La Voie Bleue, stage 6: Chalon-sur-Saône → Lyon
On stage 6 (Chalon-sur-Saône → Lyon, 148 km) the best month is October: 76% of days were dry with highs of 10–30 °C; the wind barely favours either direction (1.4 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% | 26% | 82 | 7 °C | 0% | 76% | 9.0 † |
| February | 34% | 25% | 65 | 9 °C | 0% | 55% | 10.3 † |
| March | 58% | 25% | 76 | 13 °C | 0% | 25% | 11.8 |
| April | 72% | 26% | 77 | 17 °C | 0% | 6% | 13.5 |
| May | 65% | 33% | 103 | 21 °C | 2% | 1% | 15.0 |
| June | 58% | 28% | 88 | 25 °C | 16% | 0% | 15.8 |
| July | 51% | 23% | 79 | 28 °C | 31% | 0% | 15.4 |
| August | 55% | 20% | 83 | 27 °C | 29% | 0% | 14.2 |
| September | 73% | 20% | 87 | 23 °C | 6% | 0% | 12.5 |
| October | 76% | 22% | 101 | 17 °C | 0% | 4% | 10.8 † |
| November | 42% | 28% | 105 | 11 °C | 0% | 40% | 9.3 † |
| December | 18% | 30% | 98 | 7 °C | 0% | 70% | 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 Chalon-sur-Saône → Lyon, km/h | Headwind > 15 km/h, Chalon-sur-Saône → Lyon | Headwind > 15 km/h, Lyon → Chalon-sur-Saône | Better way |
|---|---|---|---|---|
| January | −0.5 | 10% | 8% | either |
| February | −0.1 | 11% | 10% | either |
| March | +0.8 | 10% | 11% | either |
| April | +2.1 | 9% | 12% | Chalon-sur-Saône → Lyon |
| May | +2.5 | 6% | 12% | Chalon-sur-Saône → Lyon |
| June | +2.7 | 4% | 9% | Chalon-sur-Saône → Lyon |
| July | +3.4 | 3% | 6% | Chalon-sur-Saône → Lyon |
| August | +2.6 | 4% | 5% | Chalon-sur-Saône → Lyon |
| September | +1.6 | 5% | 7% | either |
| October | −1.4 | 13% | 6% | either |
| November | −1.8 | 11% | 6% | either |
| December | −2.2 | 11% | 5% | Lyon → Chalon-sur-Saône |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in October, km/h |
|---|---|---|
| 561–586 | S | −1.8 |
| 586–612 | S | −1.8 |
| 612–637 | S | −1.4 |
| 637–662 | S | −1.2 |
| 662–687 | S | −1.2 |
| 687–709 | S | −1.1 |
Other stages
- Hagondange → Metz 90 km
- Metz → Épinal 139 km
- Épinal → Port-sur-Saône 106 km
- Port-sur-Saône → Auxonne 119 km
- Auxonne → Chalon-sur-Saône 99 km
- Chalon-sur-Saône → Lyon 148 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.