Tailwind Atlas

EuroVelo 3 - Pilgrim's Route - part Spain, stage 7: near Sarria → Arzúa

On stage 7 (near Sarria → Arzúa, 123 km) the best month is July: 83% of days were dry with highs of 10–30 °C, and riding Arzúa → near Sarria meant an average tailwind of 3.9 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)

123 kmLength
JulyBest months
Arzúa → near SarriaBetter direction in the best month
3.9 km/hAverage tailwind in the best month
83%Dry days with 10–30 °C
July · 83%Best summer month
Start: near Sarria · Finish: Arzúa · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January39%34%13610 °C0%46%9.4 †
February51%33%11011 °C0%36%10.5 †
March57%36%11313 °C0%22%11.8
April60%39%9816 °C0%8%13.3
May67%33%7918 °C0%1%14.6
June71%26%6621 °C3%0%15.3
July83%12%2324 °C6%0%15.0
August80%13%3024 °C7%0%13.9
September79%19%5522 °C2%0%12.4
October70%30%13118 °C0%1%10.9 †
November56%37%13913 °C0%17%9.7 †
December45%30%12811 °C0%38%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 near Sarria → Arzúa, km/hHeadwind > 15 km/h, near Sarria → ArzúaHeadwind > 15 km/h, Arzúa → near SarriaBetter way
January−1.57%1%either
February−1.88%1%either
March−2.09%3%Arzúa → near Sarria
April−2.36%1%Arzúa → near Sarria
May−3.05%1%Arzúa → near Sarria
June−3.74%1%Arzúa → near Sarria
July−3.95%0%Arzúa → near Sarria
August−3.44%1%Arzúa → near Sarria
September−1.83%1%either
October−0.83%1%either
November−1.57%1%either
December−0.35%1%either

Along the route (sections of about 25 km)

kmHeadingTailwind in July, km/h
712–737W−5.0
737–762W−3.5
762–788W−4.5
788–813W−3.9
813–835W−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.