Tailwind Atlas

LF Waterlinieroute, stage 1: Edam → Bussum

On stage 1 (Edam → Bussum, 140 km) the best month is June: 76% of days were dry with highs of 10–30 °C; the wind barely favours either direction (1.5 km/h on average; ERA5 2006–2025, 9:00–18:00).

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

← LF Waterlinieroute (Whole route)

140 kmLength
May–June, September (peak June)Best months
eitherBetter direction in the best month
1.5 km/hAverage tailwind in the best month
76%Dry days with 10–30 °C
June · 76%Best summer month
Start: Edam · Finish: Bussum · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January5%26%716 °C0%88%8.2 †
February12%25%597 °C0%83%9.8 †
March35%21%539 °C0%59%11.7
April61%21%4413 °C0%26%13.8
May73%24%6316 °C0%3%15.7
June76%24%6719 °C1%0%16.8
July67%30%8621 °C3%0%16.3
August68%30%8621 °C2%0%14.7
September75%25%7119 °C0%0%12.6
October69%27%8615 °C0%5%10.5 †
November36%30%7410 °C0%46%8.7 †
December12%26%757 °C0%79%7.7 †

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 Edam → Bussum, km/hHeadwind > 15 km/h, Edam → BussumHeadwind > 15 km/h, Bussum → EdamBetter way
January−1.021%17%either
February−1.121%18%either
March+0.117%17%either
April+1.013%17%either
May+1.513%18%either
June+1.511%16%either
July+1.113%16%either
August+0.514%15%either
September−0.115%14%either
October−1.419%14%either
November−1.620%14%either
December−1.622%16%either

Along the route (sections of about 25 km)

kmHeadingTailwind in June, km/h
0–25W−6.2
25–52SW−0.8
52–77S+2.3
77–102E+6.6
102–127NE+3.4
127–140E+5.7

Other stages

  1. Edam → Bussum 140 km
  2. Bussum → Gorinchem 129 km
  3. Gorinchem → Bergen op Zoom 135 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.