Tailwind Atlas

Sverigeleden (35): which way and when to ride

The best month for Sverigeleden (35) is September: 77% of days were dry with highs of 10–30 °C. In September, riding Önnestad → near Grimslöv meant an average tailwind of 3.0 km/h (ERA5 2006–2025, daytime 9:00–18:00).

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

175 kmLength
SeptemberBest months
Önnestad → near GrimslövBetter direction in the best month
3.0 km/hAverage tailwind in the best month
77%Dry days with 10–30 °C
June · 72%Best summer month
Start: near Grimslöv · Finish: Önnestad · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January0%22%582 °C0%100%7.5 †
February1%19%442 °C0%99%9.5 †
March12%19%396 °C0%88%11.6
April50%18%3511 °C0%46%14.1
May70%27%5515 °C0%8%16.3
June72%27%6619 °C0%0%17.6
July65%35%9021 °C0%0%17.1
August68%32%8020 °C0%0%15.1
September77%23%5117 °C0%0%12.6
October55%22%6511 °C0%30%10.2 †
November13%22%527 °C0%84%8.1 †
December1%22%534 °C0%98%6.9 †

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 → Önnestad, km/hHeadwind > 15 km/h, near Grimslöv → ÖnnestadHeadwind > 15 km/h, Önnestad → near GrimslövBetter way
January−3.218%8%Önnestad → near Grimslöv
February−2.416%8%Önnestad → near Grimslöv
March−2.013%8%Önnestad → near Grimslöv
April−1.712%7%either
May−2.312%6%Önnestad → near Grimslöv
June−3.713%3%Önnestad → near Grimslöv
July−4.113%3%Önnestad → near Grimslöv
August−4.113%3%Önnestad → near Grimslöv
September−3.015%6%Önnestad → near Grimslöv
October−3.116%7%Önnestad → near Grimslöv
November−2.816%7%Önnestad → near Grimslöv
December−4.019%5%Önnestad → near Grimslöv

Along the route (sections of about 25 km)

kmHeadingTailwind in September, km/h
0–25SE−0.7
25–50S−3.1
50–75S−3.0
75–101SW−4.4
101–126SW−4.8
126–154NW−1.2
154–175SW−4.3

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