Tailwind Atlas

Appennino Bike Tour, stage 9: Spoleto → Arquata del Tronto

On stage 9 (Spoleto → Arquata del Tronto, 118 km) the best month is October: 71% of days were dry with highs of 10–30 °C; the wind barely favours either direction (0.4 km/h on average; ERA5 2006–2025, 9:00–18:00).

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

← Appennino Bike Tour (Whole route)

118 kmLength
OctoberBest months
eitherBetter direction in the best month
0.4 km/hAverage tailwind in the best month
71%Dry days with 10–30 °C
June · 62%Best summer month
Start: Spoleto · Finish: Arquata del Tronto · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January11%27%796 °C0%87%9.4 †
February26%29%787 °C0%71%10.5 †
March41%37%10910 °C0%48%11.8
April54%41%8714 °C0%15%13.3
May55%44%11218 °C0%2%14.6
June62%33%7323 °C5%0%15.3
July61%24%5326 °C17%0%15.0
August58%27%5326 °C16%0%13.9
September68%32%8321 °C1%0%12.4
October71%26%7917 °C0%6%10.9 †
November52%30%10711 °C0%33%9.7 †
December15%24%857 °C0%81%9.0 †

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 Spoleto → Arquata del Tronto, km/hHeadwind > 15 km/h, Spoleto → Arquata del TrontoHeadwind > 15 km/h, Arquata del Tronto → SpoletoBetter way
January0.01%1%either
February+0.11%1%either
March+0.32%2%either
April+0.71%1%either
May+1.31%1%either
June+1.90%1%either
July+2.20%2%Spoleto → Arquata del Tronto
August+1.60%1%either
September+0.80%1%either
October+0.41%1%either
November+0.50%1%either
December+0.10%1%either

Along the route (sections of about 25 km)

kmHeadingTailwind in October, km/h
928–953NE+1.1
953–978NE+1.0
978–1,003SE0.0
1,003–1,029E−0.2
1,029–1,046SE−0.2

Other stages

  1. Bocchetta di Altare → Ronco Scrivia 118 km
  2. Ronco Scrivia → Farini 118 km
  3. Farini → Monchio delle Corti 118 km
  4. Monchio delle Corti → Pievepelago 118 km
  5. Pievepelago → Castiglione dei Pepoli 124 km
  6. Castiglione dei Pepoli → Bibbiena 114 km
  7. Bibbiena → Gubbio 120 km
  8. Gubbio → Spoleto 100 km
  9. Spoleto → Arquata del Tronto 118 km
  10. Arquata del Tronto → Paganica-Tempera 144 km
  11. Paganica-Tempera → Castel di Sangro 152 km
  12. Castel di Sangro → Guardiaregia 118 km
  13. Guardiaregia → Sant'Angelo dei Lombardi 116 km
  14. Sant'Angelo dei Lombardi → Pignola 112 km
  15. Pignola → San Brancato 136 km
  16. San Brancato → Mormanno 110 km
  17. Mormanno → San Marco Argentano 118 km
  18. San Marco Argentano → Spezzano della Sila 114 km
  19. Spezzano della Sila → Borgia 118 km
  20. Borgia → Fabrizia 110 km
  21. Fabrizia → Villa San Giovanni 121 km
  22. Villa San Giovanni → Alia 2 km
  23. Alia → Gangi 99 km
  24. Gangi → Bronte 108 km
  25. Bronte → Gaggi 110 km
  26. Gaggi → Alia 164 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.