Tailwind Atlas

EuroVelo 2 – Capitals Route (United Kingdom), stage 6: Reading → London

On stage 6 (Reading → London, 102 km) the best month is September: 80% of days were dry with highs of 10–30 °C, and riding Reading → London meant an average tailwind of 4.2 km/h (ERA5 2006–2025, 9:00–18:00).

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

← EuroVelo 2 – Capitals Route (United Kingdom) (Whole route)

102 kmLength
June, September (peak September)Best months
Reading → LondonBetter direction in the best month
4.2 km/hAverage tailwind in the best month
80%Dry days with 10–30 °C
June · 79%Best summer month
Start: Reading · Finish: London · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January16%19%587 °C0%76%8.3 †
February25%21%518 °C0%68%9.9 †
March48%22%4710 °C0%43%11.7
April71%22%4114 °C0%13%13.8
May73%26%5917 °C0%2%15.6
June79%20%5820 °C1%0%16.6
July75%23%6122 °C2%0%16.2
August76%22%6021 °C2%0%14.6
September80%20%4719 °C0%0%12.6
October76%21%6515 °C0%3%10.6 †
November47%22%6711 °C0%39%8.8 †
December26%20%608 °C0%64%7.9 †

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 Reading → London, km/hHeadwind > 15 km/h, Reading → LondonHeadwind > 15 km/h, London → ReadingBetter way
January+6.54%24%Reading → London
February+4.98%24%Reading → London
March+2.710%20%Reading → London
April+0.411%13%either
May+2.38%17%Reading → London
June+3.46%17%Reading → London
July+6.42%21%Reading → London
August+6.62%22%Reading → London
September+4.25%18%Reading → London
October+4.35%19%Reading → London
November+5.14%20%Reading → London
December+6.84%26%Reading → London

Along the route (sections of about 25 km)

kmHeadingTailwind in September, km/h
572–597E+5.0
597–622SE+2.5
622–648E+4.2
648–674NE+5.0

Other stages

  1. Holyhead → Porthmadog 110 km
  2. Porthmadog → Llanidloes 112 km
  3. Llanidloes → Abergavenny 122 km
  4. Abergavenny → Trowbridge 116 km
  5. Trowbridge → Reading 112 km
  6. Reading → London 102 km
  7. London → Harwich 182 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.