Tailwind Atlas

EuroVelo 13 – Iron Curtain Trail (Finland), stage 3: near Sodankylä → Pyhäjärvi

On stage 3 (near Sodankylä → Pyhäjärvi, 137 km) the best month is July: 67% 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

← EuroVelo 13 – Iron Curtain Trail (Finland) (Whole route)

137 kmLength
July–August (peak July)Best months
eitherBetter direction in the best month
0.4 km/hAverage tailwind in the best month
67%Dry days with 10–30 °C
July · 67%Best summer month
Start: near Sodankylä · Finish: Pyhäjärvi · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January0%17%33-9 °C0%100%3.5 †
February0%15%26-8 °C0%100%7.7 †
March0%14%28-2 °C0%100%11.4
April5%15%333 °C0%95%15.5
May38%22%4910 °C0%55%19.9
June61%30%7415 °C0%15%24.0
July67%31%8519 °C0%2%23.1
August66%29%7816 °C0%6%17.2
September42%24%6411 °C0%45%13.0
October1%22%603 °C0%98%9.1 †
November0%19%42-3 °C0%100%4.9 †
December0%19%41-6 °C0%100%0.0 †

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 Sodankylä → Pyhäjärvi, km/hHeadwind > 15 km/h, near Sodankylä → PyhäjärviHeadwind > 15 km/h, Pyhäjärvi → near SodankyläBetter way
January−2.78%3%Pyhäjärvi → near Sodankylä
February−3.59%2%Pyhäjärvi → near Sodankylä
March−1.57%5%either
April+0.45%7%either
May−0.25%6%either
June+1.04%7%either
July−0.43%4%either
August−2.06%3%either
September−2.79%4%Pyhäjärvi → near Sodankylä
October−2.17%4%Pyhäjärvi → near Sodankylä
November−3.27%2%Pyhäjärvi → near Sodankylä
December−3.38%2%Pyhäjärvi → near Sodankylä

Along the route (sections of about 25 km)

kmHeadingTailwind in July, km/h
261–286SW+0.2
286–312S−0.3
312–337S−0.5
337–362S−0.6
362–387SE−0.6
387–398SE−0.5

Other stages

  1. Näätämö → Inari 142 km
  2. Inari → near Sodankylä 120 km
  3. near Sodankylä → Pyhäjärvi 137 km
  4. Pyhäjärvi → Salla 142 km
  5. Salla → Kuusamo 119 km
  6. Kuusamo → near Kostomuksha 119 km
  7. near Kostomuksha → near Kostomuksha 119 km
  8. near Kostomuksha → near Lieksa 119 km
  9. near Lieksa → near Lieksa 120 km
  10. near Lieksa → near Tuupovaara 119 km
  11. near Tuupovaara → Kesälahti 125 km
  12. Kesälahti → Imatra 142 km
  13. Imatra → Vaalimaa 146 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.