Tailwind Atlas

EuroVelo 3 - Pilgrim's Route - part Spain, stage 6: Astorga → near Sarria

On stage 6 (Astorga → near Sarria, 122 km) the best month is September: 79% of days were dry with highs of 10–30 °C, and riding near Sarria → Astorga meant an average tailwind of 2.3 km/h (ERA5 2006–2025, 9:00–18:00).

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

← EuroVelo 3 - Pilgrim's Route - part Spain (Whole route)

122 kmLength
August–September (peak September)Best months
near Sarria → AstorgaBetter direction in the best month
2.3 km/hAverage tailwind in the best month
79%Dry days with 10–30 °C
August · 77%Best summer month
Start: Astorga · Finish: near Sarria · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January24%30%1178 °C0%72%9.4 †
February40%30%989 °C0%56%10.5 †
March50%35%9912 °C0%39%11.8
April57%39%8915 °C0%19%13.3
May67%33%7218 °C0%4%14.6
June68%28%6121 °C4%0%15.3
July76%13%2325 °C12%0%15.0
August77%12%2325 °C13%0%13.9
September79%20%4822 °C2%0%12.4
October73%26%10617 °C0%3%11.0 †
November45%33%11811 °C0%39%9.7 †
December26%27%1109 °C0%68%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 Astorga → near Sarria, km/hHeadwind > 15 km/h, Astorga → near SarriaHeadwind > 15 km/h, near Sarria → AstorgaBetter way
January−2.16%0%near Sarria → Astorga
February−2.17%1%near Sarria → Astorga
March−2.18%3%near Sarria → Astorga
April−2.35%2%near Sarria → Astorga
May−3.45%1%near Sarria → Astorga
June−4.03%0%near Sarria → Astorga
July−5.04%0%near Sarria → Astorga
August−4.64%0%near Sarria → Astorga
September−2.33%1%near Sarria → Astorga
October−0.93%1%either
November−1.96%1%either
December−0.95%0%either

Along the route (sections of about 25 km)

kmHeadingTailwind in September, km/h
590–615W−2.1
615–640W−2.3
640–666W−2.3
666–691NW−2.3
691–712W−2.3

Other stages

  1. near Orbara → Puente la Reina 122 km
  2. Puente la Reina → Nájera 110 km
  3. Nájera → Burgos 122 km
  4. Burgos → Sahagún 123 km
  5. Sahagún → Astorga 117 km
  6. Astorga → near Sarria 122 km
  7. near Sarria → Arzúa 123 km
  8. Arzúa → Fisterra 140 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.