EuroVelo 13 - Iron Curtain Trail - part Austria/Czech Republic, stage 4: Znojmo → Hohenau an der March
On stage 4 (Znojmo → Hohenau an der March, 148 km) the best month is September: 80% 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).
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Weather by month
| Month | Good days | Rain days ≥ 1 mm | Rain, mm | Avg high | Days ≥ 30 °C | Days < 10 °C | Daylight, h |
|---|---|---|---|---|---|---|---|
| January | 6% | 13% | 33 | 3 °C | 0% | 93% | 8.7 † |
| February | 18% | 12% | 28 | 6 °C | 0% | 80% | 10.1 † |
| March | 47% | 14% | 34 | 10 °C | 0% | 47% | 11.7 |
| April | 74% | 16% | 38 | 16 °C | 0% | 15% | 13.6 |
| May | 74% | 25% | 69 | 20 °C | 1% | 1% | 15.2 |
| June | 65% | 24% | 81 | 25 °C | 13% | 0% | 16.1 |
| July | 55% | 23% | 72 | 27 °C | 27% | 0% | 15.8 |
| August | 59% | 21% | 74 | 26 °C | 23% | 0% | 14.3 |
| September | 80% | 17% | 77 | 21 °C | 3% | 0% | 12.5 |
| October | 76% | 15% | 40 | 15 °C | 0% | 13% | 10.7 † |
| November | 31% | 12% | 35 | 8 °C | 0% | 65% | 9.1 † |
| December | 6% | 14% | 34 | 4 °C | 0% | 93% | 8.3 † |
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 Znojmo → Hohenau an der March, km/h | Headwind > 15 km/h, Znojmo → Hohenau an der March | Headwind > 15 km/h, Hohenau an der March → Znojmo | Better way |
|---|---|---|---|---|
| January | +1.7 | 4% | 12% | either |
| February | +1.6 | 6% | 12% | either |
| March | +1.6 | 6% | 12% | either |
| April | +0.7 | 6% | 9% | either |
| May | +0.5 | 6% | 8% | either |
| June | +1.5 | 3% | 7% | either |
| July | +2.8 | 2% | 9% | Znojmo → Hohenau an der March |
| August | +0.9 | 2% | 5% | either |
| September | +0.4 | 4% | 7% | either |
| October | −0.4 | 7% | 7% | either |
| November | −0.7 | 8% | 8% | either |
| December | +0.5 | 5% | 9% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 350–375 | SW | +0.9 |
| 375–401 | E | +0.4 |
| 401–426 | E | +0.1 |
| 426–452 | E | −0.1 |
| 452–478 | SE | +0.6 |
| 478–498 | SE | +0.6 |
Other stages
- Nová Pec → near Freistadt 125 km
- near Freistadt → Slavonice 126 km
- Slavonice → Znojmo 100 km
- Znojmo → Hohenau an der March 148 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.