Tailwind Atlas

EuroVelo 13 – Iron Curtain Trail (Finland), stage 13: Imatra → Vaalimaa

On stage 13 (Imatra → Vaalimaa, 146 km) the best month is June: 74% of days were dry with highs of 10–30 °C, and riding Vaalimaa → Imatra meant an average tailwind of 3.1 km/h (ERA5 2006–2025, 9:00–18:00).

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

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

146 kmLength
June–July (peak June)Best months
Vaalimaa → ImatraBetter direction in the best month
3.1 km/hAverage tailwind in the best month
74%Dry days with 10–30 °C
June · 74%Best summer month
Start: Imatra · Finish: Vaalimaa · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January0%22%53-4 °C0%100%6.4 †
February0%19%44-3 °C0%100%8.9 †
March2%17%381 °C0%98%11.6
April24%17%377 °C0%75%14.6
May69%21%4815 °C0%17%17.3
June74%25%6219 °C1%1%19.1
July72%25%7422 °C3%0%18.4
August70%29%8220 °C1%0%15.7
September69%24%6515 °C0%9%12.8
October24%24%698 °C0%66%9.9 †
November1%25%633 °C0%98%7.2 †
December0%25%64-1 °C0%100%5.6 †

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 Imatra → Vaalimaa, km/hHeadwind > 15 km/h, Imatra → VaalimaaHeadwind > 15 km/h, Vaalimaa → ImatraBetter way
January−2.616%5%Vaalimaa → Imatra
February−2.612%4%Vaalimaa → Imatra
March−2.914%4%Vaalimaa → Imatra
April−2.011%6%either
May−2.111%5%Vaalimaa → Imatra
June−3.111%4%Vaalimaa → Imatra
July−2.411%5%Vaalimaa → Imatra
August−3.413%4%Vaalimaa → Imatra
September−3.315%5%Vaalimaa → Imatra
October−3.618%6%Vaalimaa → Imatra
November−3.716%6%Vaalimaa → Imatra
December−4.320%5%Vaalimaa → Imatra

Along the route (sections of about 25 km)

kmHeadingTailwind in June, km/h
1,520–1,545SW−2.5
1,545–1,570SW−2.7
1,570–1,596SW−4.3
1,596–1,621SW−4.0
1,621–1,646W−3.6
1,646–1,666SE−1.3

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.