EuroVelo 1 - Atlantic Coast Route - part France, stage 10: Mimizan → Irun
On stage 10 (Mimizan → Irun, 163 km) the best month is July: 79% of days were dry with highs of 10–30 °C, and riding Mimizan → Irun meant an average tailwind of 3.7 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 | 43% | 32% | 130 | 11 °C | 0% | 33% | 9.3 † |
| February | 56% | 29% | 97 | 13 °C | 0% | 21% | 10.4 † |
| March | 65% | 30% | 102 | 15 °C | 0% | 9% | 11.8 |
| April | 73% | 27% | 83 | 17 °C | 0% | 1% | 13.4 |
| May | 75% | 25% | 89 | 19 °C | 1% | 0% | 14.7 |
| June | 74% | 23% | 87 | 22 °C | 4% | 0% | 15.4 |
| July | 79% | 14% | 48 | 24 °C | 7% | 0% | 15.1 |
| August | 76% | 14% | 58 | 25 °C | 10% | 0% | 14.0 |
| September | 76% | 20% | 76 | 23 °C | 4% | 0% | 12.4 |
| October | 78% | 22% | 92 | 20 °C | 0% | 0% | 10.9 † |
| November | 60% | 36% | 156 | 15 °C | 0% | 8% | 9.6 † |
| December | 53% | 30% | 122 | 12 °C | 0% | 21% | 8.9 † |
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 Mimizan → Irun, km/h | Headwind > 15 km/h, Mimizan → Irun | Headwind > 15 km/h, Irun → Mimizan | Better way |
|---|---|---|---|---|
| January | −2.8 | 14% | 3% | Irun → Mimizan |
| February | −1.7 | 12% | 4% | either |
| March | −0.6 | 10% | 5% | either |
| April | +1.2 | 6% | 3% | either |
| May | +2.2 | 2% | 3% | Mimizan → Irun |
| June | +3.0 | 2% | 3% | Mimizan → Irun |
| July | +3.7 | 0% | 3% | Mimizan → Irun |
| August | +3.7 | 1% | 3% | Mimizan → Irun |
| September | +1.7 | 3% | 2% | either |
| October | −1.4 | 10% | 2% | either |
| November | −2.8 | 14% | 4% | Irun → Mimizan |
| December | −4.2 | 16% | 2% | Irun → Mimizan |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in July, km/h |
|---|---|---|
| 1,112–1,137 | S | +4.4 |
| 1,137–1,162 | S | +7.5 |
| 1,162–1,187 | SW | +1.8 |
| 1,187–1,213 | S | +4.9 |
| 1,213–1,238 | SW | +2.5 |
| 1,238–1,263 | SW | +0.2 |
| 1,263–1,275 | SW | +4.9 |
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.