Tailwind Atlas

La Vélidéale, stage 2: Aixe-sur-Vienne → Ruffec

On stage 2 (Aixe-sur-Vienne → Ruffec, 136 km) the best month is September: 73% of days were dry with highs of 10–30 °C; the wind barely favours either direction (1.1 km/h on average; ERA5 2006–2025, 9:00–18:00).

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

← La Vélidéale (Whole route)

136 kmLength
April, September–October (peak September)Best months
eitherBetter direction in the best month
1.1 km/hAverage tailwind in the best month
73%Dry days with 10–30 °C
August · 68%Best summer month
Start: Aixe-sur-Vienne · Finish: Ruffec · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January20%28%928 °C0%66%9.0 †
February39%27%7410 °C0%47%10.3 †
March57%30%8413 °C0%22%11.8
April71%28%7617 °C0%4%13.5
May66%34%9120 °C1%0%14.9
June65%26%8224 °C9%0%15.7
July68%17%4826 °C17%0%15.4
August68%14%5026 °C18%0%14.1
September73%21%6322 °C6%0%12.5
October72%26%9418 °C0%2%10.8 †
November48%31%9412 °C0%27%9.4 †
December28%27%939 °C0%55%8.7 †

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 Aixe-sur-Vienne → Ruffec, km/hHeadwind > 15 km/h, Aixe-sur-Vienne → RuffecHeadwind > 15 km/h, Ruffec → Aixe-sur-VienneBetter way
January−0.99%5%either
February−1.110%5%either
March−1.312%5%either
April−0.77%4%either
May−2.29%3%Ruffec → Aixe-sur-Vienne
June−2.15%2%Ruffec → Aixe-sur-Vienne
July−3.57%1%Ruffec → Aixe-sur-Vienne
August−3.26%1%Ruffec → Aixe-sur-Vienne
September−1.16%3%either
October+0.45%5%either
November−0.57%5%either
December−0.49%6%either

Along the route (sections of about 25 km)

kmHeadingTailwind in September, km/h
100–125W−1.4
125–150W−1.4
150–175N−0.5
175–201W−1.1
201–226W−1.2
226–236N−1.2

Other stages

  1. Royère-de-Vassivière → Aixe-sur-Vienne 100 km
  2. Aixe-sur-Vienne → Ruffec 136 km
  3. Ruffec → Niort 114 km
  4. Niort → Nueil-les-Aubiers 104 km
  5. Nueil-les-Aubiers → Nantes 132 km
  6. Nantes → Saint-Nazaire 88 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.