Tailwind Atlas

Via Claudia Augusta, stage 1: Donauwörth → Schongau

On stage 1 (Donauwörth → Schongau, 130 km) the best month is September: 73% of days were dry with highs of 10–30 °C; the wind barely favours either direction (1.0 km/h on average; ERA5 2006–2025, 9:00–18:00).

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

← Via Claudia Augusta (Whole route)

130 kmLength
SeptemberBest months
eitherBetter direction in the best month
1.0 km/hAverage tailwind in the best month
73%Dry days with 10–30 °C
June · 63%Best summer month
Start: Donauwörth · Finish: Schongau · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January7%24%713 °C0%91%8.8 †
February17%22%525 °C0%80%10.1 †
March39%24%5910 °C0%53%11.8
April62%27%6215 °C0%23%13.6
May62%36%11818 °C0%6%15.2
June63%32%10622 °C5%0%16.1
July59%32%10924 °C10%0%15.7
August60%31%11523 °C10%0%14.3
September73%26%8119 °C0%2%12.5
October65%21%6514 °C0%21%10.7 †
November26%20%638 °C0%69%9.1 †
December7%26%724 °C0%90%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 Donauwörth → Schongau, km/hHeadwind > 15 km/h, Donauwörth → SchongauHeadwind > 15 km/h, Schongau → DonauwörthBetter way
January−1.63%1%either
February−0.72%1%either
March+0.62%1%either
April+2.21%1%Donauwörth → Schongau
May+2.21%1%Donauwörth → Schongau
June+2.40%1%Donauwörth → Schongau
July+1.80%0%either
August+1.20%0%either
September+1.00%0%either
October−0.31%0%either
November−1.51%0%either
December−2.72%0%Schongau → Donauwörth

Along the route (sections of about 25 km)

kmHeadingTailwind in September, km/h
0–25S+0.9
25–50S+1.2
50–77SW−0.1
77–102S+1.2
102–130S+1.7

Other stages

  1. Donauwörth → Schongau 130 km
  2. Schongau → Landeck 129 km
  3. Landeck → Merano 140 km
  4. Merano → Rovereto 114 km
  5. Rovereto → Rovereto 54 km
  6. Rovereto → Ostiglia 154 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.