Vyshyvanyy shlyakh: which way and when to ride
The best month for Vyshyvanyy shlyakh is September: 80% of days were dry with highs of 10–30 °C. In September the wind barely favours either direction — on average 0.1 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 | 1% | 15% | 36 | -1 °C | 0% | 99% | 8.5 † |
| February | 1% | 14% | 32 | 1 °C | 0% | 99% | 10.0 † |
| March | 27% | 19% | 38 | 7 °C | 0% | 69% | 11.7 |
| April | 68% | 20% | 45 | 15 °C | 0% | 17% | 13.7 |
| May | 73% | 25% | 54 | 21 °C | 2% | 1% | 15.4 |
| June | 66% | 25% | 61 | 25 °C | 12% | 0% | 16.3 |
| July | 58% | 23% | 68 | 27 °C | 23% | 0% | 15.9 |
| August | 65% | 13% | 37 | 27 °C | 23% | 0% | 14.4 |
| September | 80% | 16% | 46 | 21 °C | 3% | 1% | 12.5 |
| October | 67% | 14% | 42 | 13 °C | 0% | 25% | 10.6 † |
| November | 19% | 15% | 41 | 6 °C | 0% | 79% | 8.9 † |
| December | 2% | 19% | 50 | 1 °C | 0% | 98% | 8.1 † |
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 Ukrayinka → Pereiaslav, km/h | Headwind > 15 km/h, Ukrayinka → Pereiaslav | Headwind > 15 km/h, Pereiaslav → Ukrayinka | Better way |
|---|---|---|---|---|
| January | +1.4 | 6% | 10% | either |
| February | +1.0 | 5% | 9% | either |
| March | +1.2 | 7% | 12% | either |
| April | +0.9 | 6% | 10% | either |
| May | +0.2 | 6% | 8% | either |
| June | +0.7 | 4% | 8% | either |
| July | +1.3 | 3% | 7% | either |
| August | +0.5 | 4% | 6% | either |
| September | +0.1 | 5% | 7% | either |
| October | +1.1 | 5% | 9% | either |
| November | +0.7 | 5% | 9% | either |
| December | +1.3 | 5% | 10% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 0–25 | SE | +1.2 |
| 25–50 | SE | +1.0 |
| 50–75 | E | −0.4 |
| 75–101 | S | +1.6 |
| 101–127 | E | −0.2 |
| 127–152 | N | −1.6 |
| 152–169 | N | −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.