Tailwind Atlas

EuroVelo 13 – Iron Curtain Trail (Finland), stage 1: Näätämö → Inari

On stage 1 (Näätämö → Inari, 142 km) the best month is July: 73% of days were dry with highs of 10–30 °C; the wind barely favours either direction (1.4 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)

142 kmLength
JulyBest months
eitherBetter direction in the best month
1.4 km/hAverage tailwind in the best month
73%Dry days with 10–30 °C
July · 73%Best summer month
Start: Näätämö · Finish: Inari · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January0%11%26-8 °C0%100%1.3 †
February0%12%21-7 °C0%100%7.3 †
March0%12%24-3 °C0%100%11.3
April1%12%282 °C0%99%15.8
May25%19%478 °C0%72%21.4
June58%24%6213 °C0%27%24.0
July73%23%6917 °C0%5%24.0
August70%24%6915 °C0%8%17.8
September44%23%6011 °C0%46%13.1
October2%19%493 °C0%97%8.8 †
November0%14%32-2 °C0%100%3.9 †
December0%15%33-5 °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 Näätämö → Inari, km/hHeadwind > 15 km/h, Näätämö → InariHeadwind > 15 km/h, Inari → NäätämöBetter way
January−5.217%2%Inari → Näätämö
February−6.319%2%Inari → Näätämö
March−5.116%2%Inari → Näätämö
April−1.58%6%either
May0.08%8%either
June+1.85%8%either
July+1.46%8%either
August−1.08%5%either
September−3.713%5%Inari → Näätämö
October−4.314%4%Inari → Näätämö
November−5.716%2%Inari → Näätämö
December−5.316%2%Inari → Näätämö

Along the route (sections of about 25 km)

kmHeadingTailwind in July, km/h
0–25SW+1.3
25–51SW+1.4
51–76SW+1.4
76–101SW+1.5
101–126W+1.6
126–142S+1.2

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.