Grignon rond point – Weather Forecast
Lévis-Saint-Nom, Île-de-France, FR
This page shows a route-based weather forecast for the Grignon rond point cycling climb in Lévis-Saint-Nom, Île-de-France, 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.
Grignon rond point
Plan Your Ride
touch_app Click on the map to place a break point
No breaks added. Click "Add Break" then click on the map.
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
→ Original Direction
← Reversed Direction
Creates a new saved route in the reversed direction
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 09:58
Climate Overview
| Month |
Temp Day
|
Temp Night
|
Sunny Days
|
Sun Hours
|
Rain Days
|
Precipitation
|
Humidity
|
UV Index
|
Day Length
|
|---|---|---|---|---|---|---|---|---|---|
| Jan | 7°C | 1°C | 4 | 2.7h | 19 | 131 mm | 75 % | 2 | 8h 48m |
| Feb | 8°C | 2°C | 11 | 5.1h | 14 | 52 mm | 73 % | 3 | 10h 12m |
| Mar | 13°C | 4°C | 23 | 8.4h | 13 | 30 mm | 70 % | 4 | 11h 56m |
| Apr | 17°C | 7°C | 29 | 11.3h | 10 | 30 mm | 68 % | 5 | 13h 44m |
| May | 20°C | 10°C | 28 | 11.1h | 13 | 79 mm | 65 % | 6 | 15h 17m |
| Jun | 26°C | 15°C | 28 | 13.1h | 13 | 44 mm | 67 % | 7 | 16h 5m |
| Jul | 24°C | 15°C | 29 | 12.0h | 19 | 126 mm | 66 % | 8 | 15h 41m |
| Aug | 26°C | 15°C | 29 | 11.4h | 9 | 26 mm | 68 % | 7 | 14h 18m |
| Sep | 19°C | 12°C | 22 | 8.2h | 20 | 74 mm | 70 % | 5 | 12h 34m |
| Oct | 15°C | 9°C | 19 | 6.6h | 14 | 47 mm | 72 % | 4 | 10h 46m |
| Nov | 11°C | 6°C | 13 | 4.4h | 17 | 66 mm | 76 % | 2 | 9h 10m |
| Dec | 9°C | 4°C | 11 | 3.7h | 9 | 35 mm | 77 % | 2 | 8h 19m |