Tailwind Atlas

EuroVelo 5 - Via Romea Francigena, stage 4: Lessines → Wavre

On stage 4 (Lessines → Wavre, 125 km) the best month is September: 76% of days were dry with highs of 10–30 °C, and riding Lessines → Wavre meant an average tailwind of 3.1 km/h (ERA5 2006–2025, 9:00–18:00).

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

← EuroVelo 5 - Via Romea Francigena (Whole route)

125 kmLength
June, September (peak September)Best months
Lessines → WavreBetter direction in the best month
3.1 km/hAverage tailwind in the best month
76%Dry days with 10–30 °C
June · 74%Best summer month
Start: Lessines · Finish: Wavre · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January8%26%706 °C0%84%8.4 †
February17%29%617 °C0%73%9.9 †
March47%24%5811 °C0%44%11.7
April69%22%4315 °C0%16%13.7
May73%26%6618 °C0%2%15.5
June74%24%7121 °C2%0%16.5
July68%27%6923 °C6%0%16.1
August66%28%7623 °C6%0%14.5
September76%23%5520 °C1%0%12.5
October73%23%6815 °C0%6%10.6 †
November38%27%6610 °C0%48%8.8 †
December14%24%737 °C0%76%8.0 †

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 Lessines → Wavre, km/hHeadwind > 15 km/h, Lessines → WavreHeadwind > 15 km/h, Wavre → LessinesBetter way
January+5.24%22%Lessines → Wavre
February+3.87%20%Lessines → Wavre
March+2.88%18%Lessines → Wavre
April+1.27%12%either
May+3.04%15%Lessines → Wavre
June+3.72%14%Lessines → Wavre
July+5.81%18%Lessines → Wavre
August+5.31%16%Lessines → Wavre
September+3.14%13%Lessines → Wavre
October+3.24%15%Lessines → Wavre
November+4.24%17%Lessines → Wavre
December+5.24%21%Lessines → Wavre

Along the route (sections of about 25 km)

kmHeadingTailwind in September, km/h
360–385NE+4.2
385–410E+3.7
410–436NE+4.4
436–461E+2.7
461–485SE+0.3

Other stages

  1. Canterbury → Audruicq 114 km
  2. Audruicq → Lens 115 km
  3. Lens → Lessines 121 km
  4. Lessines → Wavre 125 km
  5. Wavre → Marche-en-Famenne 126 km
  6. Marche-en-Famenne → Eischen 132 km
  7. Eischen → Saarlouis 120 km
  8. Saarlouis → Saverne 147 km
  9. Saverne → Châtenois 120 km
  10. Châtenois → Mulhouse 116 km
  11. Mulhouse → Luzern 113 km
  12. Luzern → Airolo 117 km
  13. Airolo → Como 139 km
  14. Como → Pavia 121 km
  15. Pavia → Fidenza 128 km
  16. Fidenza → Sarzana 133 km
  17. Sarzana → San Miniato Basso 121 km
  18. San Miniato Basso → Siena 96 km
  19. Siena → Acquapendente 121 km
  20. Acquapendente → Campagnano di Roma 120 km
  21. Campagnano di Roma → Valmontone 93 km
  22. Valmontone → Frosinone 104 km
  23. Frosinone → Cassino 119 km
  24. Cassino → Benevento 121 km
  25. Benevento → Venosa 133 km
  26. Venosa → Castellaneta 122 km
  27. Castellaneta → Brindisi 122 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.