La Véloscénie, stage 5: Antony → Paris
On stage 5 (Antony → Paris, 72 km) the best month is September: 81% 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).
Weather by month
| Month | Good days | Rain days ≥ 1 mm | Rain, mm | Avg high | Days ≥ 30 °C | Days < 10 °C | Daylight, h |
|---|---|---|---|---|---|---|---|
| January | 16% | 22% | 57 | 7 °C | 0% | 75% | 8.7 † |
| February | 31% | 22% | 50 | 9 °C | 0% | 59% | 10.1 † |
| March | 53% | 25% | 55 | 12 °C | 0% | 31% | 11.7 |
| April | 74% | 23% | 45 | 16 °C | 0% | 7% | 13.6 |
| May | 72% | 28% | 67 | 19 °C | 0% | 1% | 15.2 |
| June | 70% | 24% | 64 | 23 °C | 6% | 0% | 16.1 |
| July | 71% | 17% | 53 | 25 °C | 14% | 0% | 15.8 |
| August | 73% | 17% | 54 | 25 °C | 11% | 0% | 14.3 |
| September | 81% | 16% | 46 | 21 °C | 3% | 0% | 12.5 |
| October | 75% | 23% | 68 | 17 °C | 0% | 3% | 10.7 † |
| November | 47% | 22% | 60 | 11 °C | 0% | 37% | 9.1 † |
| December | 22% | 23% | 69 | 8 °C | 0% | 66% | 8.3 † |
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 Antony → Paris, km/h | Headwind > 15 km/h, Antony → Paris | Headwind > 15 km/h, Paris → Antony | Better way |
|---|---|---|---|---|
| January | −3.3 | 19% | 7% | Paris → Antony |
| February | −2.6 | 19% | 10% | Paris → Antony |
| March | −1.5 | 17% | 9% | either |
| April | −0.2 | 11% | 9% | either |
| May | −1.3 | 13% | 7% | either |
| June | −1.2 | 11% | 6% | either |
| July | −2.9 | 15% | 5% | Paris → Antony |
| August | −3.0 | 12% | 4% | Paris → Antony |
| September | −1.3 | 11% | 7% | either |
| October | −1.6 | 13% | 7% | either |
| November | −2.8 | 17% | 7% | Paris → Antony |
| December | −3.5 | 19% | 8% | Paris → Antony |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 454–479 | SW | −1.9 |
| 479–505 | W | −2.5 |
| 505–510 | SE | +0.8 |
| 510–526 | N | +0.9 |
Other stages
- near Pontorson → Domfront 98 km
- Domfront → Mortagne-au-Perche 113 km
- Mortagne-au-Perche → Chartres 114 km
- Chartres → Antony 112 km
- Antony → Paris 72 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.