EuroVelo 9 - Baltic-Adriatic - Lesser Poland voivodeship: which way and when to ride
The best month for EuroVelo 9 - Baltic-Adriatic - Lesser Poland voivodeship is September: 77% of days were dry with highs of 10–30 °C. In September the wind barely favours either direction — on average 0.2 km/h along the route (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 | 3% | 22% | 49 | 2 °C | 0% | 96% | 8.4 † |
| February | 8% | 18% | 39 | 4 °C | 0% | 90% | 9.9 † |
| March | 33% | 22% | 45 | 8 °C | 0% | 62% | 11.7 |
| April | 64% | 22% | 47 | 14 °C | 0% | 26% | 13.8 |
| May | 70% | 27% | 73 | 18 °C | 0% | 4% | 15.5 |
| June | 68% | 28% | 83 | 22 °C | 5% | 0% | 16.5 |
| July | 62% | 31% | 94 | 24 °C | 9% | 0% | 16.1 |
| August | 66% | 26% | 93 | 24 °C | 8% | 0% | 14.5 |
| September | 77% | 21% | 78 | 19 °C | 1% | 2% | 12.5 |
| October | 64% | 20% | 55 | 13 °C | 0% | 24% | 10.6 † |
| November | 27% | 17% | 45 | 8 °C | 0% | 69% | 8.8 † |
| December | 5% | 18% | 42 | 3 °C | 0% | 94% | 8.0 † |
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 near Pakosław → Głuchołazy, km/h | Headwind > 15 km/h, near Pakosław → Głuchołazy | Headwind > 15 km/h, Głuchołazy → near Pakosław | Better way |
|---|---|---|---|---|
| January | −1.5 | 10% | 6% | either |
| February | −0.5 | 8% | 7% | either |
| March | +0.4 | 7% | 7% | either |
| April | +1.5 | 5% | 8% | either |
| May | +1.3 | 4% | 7% | either |
| June | +1.6 | 3% | 6% | either |
| July | +1.7 | 2% | 5% | either |
| August | +0.4 | 2% | 3% | either |
| September | +0.2 | 4% | 5% | either |
| October | −1.6 | 7% | 4% | either |
| November | −2.6 | 8% | 4% | Głuchołazy → near Pakosław |
| December | −2.6 | 10% | 4% | Głuchołazy → near Pakosław |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 0–25 | S | −0.2 |
| 25–50 | S | +0.5 |
| 50–77 | SW | −1.6 |
| 77–102 | W | −2.7 |
| 102–127 | S | −0.3 |
| 127–153 | SW | −2.0 |
| 153–178 | SE | +1.3 |
| 178–203 | SE | +2.1 |
| 203–228 | SE | +2.1 |
| 228–253 | E | +2.8 |
| 253–275 | S | +1.0 |
| 275–278 | NE | +0.4 |
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.