EuroVelo 1 - Atlantic Coast Route - part France, stage 6: Olonne-sur-Mer → La Rochelle
On stage 6 (Olonne-sur-Mer → La Rochelle, 125 km) the best month is July: 82% of days were dry with highs of 10–30 °C, and riding Olonne-sur-Mer → La Rochelle meant an average tailwind of 6.6 km/h (ERA5 2006–2025, 9:00–18:00).
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Weather by month
| Month | Good days | Rain days ≥ 1 mm | Rain, mm | Avg high | Days ≥ 30 °C | Days < 10 °C | Daylight, h |
|---|---|---|---|---|---|---|---|
| January | 33% | 24% | 81 | 9 °C | 0% | 50% | 9.0 † |
| February | 48% | 21% | 63 | 10 °C | 0% | 36% | 10.3 † |
| March | 67% | 23% | 63 | 13 °C | 0% | 15% | 11.8 |
| April | 81% | 18% | 50 | 16 °C | 0% | 2% | 13.5 |
| May | 79% | 20% | 58 | 19 °C | 0% | 0% | 15.0 |
| June | 79% | 17% | 52 | 22 °C | 5% | 0% | 15.8 |
| July | 82% | 10% | 33 | 24 °C | 8% | 0% | 15.4 |
| August | 81% | 11% | 34 | 24 °C | 8% | 0% | 14.2 |
| September | 82% | 16% | 49 | 22 °C | 3% | 0% | 12.5 |
| October | 77% | 22% | 78 | 18 °C | 0% | 1% | 10.8 † |
| November | 62% | 26% | 93 | 13 °C | 0% | 13% | 9.3 † |
| December | 38% | 26% | 85 | 10 °C | 0% | 39% | 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 Olonne-sur-Mer → La Rochelle, km/h | Headwind > 15 km/h, Olonne-sur-Mer → La Rochelle | Headwind > 15 km/h, La Rochelle → Olonne-sur-Mer | Better way |
|---|---|---|---|---|
| January | +2.2 | 9% | 18% | Olonne-sur-Mer → La Rochelle |
| February | +2.4 | 10% | 19% | Olonne-sur-Mer → La Rochelle |
| March | +2.5 | 10% | 20% | Olonne-sur-Mer → La Rochelle |
| April | +2.5 | 8% | 16% | Olonne-sur-Mer → La Rochelle |
| May | +4.7 | 6% | 22% | Olonne-sur-Mer → La Rochelle |
| June | +4.8 | 4% | 18% | Olonne-sur-Mer → La Rochelle |
| July | +6.6 | 3% | 25% | Olonne-sur-Mer → La Rochelle |
| August | +6.0 | 3% | 20% | Olonne-sur-Mer → La Rochelle |
| September | +3.1 | 6% | 16% | Olonne-sur-Mer → La Rochelle |
| October | +0.4 | 9% | 12% | either |
| November | +1.9 | 10% | 17% | either |
| December | +1.6 | 10% | 18% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in July, km/h |
|---|---|---|
| 608–633 | SE | +6.7 |
| 633–658 | SE | +8.3 |
| 658–683 | SE | +9.7 |
| 683–710 | E | +9.5 |
| 710–733 | SW | −1.9 |
Other stages
- Roscoff → Rostrenen 111 km
- Rostrenen → Malestroit 125 km
- Malestroit → Nantes 139 km
- Nantes → Pornic 108 km
- Pornic → Olonne-sur-Mer 124 km
- Olonne-sur-Mer → La Rochelle 125 km
- La Rochelle → Royan 135 km
- Royan → Andernos-les-Bains 133 km
- Andernos-les-Bains → Mimizan 117 km
- Mimizan → Irun 163 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.