Tailwind Atlas

EuroVelo 5 - Via Romea Francigena, stage 20: Acquapendente → Campagnano di Roma

On stage 20 (Acquapendente → Campagnano di Roma, 120 km) the best month is October: 77% of days were dry with highs of 10–30 °C; the wind barely favours either direction (1.2 km/h on average; ERA5 2006–2025, 9:00–18:00).

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

← EuroVelo 5 - Via Romea Francigena (Whole route)

120 kmLength
OctoberBest months
eitherBetter direction in the best month
1.2 km/hAverage tailwind in the best month
77%Dry days with 10–30 °C
June · 55%Best summer month
Start: Acquapendente · Finish: Campagnano di Roma · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January47%24%8110 °C0%41%9.4 †
February57%26%9312 °C0%24%10.5 †
March66%29%9814 °C0%10%11.8
April72%28%7318 °C0%1%13.3
May68%31%8522 °C1%0%14.6
June55%22%5427 °C25%0%15.3
July31%14%3530 °C60%0%15.0
August31%18%3830 °C57%0%13.9
September69%24%9626 °C8%0%12.4
October77%23%10921 °C0%0%11.0 †
November68%28%13515 °C0%5%9.7 †
December55%23%9711 °C0%28%9.1 †

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 Acquapendente → Campagnano di Roma, km/hHeadwind > 15 km/h, Acquapendente → Campagnano di RomaHeadwind > 15 km/h, Campagnano di Roma → AcquapendenteBetter way
January+0.15%4%either
February−0.37%5%either
March−0.87%5%either
April−1.15%2%either
May−1.04%2%either
June−1.03%1%either
July−0.33%1%either
August−0.43%1%either
September−0.84%2%either
October−1.26%3%either
November−1.46%3%either
December+0.35%4%either

Along the route (sections of about 25 km)

kmHeadingTailwind in October, km/h
2,357–2,382SE−1.0
2,382–2,407S−1.1
2,407–2,433S−2.0
2,433–2,458SE−1.0
2,458–2,477SE−1.1

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.