Tailwind Atlas

Appennino Bike Tour, stage 6: Castiglione dei Pepoli → Bibbiena

On stage 6 (Castiglione dei Pepoli → Bibbiena, 114 km) the best month is October: 75% of days were dry with highs of 10–30 °C; the wind barely favours either direction (0.3 km/h on average; ERA5 2006–2025, 9:00–18:00).

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

← Appennino Bike Tour (Whole route)

114 kmLength
September–October (peak October)Best months
eitherBetter direction in the best month
0.3 km/hAverage tailwind in the best month
75%Dry days with 10–30 °C
June · 69%Best summer month
Start: Castiglione dei Pepoli · Finish: Bibbiena · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January12%23%757 °C0%85%9.2 †
February31%29%928 °C0%64%10.4 †
March54%31%9412 °C0%32%11.8
April64%34%8016 °C0%5%13.4
May65%35%9619 °C0%0%14.7
June69%25%5524 °C6%0%15.4
July59%19%4028 °C23%0%15.2
August56%21%4127 °C24%0%14.0
September74%26%7622 °C1%0%12.4
October75%24%9017 °C0%2%10.9 †
November55%27%11012 °C0%27%9.6 †
December18%23%898 °C0%76%8.9 †

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 Castiglione dei Pepoli → Bibbiena, km/hHeadwind > 15 km/h, Castiglione dei Pepoli → BibbienaHeadwind > 15 km/h, Bibbiena → Castiglione dei PepoliBetter way
January−0.20%0%either
February0.00%0%either
March0.00%0%either
April−0.10%0%either
May+0.10%0%either
June+0.30%0%either
July+0.70%0%either
August+0.50%0%either
September+0.10%0%either
October−0.30%0%either
November−0.50%0%either
December−0.30%0%either

Along the route (sections of about 25 km)

kmHeadingTailwind in October, km/h
596–621SE−0.4
621–647SE−0.5
647–672SE−0.2
672–697SE−0.2
697–710SE−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.