Tailwind Atlas

Paneuropa Route, stage 2: Épernay → Ligny-en-Barrois

On stage 2 (Épernay → Ligny-en-Barrois, 85 km) the best month is September: 77% of days were dry with highs of 10–30 °C; the wind barely favours either direction (0.8 km/h on average; ERA5 2006–2025, 9:00–18:00).

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

← Paneuropa Route (Whole route)

85 kmLength
SeptemberBest months
eitherBetter direction in the best month
0.8 km/hAverage tailwind in the best month
77%Dry days with 10–30 °C
June · 69%Best summer month
Start: Épernay · Finish: Ligny-en-Barrois · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January8%27%826 °C0%82%8.7 †
February22%26%658 °C0%69%10.1 †
March50%26%6611 °C0%37%11.7
April69%24%5216 °C0%11%13.6
May70%29%7819 °C0%1%15.2
June69%24%6923 °C8%0%16.2
July67%20%6325 °C15%0%15.8
August68%20%6924 °C13%0%14.4
September77%20%6321 °C3%0%12.5
October73%21%7716 °C0%7%10.7 †
November36%26%7610 °C0%48%9.1 †
December13%28%927 °C0%76%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 Épernay → Ligny-en-Barrois, km/hHeadwind > 15 km/h, Épernay → Ligny-en-BarroisHeadwind > 15 km/h, Ligny-en-Barrois → ÉpernayBetter way
January+0.43%6%either
February0.05%6%either
March+0.84%8%either
April+0.83%4%either
May+2.42%6%Épernay → Ligny-en-Barrois
June+2.71%4%Épernay → Ligny-en-Barrois
July+3.61%5%Épernay → Ligny-en-Barrois
August+2.91%4%Épernay → Ligny-en-Barrois
September+0.82%4%either
October−1.24%3%either
November−1.04%4%either
December−0.33%6%either

Along the route (sections of about 25 km)

kmHeadingTailwind in September, km/h
129–158E+1.4
158–184SE+0.2
184–192SE+0.2
192–214SE+0.8

Other stages

  1. Paris → Épernay 59 km
  2. Épernay → Ligny-en-Barrois 85 km
  3. Ligny-en-Barrois → Dombasle-sur-Meurthe 70 km
  4. Dombasle-sur-Meurthe → Strasbourg 132 km
  5. Strasbourg → Bruchsal 112 km
  6. Bruchsal → Heilbronn 147 km
  7. Heilbronn → Rothenburg ob der Tauber 127 km
  8. Rothenburg ob der Tauber → Nuremberg 96 km
  9. Nuremberg → Weiden 126 km
  10. Weiden → Stříbro 125 km
  11. Stříbro → Hořovice 134 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.