Centre-Ardennes EV19-EV5: which way and when to ride
The best month for Centre-Ardennes EV19-EV5 is September: 75% of days were dry with highs of 10–30 °C. In September the wind barely favours either direction — on average 1.8 km/h along the route (ERA5 2006–2025, daytime 9:00–18:00).
Also passes through France
Weather by month
| Month | Good days | Rain days ≥ 1 mm | Rain, mm | Avg high | Days ≥ 30 °C | Days < 10 °C | Daylight, h |
|---|---|---|---|---|---|---|---|
| January | 2% | 32% | 101 | 4 °C | 0% | 95% | 8.6 † |
| February | 10% | 30% | 80 | 5 °C | 0% | 88% | 10.0 † |
| March | 32% | 32% | 83 | 9 °C | 0% | 59% | 11.7 |
| April | 57% | 31% | 61 | 14 °C | 0% | 27% | 13.7 |
| May | 63% | 35% | 84 | 17 °C | 0% | 5% | 15.4 |
| June | 65% | 34% | 88 | 20 °C | 2% | 0% | 16.3 |
| July | 64% | 31% | 85 | 22 °C | 5% | 0% | 15.9 |
| August | 65% | 31% | 87 | 22 °C | 5% | 0% | 14.4 |
| September | 75% | 25% | 76 | 18 °C | 0% | 1% | 12.5 |
| October | 61% | 26% | 87 | 13 °C | 0% | 17% | 10.6 † |
| November | 18% | 33% | 86 | 8 °C | 0% | 72% | 9.0 † |
| December | 3% | 32% | 107 | 5 °C | 0% | 91% | 8.1 † |
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 Douzy → Amberloup, km/h | Headwind > 15 km/h, Douzy → Amberloup | Headwind > 15 km/h, Amberloup → Douzy | Better way |
|---|---|---|---|---|
| January | +3.6 | 10% | 23% | Douzy → Amberloup |
| February | +3.0 | 12% | 23% | Douzy → Amberloup |
| March | +1.6 | 12% | 19% | either |
| April | +0.4 | 10% | 13% | either |
| May | +1.0 | 10% | 14% | either |
| June | +1.3 | 8% | 12% | either |
| July | +2.7 | 7% | 16% | Douzy → Amberloup |
| August | +2.9 | 6% | 13% | Douzy → Amberloup |
| September | +1.8 | 8% | 13% | either |
| October | +2.9 | 8% | 17% | Douzy → Amberloup |
| November | +3.7 | 8% | 21% | Douzy → Amberloup |
| December | +4.1 | 10% | 24% | Douzy → Amberloup |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 0–25 | NE | +3.3 |
| 25–50 | N | +3.0 |
| 50–76 | E | +3.5 |
| 76–101 | SW | −3.4 |
| 101–105 | W | −2.6 |
| 105–124 | NE | +3.8 |
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.