Les Clefs - Col du Marais – Weather Forecast
Category 4Saint-Jean-de-Sixt, Auvergne-Rhône-Alpes, FR
This page shows a route-based weather forecast for the Les Clefs - Col du Marais cycling climb in Saint-Jean-de-Sixt, Auvergne-Rhône-Alpes, FR. Unlike a simple location forecast, conditions are calculated at every point along the climb — from the base to the summit — using the actual route profile and elevation data.
You'll see hour-by-hour temperature, wind speed and direction, precipitation probability, and cloud cover adjusted for altitude. Choose your planned departure time to align the forecast with your ride.
Les Clefs - Col du Marais
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Calculating weather along route...
Trip Summary
Forecast A
Trip Summary A
Forecast B
Trip Summary B
Weather Display Options
Forecast A - Route Map
Forecast B - Route Map
Compare Reversed Route
Same departure time & speed — opposite direction
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← Reversed Direction
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Route Map
Elevation Profile
Temperature Along Route
Precipitation & Precipitation Probability Along Route
Wind Along Route
Humidity Along Route
Pollen Along Route
UV Index Along Route
Start place details
Weather Forecast
Hourly around Mon 15 Jun 10:09
Climate Overview
| Month |
Temp Day
|
Temp Night
|
Sunny Days
|
Sun Hours
|
Rain Days
|
Precipitation
|
Humidity
|
UV Index
|
Day Length
|
|---|---|---|---|---|---|---|---|---|---|
| Jan | 8°C | -1°C | 14 | 5.6h | 19 | 269 mm | 75 % | 2 | 9h 9m |
| Feb | 9°C | 0°C | 20 | 7.2h | 11 | 90 mm | 73 % | 3 | 10h 23m |
| Mar | 12°C | 1°C | 27 | 8.7h | 15 | 84 mm | 70 % | 4 | 11h 56m |
| Apr | 16°C | 4°C | 26 | 10.2h | 17 | 175 mm | 68 % | 5 | 13h 34m |
| May | 17°C | 7°C | 25 | 10.6h | 19 | 145 mm | 65 % | 6 | 14h 57m |
| Jun | 25°C | 14°C | 30 | 13.2h | 13 | 260 mm | 67 % | 7 | 15h 39m |
| Jul | 23°C | 13°C | 31 | 12.8h | 20 | 167 mm | 66 % | 8 | 15h 17m |
| Aug | 25°C | 14°C | 29 | 11.9h | 13 | 125 mm | 68 % | 7 | 14h 4m |
| Sep | 19°C | 10°C | 21 | 7.8h | 20 | 227 mm | 70 % | 5 | 12h 31m |
| Oct | 15°C | 6°C | 23 | 7.4h | 15 | 240 mm | 72 % | 4 | 10h 54m |
| Nov | 10°C | 1°C | 17 | 5.7h | 15 | 205 mm | 76 % | 2 | 9h 29m |
| Dec | 9°C | 1°C | 20 | 6.0h | 11 | 29 mm | 77 % | 2 | 8h 44m |