Euroroute R1 - part Poland: which way and when to ride
The best month for Euroroute R1 - part Poland is September: 81% of days were dry with highs of 10–30 °C. In September, riding Kostrzyn nad Odrą → Mamonovo meant an average tailwind of 2.5 km/h (ERA5 2006–2025, daytime 9:00–18:00).
Weather by month
| Month | Good days | Rain days ≥ 1 mm | Rain, mm | Avg high | Days ≥ 30 °C | Days < 10 °C | Daylight, h |
|---|---|---|---|---|---|---|---|
| January | 2% | 21% | 51 | 2 °C | 0% | 97% | 8.0 † |
| February | 5% | 18% | 38 | 3 °C | 0% | 94% | 9.7 † |
| March | 28% | 21% | 38 | 8 °C | 0% | 67% | 11.7 |
| April | 63% | 19% | 35 | 14 °C | 0% | 27% | 13.9 |
| May | 73% | 25% | 59 | 18 °C | 0% | 3% | 15.8 |
| June | 71% | 26% | 65 | 22 °C | 4% | 0% | 16.9 |
| July | 64% | 30% | 92 | 24 °C | 8% | 0% | 16.5 |
| August | 68% | 25% | 72 | 24 °C | 7% | 0% | 14.8 |
| September | 81% | 18% | 48 | 19 °C | 1% | 0% | 12.6 |
| October | 65% | 19% | 49 | 13 °C | 0% | 21% | 10.4 † |
| November | 21% | 18% | 45 | 7 °C | 0% | 74% | 8.5 † |
| December | 3% | 18% | 43 | 4 °C | 0% | 95% | 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 Kostrzyn nad Odrą → Mamonovo, km/h | Headwind > 15 km/h, Kostrzyn nad Odrą → Mamonovo | Headwind > 15 km/h, Mamonovo → Kostrzyn nad Odrą | Better way |
|---|---|---|---|---|
| January | +5.3 | 4% | 21% | Kostrzyn nad Odrą → Mamonovo |
| February | +4.0 | 5% | 18% | Kostrzyn nad Odrą → Mamonovo |
| March | +3.0 | 6% | 15% | Kostrzyn nad Odrą → Mamonovo |
| April | +1.0 | 7% | 12% | either |
| May | +0.5 | 7% | 10% | either |
| June | +2.0 | 4% | 11% | either |
| July | +3.2 | 3% | 12% | Kostrzyn nad Odrą → Mamonovo |
| August | +3.2 | 2% | 11% | Kostrzyn nad Odrą → Mamonovo |
| September | +2.5 | 5% | 12% | Kostrzyn nad Odrą → Mamonovo |
| October | +4.2 | 4% | 16% | Kostrzyn nad Odrą → Mamonovo |
| November | +4.9 | 3% | 18% | Kostrzyn nad Odrą → Mamonovo |
| December | +6.4 | 2% | 22% | Kostrzyn nad Odrą → Mamonovo |
Stages
The route is split into 5 stages of about 100–150 km between towns; each stage has its own page.
| Stage | km | Best month | Tailwind Kostrzyn nad Odrą → Mamonovo in September, km/h |
|---|---|---|---|
| 1. Kostrzyn nad Odrą → Międzychód | 122 | September | +2.6 |
| 2. Międzychód → Piła | 124 | September | +2.2 |
| 3. Piła → Koronowo | 140 | September | +2.6 |
| 4. Koronowo → Kwidzyn | 121 | September | +2.7 |
| 5. Kwidzyn → Mamonovo | 156 | September | +2.6 |
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.