Tailwind Atlas

Sverigeleden (34): which way and when to ride

The best month for Sverigeleden (34) is September: 81% of days were dry with highs of 10–30 °C. In September, riding near Grimslöv → near Löttorp meant an average tailwind of 3.3 km/h (ERA5 2006–2025, daytime 9:00–18:00).

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

284 kmLength
June, September (peak September)Best months
near Grimslöv → near LöttorpBetter direction in the best month
3.3 km/hAverage tailwind in the best month
81%Dry days with 10–30 °C
June · 78%Best summer month
Start: near Grimslöv · Finish: near Löttorp · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January0%20%492 °C0%100%7.4 †
February1%18%362 °C0%99%9.4 †
March12%14%315 °C0%88%11.6
April47%14%2810 °C0%50%14.2
May72%23%4715 °C0%10%16.4
June78%22%5919 °C0%0%17.8
July70%29%7721 °C1%0%17.2
August74%25%6820 °C0%0%15.2
September81%19%4617 °C0%0%12.7
October54%20%5911 °C0%32%10.2 †
November11%20%536 °C0%87%8.0 †
December1%21%483 °C0%98%6.8 †

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 Grimslöv → near Löttorp, km/hHeadwind > 15 km/h, near Grimslöv → near LöttorpHeadwind > 15 km/h, near Löttorp → near GrimslövBetter way
January+3.98%20%near Grimslöv → near Löttorp
February+3.18%17%near Grimslöv → near Löttorp
March+2.59%17%near Grimslöv → near Löttorp
April+1.29%14%either
May+1.28%12%either
June+3.55%16%near Grimslöv → near Löttorp
July+3.85%16%near Grimslöv → near Löttorp
August+4.24%16%near Grimslöv → near Löttorp
September+3.37%18%near Grimslöv → near Löttorp
October+3.78%19%near Grimslöv → near Löttorp
November+3.57%18%near Grimslöv → near Löttorp
December+5.25%22%near Grimslöv → near Löttorp

Along the route (sections of about 25 km)

kmHeadingTailwind in September, km/h
0–25NE+3.9
25–51E+3.2
51–76SE+1.4
76–101NE+4.1
101–127E+3.3
127–153SE+0.1
153–178E+3.9
178–203NE+4.5
203–229N+4.2
229–254NE+4.5
254–280N+2.9
280–284NE+4.0

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.

OpenStreetMap · Waymarked Trails