Euroroute R1 - part Poland, stage 3: Piła → Koronowo
On stage 3 (Piła → Koronowo, 140 km) the best month is September: 82% of days were dry with highs of 10–30 °C, and riding Piła → Koronowo meant an average tailwind of 2.6 km/h (ERA5 2006–2025, 9:00–18:00).
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Weather by month
| Month | Good days | Rain days ≥ 1 mm | Rain, mm | Avg high | Days ≥ 30 °C | Days < 10 °C | Daylight, h |
|---|---|---|---|---|---|---|---|
| January | 2% | 20% | 49 | 2 °C | 0% | 97% | 8.1 † |
| February | 4% | 18% | 36 | 3 °C | 0% | 96% | 9.8 † |
| March | 28% | 20% | 37 | 8 °C | 0% | 67% | 11.7 |
| April | 63% | 19% | 34 | 14 °C | 0% | 27% | 13.9 |
| May | 73% | 26% | 59 | 18 °C | 0% | 3% | 15.8 |
| June | 70% | 27% | 67 | 22 °C | 3% | 0% | 16.9 |
| July | 67% | 28% | 90 | 24 °C | 7% | 0% | 16.5 |
| August | 69% | 25% | 73 | 23 °C | 7% | 0% | 14.8 |
| September | 82% | 17% | 47 | 19 °C | 1% | 0% | 12.6 |
| October | 63% | 19% | 47 | 13 °C | 0% | 23% | 10.4 † |
| November | 20% | 18% | 42 | 7 °C | 0% | 75% | 8.5 † |
| December | 2% | 17% | 39 | 3 °C | 0% | 96% | 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
| Month | Wind Piła → Koronowo, km/h | Headwind > 15 km/h, Piła → Koronowo | Headwind > 15 km/h, Koronowo → Piła | Better way |
|---|---|---|---|---|
| January | +4.9 | 5% | 21% | Piła → Koronowo |
| February | +3.8 | 6% | 19% | Piła → Koronowo |
| March | +3.3 | 6% | 17% | Piła → Koronowo |
| April | +1.7 | 8% | 15% | either |
| May | +1.1 | 8% | 12% | either |
| June | +2.9 | 4% | 14% | Piła → Koronowo |
| July | +4.3 | 3% | 15% | Piła → Koronowo |
| August | +3.4 | 3% | 13% | Piła → Koronowo |
| September | +2.6 | 6% | 14% | Piła → Koronowo |
| October | +3.5 | 5% | 16% | Piła → Koronowo |
| November | +3.8 | 4% | 17% | Piła → Koronowo |
| December | +5.7 | 3% | 22% | Piła → Koronowo |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 246–272 | E | +2.4 |
| 272–297 | E | +3.1 |
| 297–322 | NE | +3.0 |
| 322–347 | NE | +3.3 |
| 347–372 | SE | +1.3 |
| 372–386 | N | +1.9 |
Other stages
- Kostrzyn nad Odrą → Międzychód 122 km
- Międzychód → Piła 124 km
- Piła → Koronowo 140 km
- Koronowo → Kwidzyn 121 km
- 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.