Tailwind Atlas

Drau cycle path: which way and when to ride

The best month for Drau cycle path is September: 67% 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

502 kmLength
September–October (peak September)Best months
eitherBetter direction in the best month
0.7 km/hAverage tailwind in the best month
67%Dry days with 10–30 °C
August · 53%Best summer month
Start: Toblach · Finish: Legrad · Route geometry: OpenStreetMap / Waymarked Trails

Also passes through Slovenia, Croatia

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January5%15%582 °C0%94%8.9 †
February15%19%664 °C0%84%10.2 †
March35%22%759 °C0%61%11.8
April54%30%8014 °C0%29%13.5
May51%46%13717 °C0%10%15.0
June50%44%12522 °C6%1%15.8
July48%43%12924 °C11%0%15.5
August53%38%13423 °C10%0%14.2
September67%30%12719 °C1%4%12.5
October65%20%9514 °C0%22%10.8 †
November24%22%977 °C0%72%9.3 †
December4%16%693 °C0%95%8.6 †

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 Toblach → Legrad, km/hHeadwind > 15 km/h, Toblach → LegradHeadwind > 15 km/h, Legrad → ToblachBetter way
January+1.20%0%either
February+0.50%0%either
March+0.10%1%either
April0.00%1%either
May−0.30%0%either
June−0.50%0%either
July−0.50%0%either
August−1.10%0%either
September−0.70%0%either
October+0.20%0%either
November+0.60%0%either
December+1.30%0%either

Stages

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

StagekmBest monthTailwind Toblach → Legrad in September, km/h
1. Toblach → Spittal an der Drau124September−0.4
2. Spittal an der Drau → Völkermarkt124September−1.0
3. Völkermarkt → Maribor116October−0.7
4. Maribor → Legrad137October−0.8

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