Tailwind Atlas

EuroVelo 12 - North Sea Cycle Route - part Norway, stage 5: Kleppe → Flekkefjord

On stage 5 (Kleppe → Flekkefjord, 128 km) the best month is June: 72% of days were dry with highs of 10–30 °C, and riding Kleppe → Flekkefjord meant an average tailwind of 6.2 km/h (ERA5 2006–2025, 9:00–18:00).

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

← EuroVelo 12 - North Sea Cycle Route - part Norway (Whole route)

128 kmLength
JuneBest months
Kleppe → FlekkefjordBetter direction in the best month
6.2 km/hAverage tailwind in the best month
72%Dry days with 10–30 °C
June · 72%Best summer month
Start: Kleppe · Finish: Flekkefjord · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January0%43%1904 °C0%100%7.0 †
February0%40%1464 °C0%100%9.2 †
March4%31%1105 °C0%96%11.6
April27%28%779 °C0%70%14.3
May55%28%9112 °C0%29%16.8
June72%27%9215 °C0%1%18.3
July65%35%13517 °C0%0%17.6
August59%41%17817 °C0%0%15.4
September57%42%19415 °C0%1%12.7
October35%46%21811 °C0%29%10.1 †
November8%44%2117 °C0%78%7.7 †
December0%45%2125 °C0%97%6.4 †

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 Kleppe → Flekkefjord, km/hHeadwind > 15 km/h, Kleppe → FlekkefjordHeadwind > 15 km/h, Flekkefjord → KleppeBetter way
January−2.129%22%Flekkefjord → Kleppe
February−3.230%19%Flekkefjord → Kleppe
March−0.226%24%either
April+2.119%26%Kleppe → Flekkefjord
May+3.917%31%Kleppe → Flekkefjord
June+6.213%34%Kleppe → Flekkefjord
July+5.113%31%Kleppe → Flekkefjord
August+1.919%25%either
September+0.425%25%either
October−1.828%21%either
November−2.829%19%Flekkefjord → Kleppe
December−1.826%20%either

Along the route (sections of about 25 km)

kmHeadingTailwind in June, km/h
452–477S+3.4
477–502SE+6.8
502–527SE+6.1
527–552E+7.5
552–580SE+7.2

Other stages

  1. Bergen → Leirvik 110 km
  2. Leirvik → near Haugesund 116 km
  3. near Haugesund → Jørpeland 115 km
  4. Jørpeland → Kleppe 113 km
  5. Kleppe → Flekkefjord 128 km
  6. Flekkefjord → Lyngdal 114 km
  7. Lyngdal → Kristiansand 104 km
  8. Kristiansand → Tvedestrand 116 km
  9. Tvedestrand → near Porsgrunn 116 km
  10. near Porsgrunn → Tønsberg 110 km
  11. Tønsberg → near Halden 132 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.