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Detailed cycling weather forecast for Col du Granier. See wind direction, temperature and rain along the entire climb and descent.

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Pass Information

1,134m
Elevation
Current status: unknown
Opening Period: Ganzjährig offen
Current Conditions
Could not reliably identify pass 'Col du Granier' in Savoie external list.
Wed
11 Mar
cloud
Moderate rain
06:56 18:36
/
Precipitation 27 mm
Humidity 93 %

🚴‍♂️ Col du Granier — Open / Closed
🛣 Road access
  • The Col du Granier itself is officially open all year round on the road (the pass isn’t seasonally gated). 
  • However, practicability in winter depends on snow & conditions — heavy snow or ice can make it unsafe for cyclists (even if the road is technically open). 
  • Some local sources show seasonal closure patterns on certain sections or related cycling routes (e.g., closures mid-Sep to mid-Oct on some organized routes) — but these relate to route management rather than official pass closure. 
Summary: No strict, fixed closure period like high Alpine cols — but in winter months snow/ice often makes it unpleasant or unsafe unless cleared and conditions are good.
☀️ General Weather & Cycling Conditions by Season
Because Granier is a lower Alpine pass (~1130 m), its conditions are milder than high passes, but weather can still influence your ride significantly. 
Winter (Dec – Feb)
  • Temperatures often near or below freezing, especially at night.
  • Snow or ice on the road is common in colder spells.
  • Days are short, and rain can turn to snow at pass level.
  • Cycling is possible only with proper gear and dry conditions, but many riders avoid climbs at this time.
⏱ Worth noting: Unlike very high cols, this pass may stay open, but conditions are much more variable and often poor for road cycling.
Spring (Mar – May)
  • Early spring can still have cold days and residual snow/ice on shaded sections.
  • By April/May, milder temperatures return (daytime pleasant, but early mornings can still be cold).
  • Unpredictable weather — prepared for rain, cooler temps, or sudden cold snaps.
📍 Lower passes like Granier often become reliably ridable earlier than high Alps, but check local conditions first.
Summer (Jun – Aug)
  • Best season for cycling this pass.
  • Warm days, generally dry but occasional rain showers or thunderstorms in afternoons.
  • Good window for long climbs and descents.
  • Popular season: expect more recreational cyclists and weekend traffic.
Autumn (Sep – Nov)
  • September & October can still be great — warm days, cooler nights.
  • Increasing chance of rain; higher humidity or morning fog.
  • After mid-October, risk of early snow or cold snaps increases significantly.
  • Road conditions may deteriorate late in the season.
🧭 Weather Patterns Cyclists Should Expect
Here’s a typical expected pattern for riders (applies broadly to lower Alpine passes like Granier): 
SeasonAvg. TempsWeather NotesCycling Suitability
Winter | ≈ 0–8 °C | Snow/ice likely | ❌ Challenging
Spring | ≈ 7–18 °C | Rain, variable | ⚠️ Possible with care
Summer | ≈ 18–28 °C | Warm, some rain | ✅ Best
Autumn | ≈ 10–20 °C | Cooler, wetter | ⚠️ Spring-like
Rain and thunderstorms are more frequent in summer afternoons and early autumn, so morning rides are often nicer. 
🧠 Practical Tips for Cyclists
Check local forecasts shortly before your ride — conditions change fast in the mountains.
✔ In shoulder seasons (Spring/Autumn), start early to avoid afternoon storms.
Winter rides are possible but require winter tires or gravel/snow setup and familiarity with icy descents.
✔ Roads are not strictly closed by a calendar date — instead they depend on snow clearing and weather safety
🏁 Short Summary
Col du Granier is generally accessible year-round, but safe and enjoyable cycling revolves around the seasons:
  • Summer (Jun–Aug): Best conditions — warm, mostly dry.
  • Spring/Autumn: Good with variable weather — watch forecasts.
  • Winter: Possible in clear conditions but often cold/snowy.
Unlike high-mountain passes (which have fixed seasonal closures), Granier’s practicability is determined more by actual weather, snow, and road clearing than by fixed open/close dates

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Location


Weather Forecast

Next 7 Days

Wed
11 Mar
cloud
Moderate rain
06:56 18:36
/
Precipitation 27 mm
Humidity 93 %
Thu
12 Mar
water_drop
Rain showers
06:54 18:37
/
Precipitation 10 mm
Humidity 98 %
Fri
13 Mar
cloud
Overcast
06:52 18:39
12° /
Precipitation 0 mm
Humidity 69 %
Sat
14 Mar
ac_unit
Snow
06:50 18:40
/ -3°
Precipitation 18 mm
Humidity 100 %
Sun
15 Mar
ac_unit
Snow
06:48 18:41
/ -3°
Precipitation 0 mm
Humidity 100 %
Mon
16 Mar
cloud
Overcast
06:46 18:43
/ -2°
Precipitation 0 mm
Humidity 90 %
Tue
17 Mar
cloud
Overcast
06:44 18:44
11° /
Precipitation 0 mm
Humidity 90 %

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 -4°C 16 5.9h 19 211 mm 75 % 2 9h 11m
Feb 6°C -2°C 21 7.9h 10 54 mm 73 % 3 10h 24m
Mar 9°C -1°C 26 8.7h 15 86 mm 70 % 4 11h 57m
Apr 13°C 2°C 26 10.5h 18 167 mm 68 % 5 13h 32m
May 15°C 5°C 25 10.8h 19 164 mm 65 % 6 14h 54m
Jun 23°C 12°C 30 13.7h 12 107 mm 67 % 7 15h 36m
Jul 21°C 11°C 31 13.2h 19 154 mm 66 % 8 15h 15m
Aug 23°C 11°C 30 12.0h 11 104 mm 68 % 7 14h 2m
Sep 16°C 7°C 23 8.4h 20 184 mm 70 % 5 12h 30m
Oct 12°C 3°C 23 7.9h 15 169 mm 72 % 4 10h 55m
Nov 7°C -2°C 18 6.1h 13 207 mm 76 % 2 9h 31m
Dec 5°C -3°C 20 6.1h 10 27 mm 77 % 2 8h 46m