Tailwind Atlas

EuroVelo 13 - Iron Curtain Trail - part Austria/Czech Republic: which way and when to ride

The best month for EuroVelo 13 - Iron Curtain Trail - part Austria/Czech Republic is September: 77% 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).

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

499 kmLength
SeptemberBest months
eitherBetter direction in the best month
0.7 km/hAverage tailwind in the best month
77%Dry days with 10–30 °C
June · 64%Best summer month
Start: Nová Pec · Finish: Hohenau an der March · Route geometry: OpenStreetMap / Waymarked Trails

Also passes through Czechia

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January4%18%452 °C0%96%8.7 †
February12%15%334 °C0%87%10.1 †
March38%18%429 °C0%58%11.7
April65%22%4715 °C0%22%13.6
May66%32%8718 °C0%5%15.2
June64%30%9523 °C7%0%16.1
July58%30%9225 °C15%0%15.8
August62%27%8724 °C13%0%14.3
September77%21%7719 °C1%3%12.5
October67%18%4513 °C0%23%10.7 †
November23%15%427 °C0%74%9.1 †
December3%17%423 °C0%96%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

MonthWind Nová Pec → Hohenau an der March, km/hHeadwind > 15 km/h, Nová Pec → Hohenau an der MarchHeadwind > 15 km/h, Hohenau an der March → Nová PecBetter way
January+3.53%16%Nová Pec → Hohenau an der March
February+2.64%14%Nová Pec → Hohenau an der March
March+2.16%13%Nová Pec → Hohenau an der March
April+0.55%9%either
May+0.36%8%either
June+1.22%6%either
July+3.11%9%Nová Pec → Hohenau an der March
August+1.41%5%either
September+0.74%7%either
October+0.85%8%either
November+1.25%10%either
December+2.74%12%Nová Pec → Hohenau an der March

Stages

The route is split into 4 stages of about 100–150 km between towns; each stage has its own page.

StagekmBest monthTailwind Nová Pec → Hohenau an der March in September, km/h
1. Nová Pec → near Freistadt125September+1.4
2. near Freistadt → Slavonice126September+0.3
3. Slavonice → Znojmo100September+0.8
4. Znojmo → Hohenau an der March148September+0.4

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.

OpenStreetMap · Waymarked Trails