Voie Verte des Vallées, stage 4: La Crèche → La Rochelle
On stage 4 (La Crèche → La Rochelle, 121 km) the best month is September: 79% of days were dry with highs of 10–30 °C; the wind barely favours either direction (1.3 km/h on average; ERA5 2006–2025, 9:00–18:00).
← Voie Verte des Vallées (Whole route)
Weather by month
| Month | Good days | Rain days ≥ 1 mm | Rain, mm | Avg high | Days ≥ 30 °C | Days < 10 °C | Daylight, h |
|---|---|---|---|---|---|---|---|
| January | 30% | 24% | 80 | 9 °C | 0% | 53% | 9.0 † |
| February | 48% | 22% | 65 | 11 °C | 0% | 36% | 10.3 † |
| March | 65% | 25% | 68 | 14 °C | 0% | 14% | 11.8 |
| April | 77% | 21% | 57 | 17 °C | 0% | 3% | 13.5 |
| May | 74% | 25% | 68 | 20 °C | 1% | 0% | 15.0 |
| June | 72% | 20% | 60 | 24 °C | 8% | 0% | 15.8 |
| July | 74% | 11% | 34 | 25 °C | 15% | 0% | 15.4 |
| August | 73% | 12% | 38 | 25 °C | 15% | 0% | 14.2 |
| September | 79% | 16% | 49 | 23 °C | 5% | 0% | 12.5 |
| October | 78% | 22% | 79 | 19 °C | 0% | 1% | 10.8 † |
| November | 59% | 27% | 88 | 13 °C | 0% | 17% | 9.3 † |
| December | 36% | 24% | 84 | 10 °C | 0% | 44% | 8.6 † |
Best months are all months within 3 percentage points of the best one. † less than 11 hours of daylight — long stages get tight.
Wind by month
| Month | Wind La Crèche → La Rochelle, km/h | Headwind > 15 km/h, La Crèche → La Rochelle | Headwind > 15 km/h, La Rochelle → La Crèche | Better way |
|---|---|---|---|---|
| January | −2.8 | 18% | 7% | La Rochelle → La Crèche |
| February | −2.8 | 20% | 9% | La Rochelle → La Crèche |
| March | −2.1 | 20% | 10% | La Rochelle → La Crèche |
| April | −0.7 | 14% | 11% | either |
| May | −3.0 | 19% | 8% | La Rochelle → La Crèche |
| June | −3.1 | 15% | 6% | La Rochelle → La Crèche |
| July | −5.4 | 21% | 5% | La Rochelle → La Crèche |
| August | −4.7 | 16% | 3% | La Rochelle → La Crèche |
| September | −1.3 | 13% | 8% | either |
| October | −0.9 | 12% | 7% | either |
| November | −2.8 | 15% | 5% | La Rochelle → La Crèche |
| December | −2.8 | 17% | 8% | La Rochelle → La Crèche |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 353–378 | W | −1.5 |
| 378–403 | SW | −0.7 |
| 403–428 | W | −2.1 |
| 428–458 | SW | −1.2 |
| 458–473 | SW | −0.5 |
Other stages
- Bourges → La Châtre 78 km
- La Châtre → Chauvigny 126 km
- Chauvigny → La Crèche 119 km
- La Crèche → La Rochelle 121 km
How to read the numbers
Wind is the 10 m wind of a 25-km grid cell, daytime hours 9:00–18:00 local solar time; at saddle height in a sheltered valley it is weaker, on a coast or ridge stronger. A positive value is a tailwind. ERA5 slightly over-counts days with ≥ 1 mm of rain (by about 5–7 percentage points) and underestimates daily highs by 1–2 °C. Good day = less than 1 mm of rain between 9:00 and 18:00 (riding hours, local solar time) and a high between 10 and 30 °C; rain at night or in the evening does not spoil it.