EuroVelo 13 - Iron Curtain Trail - part Germany/Czech Republic, stage 1: Haag → Bärnau
On stage 1 (Haag → Bärnau, 136 km) the best month is September: 77% of days were dry with highs of 10–30 °C; the wind barely favours either direction (0.4 km/h on average; ERA5 2006–2025, 9:00–18:00).
← EuroVelo 13 - Iron Curtain Trail - part Germany/Czech Republic (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 | 1% | 27% | 65 | 1 °C | 0% | 99% | 8.5 † |
| February | 4% | 22% | 47 | 3 °C | 0% | 96% | 10.0 † |
| March | 26% | 25% | 53 | 7 °C | 0% | 71% | 11.7 |
| April | 56% | 26% | 50 | 13 °C | 0% | 32% | 13.7 |
| May | 62% | 34% | 76 | 16 °C | 0% | 9% | 15.4 |
| June | 67% | 31% | 73 | 21 °C | 2% | 1% | 16.4 |
| July | 63% | 31% | 82 | 23 °C | 5% | 0% | 16.0 |
| August | 66% | 30% | 83 | 22 °C | 5% | 0% | 14.5 |
| September | 77% | 21% | 62 | 17 °C | 0% | 4% | 12.5 |
| October | 53% | 23% | 55 | 12 °C | 0% | 35% | 10.6 † |
| November | 13% | 21% | 56 | 6 °C | 0% | 85% | 8.9 † |
| December | 1% | 24% | 64 | 2 °C | 0% | 99% | 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 Haag → Bärnau, km/h | Headwind > 15 km/h, Haag → Bärnau | Headwind > 15 km/h, Bärnau → Haag | Better way |
|---|---|---|---|---|
| January | −0.3 | 5% | 6% | either |
| February | −0.3 | 4% | 6% | either |
| March | +0.8 | 5% | 6% | either |
| April | +1.3 | 3% | 6% | either |
| May | +1.3 | 3% | 6% | either |
| June | +1.8 | 1% | 4% | either |
| July | +2.0 | 1% | 4% | Haag → Bärnau |
| August | +0.6 | 1% | 2% | either |
| September | +0.4 | 2% | 4% | either |
| October | −0.9 | 3% | 3% | either |
| November | −1.5 | 3% | 3% | either |
| December | −1.4 | 5% | 4% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 0–25 | SE | +0.6 |
| 25–50 | S | 0.0 |
| 50–76 | SE | +1.3 |
| 76–101 | SE | +2.0 |
| 101–126 | SW | −1.3 |
| 126–136 | SW | −1.1 |
Other stages
- Haag → Bärnau 136 km
- Bärnau → Furth im Wald 115 km
- Furth im Wald → Nová Pec 161 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.