EuroVelo 13 - Iron Curtain Trail - part Austria/Hungary: which way and when to ride
The best month for EuroVelo 13 - Iron Curtain Trail - part Austria/Hungary is September: 79% of days were dry with highs of 10–30 °C. In September the wind barely favours either direction — on average 0.7 km/h along the route (ERA5 2006–2025, daytime 9:00–18:00).
Also passes through Hungary
Weather by month
| Month | Good days | Rain days ≥ 1 mm | Rain, mm | Avg high | Days ≥ 30 °C | Days < 10 °C | Daylight, h |
|---|---|---|---|---|---|---|---|
| January | 9% | 14% | 38 | 4 °C | 0% | 90% | 8.8 † |
| February | 24% | 15% | 36 | 6 °C | 0% | 73% | 10.2 † |
| March | 53% | 15% | 41 | 11 °C | 0% | 41% | 11.8 |
| April | 74% | 18% | 44 | 17 °C | 0% | 12% | 13.6 |
| May | 70% | 29% | 85 | 20 °C | 1% | 1% | 15.1 |
| June | 62% | 24% | 75 | 25 °C | 15% | 0% | 15.9 |
| July | 51% | 24% | 72 | 27 °C | 30% | 0% | 15.6 |
| August | 57% | 22% | 82 | 27 °C | 24% | 0% | 14.2 |
| September | 79% | 19% | 82 | 21 °C | 2% | 0% | 12.5 |
| October | 78% | 15% | 55 | 16 °C | 0% | 10% | 10.8 † |
| November | 38% | 16% | 49 | 9 °C | 0% | 57% | 9.2 † |
| December | 7% | 15% | 40 | 5 °C | 0% | 92% | 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 Kittsee → near Szentgotthárd, km/h | Headwind > 15 km/h, Kittsee → near Szentgotthárd | Headwind > 15 km/h, near Szentgotthárd → Kittsee | Better way |
|---|---|---|---|---|
| January | −0.5 | 6% | 7% | either |
| February | +0.5 | 8% | 10% | either |
| March | +0.9 | 10% | 12% | either |
| April | +1.3 | 10% | 13% | either |
| May | +1.9 | 7% | 12% | either |
| June | +1.7 | 6% | 9% | either |
| July | +1.3 | 5% | 8% | either |
| August | +0.6 | 5% | 6% | either |
| September | +0.7 | 6% | 7% | either |
| October | −0.9 | 8% | 6% | either |
| November | −1.8 | 9% | 5% | either |
| December | −1.2 | 7% | 6% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 0–25 | S | +1.5 |
| 25–51 | S | +1.4 |
| 51–76 | SW | +0.8 |
| 76–101 | SW | +0.3 |
| 101–127 | NW | −2.7 |
| 127–152 | W | −1.4 |
| 152–177 | S | +1.9 |
| 177–202 | SE | +2.4 |
| 202–227 | SW | +0.8 |
| 227–252 | S | +1.2 |
| 252–278 | S | +1.3 |
| 278–303 | SW | +0.9 |
| 303–310 | SW | +0.7 |
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.