Danube Cycle Path (Germany), stage 1: Donaueschingen → Riedlingen
On stage 1 (Donaueschingen → Riedlingen, 116 km) the best month is September: 71% of days were dry with highs of 10–30 °C; the wind barely favours either direction (0.9 km/h on average; ERA5 2006–2025, 9:00–18:00).
← Danube Cycle Path (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 | 3% | 23% | 78 | 2 °C | 0% | 96% | 8.8 † |
| February | 11% | 22% | 57 | 4 °C | 0% | 87% | 10.2 † |
| March | 35% | 28% | 68 | 9 °C | 0% | 59% | 11.8 |
| April | 55% | 32% | 74 | 14 °C | 0% | 27% | 13.6 |
| May | 54% | 44% | 122 | 17 °C | 0% | 7% | 15.2 |
| June | 57% | 39% | 114 | 22 °C | 4% | 0% | 16.0 |
| July | 57% | 37% | 122 | 23 °C | 7% | 0% | 15.7 |
| August | 59% | 36% | 117 | 23 °C | 6% | 0% | 14.3 |
| September | 71% | 28% | 82 | 18 °C | 0% | 2% | 12.5 |
| October | 61% | 24% | 71 | 13 °C | 0% | 23% | 10.7 † |
| November | 20% | 22% | 72 | 7 °C | 0% | 76% | 9.2 † |
| December | 3% | 28% | 84 | 3 °C | 0% | 96% | 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 Donaueschingen → Riedlingen, km/h | Headwind > 15 km/h, Donaueschingen → Riedlingen | Headwind > 15 km/h, Riedlingen → Donaueschingen | Better way |
|---|---|---|---|---|
| January | +4.3 | 3% | 16% | Donaueschingen → Riedlingen |
| February | +2.6 | 5% | 13% | Donaueschingen → Riedlingen |
| March | +2.0 | 6% | 15% | either |
| April | +0.1 | 5% | 8% | either |
| May | +0.9 | 6% | 8% | either |
| June | +0.8 | 3% | 5% | either |
| July | +2.6 | 2% | 7% | Donaueschingen → Riedlingen |
| August | +2.4 | 1% | 5% | Donaueschingen → Riedlingen |
| September | +0.9 | 4% | 6% | either |
| October | +1.7 | 2% | 7% | either |
| November | +3.1 | 2% | 10% | Donaueschingen → Riedlingen |
| December | +4.4 | 3% | 12% | Donaueschingen → Riedlingen |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 0–25 | E | +1.4 |
| 25–50 | NE | +0.9 |
| 50–75 | NE | +0.8 |
| 75–101 | E | +0.7 |
| 101–116 | NE | +0.8 |
Other stages
- Donaueschingen → Riedlingen 116 km
- Riedlingen → Lauingen 114 km
- Lauingen → Ingolstadt 108 km
- Ingolstadt → Straubing 132 km
- Straubing → Passau 96 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.