EuroVelo 15 – Rhine Cycle Route, stage 4: Rheinfelden → Strasbourg
On stage 4 (Rheinfelden → Strasbourg, 146 km) the best month is September: 76% of days were dry with highs of 10–30 °C; the wind barely favours either direction (0.2 km/h on average; ERA5 2006–2025, 9:00–18:00).
← EuroVelo 15 – Rhine Cycle Route (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 | 9% | 26% | 79 | 5 °C | 0% | 85% | 8.8 † |
| February | 23% | 25% | 61 | 7 °C | 0% | 71% | 10.2 † |
| March | 49% | 25% | 66 | 11 °C | 0% | 40% | 11.8 |
| April | 66% | 27% | 65 | 16 °C | 0% | 15% | 13.6 |
| May | 63% | 35% | 94 | 19 °C | 1% | 1% | 15.2 |
| June | 62% | 28% | 85 | 24 °C | 11% | 0% | 16.0 |
| July | 54% | 29% | 84 | 26 °C | 20% | 0% | 15.7 |
| August | 56% | 27% | 87 | 25 °C | 19% | 0% | 14.3 |
| September | 76% | 21% | 69 | 21 °C | 3% | 0% | 12.5 |
| October | 72% | 22% | 71 | 16 °C | 0% | 10% | 10.7 † |
| November | 32% | 24% | 77 | 9 °C | 0% | 57% | 9.2 † |
| December | 9% | 29% | 88 | 6 °C | 0% | 84% | 8.4 † |
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 Rheinfelden → Strasbourg, km/h | Headwind > 15 km/h, Rheinfelden → Strasbourg | Headwind > 15 km/h, Strasbourg → Rheinfelden | Better way |
|---|---|---|---|---|
| January | +2.8 | 2% | 9% | Rheinfelden → Strasbourg |
| February | +2.1 | 4% | 8% | Rheinfelden → Strasbourg |
| March | 0.0 | 4% | 6% | either |
| April | −1.8 | 4% | 3% | either |
| May | −1.5 | 4% | 2% | either |
| June | −1.6 | 2% | 1% | either |
| July | −0.7 | 1% | 1% | either |
| August | +0.1 | 1% | 2% | either |
| September | −0.2 | 2% | 2% | either |
| October | +1.8 | 2% | 4% | either |
| November | +2.9 | 1% | 6% | Rheinfelden → Strasbourg |
| December | +3.9 | 1% | 8% | Rheinfelden → Strasbourg |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 368–393 | W | −0.9 |
| 393–418 | N | −0.7 |
| 418–444 | N | +0.1 |
| 444–469 | N | −0.1 |
| 469–494 | NE | +0.1 |
| 494–514 | N | +0.2 |
Other stages
- Andermatt → Buchs 130 km
- Buchs → Konstanz 106 km
- Konstanz → Rheinfelden 133 km
- Rheinfelden → Strasbourg 146 km
- Strasbourg → Speyer 130 km
- Speyer → Mainz 110 km
- Mainz → Neuwied 118 km
- Neuwied → Düsseldorf 137 km
- Düsseldorf → Kleve 124 km
- Kleve → Gorinchem 96 km
- Gorinchem → Hoek van Holland 115 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.