EuroVelo 4 - Central Europe Route - part Germany, stage 1: Venlo → Köln
On stage 1 (Venlo → Köln, 104 km) the best month is September: 78% of days were dry with highs of 10–30 °C; the wind barely favours either direction (0.8 km/h on average; ERA5 2006–2025, 9:00–18:00).
← EuroVelo 4 - Central Europe Route - part Germany (Whole route)
Weather by month
| Month | Good days | Rain days ≥ 1 mm | Rain, mm | Avg high | Days ≥ 30 °C | Days < 10 °C | Daylight, h |
|---|---|---|---|---|---|---|---|
| January | 6% | 30% | 84 | 5 °C | 0% | 86% | 8.4 † |
| February | 17% | 28% | 69 | 7 °C | 0% | 74% | 9.9 † |
| March | 44% | 26% | 64 | 11 °C | 0% | 46% | 11.7 |
| April | 69% | 21% | 47 | 15 °C | 0% | 16% | 13.8 |
| May | 71% | 28% | 73 | 19 °C | 0% | 2% | 15.5 |
| June | 70% | 26% | 72 | 22 °C | 5% | 0% | 16.5 |
| July | 61% | 30% | 88 | 24 °C | 10% | 0% | 16.1 |
| August | 64% | 28% | 83 | 23 °C | 9% | 0% | 14.6 |
| September | 78% | 21% | 63 | 20 °C | 2% | 0% | 12.6 |
| October | 67% | 26% | 80 | 15 °C | 0% | 9% | 10.6 † |
| November | 33% | 29% | 75 | 10 °C | 0% | 52% | 8.8 † |
| December | 11% | 30% | 87 | 7 °C | 0% | 80% | 7.9 † |
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 Venlo → Köln, km/h | Headwind > 15 km/h, Venlo → Köln | Headwind > 15 km/h, Köln → Venlo | Better way |
|---|---|---|---|---|
| January | 0.0 | 7% | 8% | either |
| February | −0.8 | 8% | 7% | either |
| March | +0.8 | 6% | 9% | either |
| April | +1.5 | 4% | 7% | either |
| May | +2.2 | 2% | 8% | Venlo → Köln |
| June | +3.0 | 1% | 6% | Venlo → Köln |
| July | +3.7 | 1% | 7% | Venlo → Köln |
| August | +2.1 | 2% | 5% | Venlo → Köln |
| September | +0.8 | 3% | 4% | either |
| October | −1.5 | 8% | 5% | either |
| November | −2.0 | 8% | 5% | either |
| December | −1.1 | 8% | 6% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 0–26 | SE | +1.5 |
| 26–52 | E | +3.1 |
| 52–77 | SE | +0.2 |
| 77–104 | S | −1.4 |
Other stages
- Venlo → Köln 104 km
- Köln → Koblenz 109 km
- Koblenz → Frankfurt am Main 133 km
- Frankfurt am Main → Wertheim 126 km
- Wertheim → Würzburg 104 km
- Würzburg → Haßfurt 114 km
- Haßfurt → Kulmbach 112 km
- Kulmbach → Hohenberg an der Eger 107 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.