Tailwind Atlas

Euroroute R1 - part Poland, stage 4: Koronowo → Kwidzyn

On stage 4 (Koronowo → Kwidzyn, 121 km) the best month is September: 82% of days were dry with highs of 10–30 °C, and riding Koronowo → Kwidzyn meant an average tailwind of 2.7 km/h (ERA5 2006–2025, 9:00–18:00).

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

← Euroroute R1 - part Poland (Whole route)

121 kmLength
SeptemberBest months
Koronowo → KwidzynBetter direction in the best month
2.7 km/hAverage tailwind in the best month
82%Dry days with 10–30 °C
August · 71%Best summer month
Start: Koronowo · Finish: Kwidzyn · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January1%19%461 °C0%98%8.0 †
February3%16%353 °C0%96%9.7 †
March28%19%358 °C0%68%11.7
April61%20%3413 °C0%29%13.9
May71%27%6318 °C0%3%15.9
June71%27%6922 °C2%0%17.0
July66%30%9423 °C5%0%16.5
August71%24%6923 °C6%0%14.8
September82%17%4719 °C1%0%12.6
October64%18%4613 °C0%24%10.4 †
November20%18%427 °C0%76%8.5 †
December2%16%393 °C0%97%7.5 †

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 Koronowo → Kwidzyn, km/hHeadwind > 15 km/h, Koronowo → KwidzynHeadwind > 15 km/h, Kwidzyn → KoronowoBetter way
January+5.94%24%Koronowo → Kwidzyn
February+4.35%20%Koronowo → Kwidzyn
March+3.17%17%Koronowo → Kwidzyn
April+0.610%13%either
May+0.19%10%either
June+1.76%11%either
July+3.04%13%Koronowo → Kwidzyn
August+3.33%12%Koronowo → Kwidzyn
September+2.75%14%Koronowo → Kwidzyn
October+4.94%19%Koronowo → Kwidzyn
November+5.83%20%Koronowo → Kwidzyn
December+7.32%26%Koronowo → Kwidzyn

Along the route (sections of about 25 km)

kmHeadingTailwind in September, km/h
386–412NE+3.1
412–438E+2.7
438–463NE+3.1
463–489N+1.6
489–507NE+3.0

Other stages

  1. Kostrzyn nad Odrą → Międzychód 122 km
  2. Międzychód → Piła 124 km
  3. Piła → Koronowo 140 km
  4. Koronowo → Kwidzyn 121 km
  5. Kwidzyn → Mamonovo 156 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.