EuroVelo 13 - Iron Curtain Trail - Inner German part, stage 12: Ummerstadt → Probstzella
On stage 12 (Ummerstadt → Probstzella, 124 km) the best month is September: 76% of days were dry with highs of 10–30 °C, and riding Ummerstadt → Probstzella meant an average tailwind of 2.2 km/h (ERA5 2006–2025, 9:00–18:00).
← EuroVelo 13 - Iron Curtain Trail - Inner German part (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 | 2% | 28% | 76 | 2 °C | 0% | 97% | 8.5 † |
| February | 5% | 24% | 55 | 3 °C | 0% | 93% | 10.0 † |
| March | 28% | 25% | 59 | 8 °C | 0% | 68% | 11.7 |
| April | 58% | 25% | 49 | 13 °C | 0% | 30% | 13.7 |
| May | 67% | 31% | 77 | 17 °C | 0% | 7% | 15.4 |
| June | 67% | 30% | 73 | 21 °C | 4% | 0% | 16.4 |
| July | 62% | 29% | 82 | 23 °C | 9% | 0% | 16.0 |
| August | 64% | 29% | 81 | 23 °C | 7% | 0% | 14.5 |
| September | 76% | 23% | 63 | 18 °C | 0% | 2% | 12.5 |
| October | 57% | 24% | 62 | 12 °C | 0% | 28% | 10.6 † |
| November | 16% | 26% | 62 | 6 °C | 0% | 79% | 8.9 † |
| December | 2% | 29% | 78 | 3 °C | 0% | 97% | 8.0 † |
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 Ummerstadt → Probstzella, km/h | Headwind > 15 km/h, Ummerstadt → Probstzella | Headwind > 15 km/h, Probstzella → Ummerstadt | Better way |
|---|---|---|---|---|
| January | +4.4 | 2% | 15% | Ummerstadt → Probstzella |
| February | +3.1 | 3% | 13% | Ummerstadt → Probstzella |
| March | +2.1 | 4% | 11% | Ummerstadt → Probstzella |
| April | +0.5 | 5% | 7% | either |
| May | +0.9 | 5% | 6% | either |
| June | +1.9 | 2% | 6% | either |
| July | +4.0 | 1% | 7% | Ummerstadt → Probstzella |
| August | +3.6 | 0% | 6% | Ummerstadt → Probstzella |
| September | +2.2 | 3% | 6% | Ummerstadt → Probstzella |
| October | +3.2 | 2% | 10% | Ummerstadt → Probstzella |
| November | +3.8 | 1% | 11% | Ummerstadt → Probstzella |
| December | +4.6 | 1% | 13% | Ummerstadt → Probstzella |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 1,350–1,375 | NE | +2.3 |
| 1,375–1,400 | SE | +1.4 |
| 1,400–1,426 | E | +2.1 |
| 1,426–1,451 | NE | +2.6 |
| 1,451–1,474 | NE | +2.8 |
Other stages
- Świnoujście → Universitäts- und Hansestadt Greifswald 106 km
- Universitäts- und Hansestadt Greifswald → Seeheilbad Graal-Müritz 137 km
- Seeheilbad Graal-Müritz → Travemünde 141 km
- Travemünde → Büchen 130 km
- Büchen → Lenzen 118 km
- Lenzen → Wittingen 124 km
- Wittingen → Schöningen 111 km
- Schöningen → Bad Sachsa 121 km
- Bad Sachsa → Eschwege 123 km
- Eschwege → Tann 122 km
- Tann → Ummerstadt 122 km
- Ummerstadt → Probstzella 124 km
- Probstzella → Haag 101 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.