Tailwind Atlas

Vážska cyklomagistrála: which way and when to ride

The best month for Vážska cyklomagistrála is September: 76% of days were dry with highs of 10–30 °C. In September the wind barely favours either direction — on average 0.5 km/h along the route (ERA5 2006–2025, daytime 9:00–18:00).

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

251 kmLength
SeptemberBest months
eitherBetter direction in the best month
0.5 km/hAverage tailwind in the best month
76%Dry days with 10–30 °C
June · 60%Best summer month
Start: Komárno · Finish: Varín · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January4%20%522 °C0%96%8.7 †
February13%20%465 °C0%85%10.1 †
March42%19%4810 °C0%51%11.7
April69%21%4616 °C0%17%13.6
May67%31%8519 °C1%2%15.2
June60%29%8124 °C12%0%16.1
July52%28%8226 °C24%0%15.8
August57%24%8526 °C21%0%14.3
September76%21%7921 °C3%1%12.5
October73%16%5714 °C0%16%10.7 †
November32%19%538 °C0%63%9.1 †
December3%17%483 °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 Komárno → Varín, km/hHeadwind > 15 km/h, Komárno → VarínHeadwind > 15 km/h, Varín → KomárnoBetter way
January+0.38%4%either
February−0.410%6%either
March−0.812%7%either
April−1.012%7%either
May−1.613%5%either
June−1.811%4%either
July−1.510%3%either
August−0.16%3%either
September−0.59%5%either
October+1.37%7%either
November+2.15%7%Komárno → Varín
December+0.96%5%either

Along the route (sections of about 25 km)

kmHeadingTailwind in September, km/h
0–25NW−2.2
25–50N−1.6
50–76NW−1.6
76–88N−1.2
88–116N−0.7
116–142N−0.5
142–169NE+0.2
169–194NE+0.2
194–220NE+0.6
220–245E+1.1
245–251SE+1.1

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