Tailwind Atlas

EuroVelo 2 – Capitals Route (Poland): which way and when to ride

The best month for EuroVelo 2 – Capitals Route (Poland) is September: 80% of days were dry with highs of 10–30 °C. In September the wind barely favours either direction — on average 2.0 km/h along the route (ERA5 2006–2025, daytime 9:00–18:00).

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

1,041 kmLength
SeptemberBest months
eitherBetter direction in the best month
2.0 km/hAverage tailwind in the best month
80%Dry days with 10–30 °C
June · 69%Best summer month
Start: Kostrzyn nad Odrą · Finish: Białowieża · Route geometry: OpenStreetMap / Waymarked Trails

Weather by month

MonthGood daysRain days ≥ 1 mmRain, mmAvg highDays ≥ 30 °CDays < 10 °CDaylight, h
January2%21%501 °C0%97%8.2 †
February5%18%383 °C0%94%9.8 †
March29%20%388 °C0%66%11.7
April64%20%3714 °C0%25%13.8
May72%26%6519 °C0%3%15.7
June69%26%6523 °C6%0%16.8
July62%28%8525 °C12%0%16.3
August66%23%7324 °C12%0%14.7
September80%18%5019 °C1%1%12.6
October64%18%4813 °C0%24%10.5 †
November22%18%427 °C0%73%8.6 †
December3%17%423 °C0%96%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 Kostrzyn nad Odrą → Białowieża, km/hHeadwind > 15 km/h, Kostrzyn nad Odrą → BiałowieżaHeadwind > 15 km/h, Białowieża → Kostrzyn nad OdrąBetter way
January+4.36%20%Kostrzyn nad Odrą → Białowieża
February+3.37%18%Kostrzyn nad Odrą → Białowieża
March+3.17%17%Kostrzyn nad Odrą → Białowieża
April+2.07%15%Kostrzyn nad Odrą → Białowieża
May+1.17%11%either
June+2.74%13%Kostrzyn nad Odrą → Białowieża
July+4.23%15%Kostrzyn nad Odrą → Białowieża
August+3.03%12%Kostrzyn nad Odrą → Białowieża
September+2.06%13%either
October+2.96%15%Kostrzyn nad Odrą → Białowieża
November+3.05%16%Kostrzyn nad Odrą → Białowieża
December+4.74%20%Kostrzyn nad Odrą → Białowieża

Stages

The route is split into 9 stages of about 100–150 km between towns; each stage has its own page.

StagekmBest monthTailwind Kostrzyn nad Odrą → Białowieża in September, km/h
1. Kostrzyn nad Odrą → Międzychód122September+2.7
2. Międzychód → Poznań118September+2.4
3. Poznań → Mogilno112September+3.0
4. Mogilno → Gostynin136September+2.3
5. Gostynin → Nowy Dwór Mazowiecki131September+2.1
6. Nowy Dwór Mazowiecki → Siedlce116September+1.7
7. Siedlce → Terespol130September+1.7
8. Terespol → Czeremcha116September0.0
9. Czeremcha → Białowieża59September+1.6

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 · Start / Finish: en.eurovelo.com