Precipitation 1 mm
Humidity 94 %

📅 Open & Closed (Typical Season)
🌨️ Winter – Late October to Late April / Early May
  • The pass is closed in winter due to snow and avalanche risk, and often used for skiing activities (e.g., La Foux d’Allos ski area). 
  • Snow and cold conditions make cycling impractical and unsafe at high altitude during these months.
🌷 Spring – May to Early June
  • Snow clearance begins in spring, but the pass may remain closed until late May or the end of April/early June, depending on yearly conditions. 
  • At higher elevation (2 200 m+), snow can linger and road crews need time to remove it.
🚴‍♂️ Summer – June to October
  • Road is normally open from ~June to October, forming the main cycling season. 
  • In past years, mid-summer months (July–August) offer the most reliable conditions, and sometimes special traffic rules like bicycle-only slots on Friday mornings in July/August
🍁 Autumn – October
  • The pass typically closes again sometime in autumn, often late September or October, when snow returns. 
📌 Note: Exact opening/closing dates vary year-to-year depending on snowfall, temperature and timing of snow clearance operations — so always check local info close to your ride.
🌦️ Weather & Riding Conditions Through the Year
Winter / Early Spring
  • Cold and snowy at all elevations.
  • Snow cover and icy roads make cycling unsafe.
  • Low temperatures and ski-area operations dominate the season. 
Late Spring (May–Early June)
  • Temperatures begin rising in valleys, but can still be cold near the pass summit (near or slightly above 0 °C).
  • Snow patches may remain; weather can be unstable with rainy or cool conditions. (General Alpine pattern) 
Summer (June–August)
  • Best cycling season: warmer valley temperatures but still cool at altitude.
  • Typical patterns:
    • Warm and sunny mornings, but afternoon thunderstorms are quite common in the Alps. 
    • At the pass top, temperatures can be 10–15 °C lower than in valley towns if it’s hot below. 
  • Thunderstorms and rapid weather changes are frequent — even in summer.
Early Autumn (September)
  • Often still comfortable and pleasant for cycling, with lingering warmth earlier in the month. Average temperatures can still be moderate at lower altitudes. 
  • Transition months may bring more rain and cooler nights, especially higher up.
📌 Tips for Cyclists
  • Clothing layers are essential: temperatures at the summit can be drastically lower than in valleys. 
  • Afternoon thunderstorms are common in summer — plan early starts and check daily weather forecasts.
  • Snow or wet conditions can persist in late spring and early autumn, even if roads are open.
  • Road closures are weather dependent — exact dates vary notably each year.
🧠 Short Summary
  • Season: Typically open June–October for cyclists. 
  • Closed: Late autumn–late spring (snow season). 
  • Best months: July–August — highest chance of clear roads and stable weather, but thunderstorms possible. 
  • Spring/Autumn rides: Possible but more variable — cooler temps and lingering snow may affect conditions.

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Location


Weather Forecast

Next 7 Days

Wed
11 Mar
ac_unit
Snow
06:53 18:34
/ -3°
Precipitation 1 mm
Humidity 94 %
Thu
12 Mar
ac_unit
Snow
06:51 18:35
/ -4°
Precipitation 2 mm
Humidity 100 %
Fri
13 Mar
cloud
Overcast
06:49 18:36
/ -3°
Precipitation 0 mm
Humidity 86 %
Sat
14 Mar
ac_unit
Snow
06:47 18:37
-1° / -6°
Precipitation 21 mm
Humidity 100 %
Sun
15 Mar
ac_unit
Snow showers
06:45 18:39
/ -6°
Precipitation 3 mm
Humidity 100 %
Mon
16 Mar
cloud
Overcast
06:43 18:40
/ -5°
Precipitation 0 mm
Humidity 93 %
Tue
17 Mar
cloud
Overcast
06:42 18:41
/ -1°
Precipitation 0 mm
Humidity 94 %

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 0°C -10°C 19 6.1h 20 137 mm 75 % 2 9h 18m
Feb 2°C -9°C 23 8.2h 8 10 mm 73 % 3 10h 28m
Mar 3°C -8°C 27 9.6h 13 109 mm 70 % 4 11h 57m
Apr 6°C -4°C 26 10.6h 17 99 mm 68 % 5 13h 29m
May 10°C -1°C 31 12.6h 19 106 mm 65 % 6 14h 48m
Jun 20°C 8°C 30 14.2h 18 60 mm 67 % 7 15h 27m
Jul 18°C 6°C 31 14.2h 13 58 mm 66 % 8 15h 7m
Aug 20°C 7°C 28 12.2h 14 76 mm 68 % 7 13h 58m
Sep 14°C 3°C 28 10.9h 10 52 mm 70 % 5 12h 29m
Oct 10°C -1°C 28 9.0h 15 111 mm 72 % 4 10h 58m
Nov 4°C -6°C 24 7.4h 12 97 mm 76 % 2 9h 37m
Dec 2°C -8°C 22 6.2h 12 59 mm 77 % 2 8h 55m