Slovenian Way of St. James - Prekmurska-Štajerska Branch: which way and when to ride
The best month for Slovenian Way of St. James - Prekmurska-Štajerska Branch is October: 77% of days were dry with highs of 10–30 °C. In October the wind barely favours either direction — on average 1.0 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 | 10% | 15% | 53 | 4 °C | 0% | 89% | 9.0 † |
| February | 27% | 17% | 61 | 7 °C | 0% | 71% | 10.3 † |
| March | 54% | 19% | 63 | 11 °C | 0% | 37% | 11.8 |
| April | 69% | 26% | 68 | 16 °C | 0% | 11% | 13.5 |
| May | 63% | 37% | 116 | 20 °C | 0% | 1% | 15.0 |
| June | 57% | 33% | 99 | 25 °C | 12% | 0% | 15.8 |
| July | 51% | 30% | 98 | 27 °C | 22% | 0% | 15.4 |
| August | 57% | 25% | 100 | 26 °C | 19% | 0% | 14.2 |
| September | 73% | 26% | 112 | 21 °C | 1% | 0% | 12.5 |
| October | 77% | 18% | 79 | 16 °C | 0% | 9% | 10.8 † |
| November | 38% | 19% | 83 | 9 °C | 0% | 55% | 9.3 † |
| December | 8% | 16% | 60 | 5 °C | 0% | 91% | 8.6 † |
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 Kobilje → Ljubljana, km/h | Headwind > 15 km/h, Kobilje → Ljubljana | Headwind > 15 km/h, Ljubljana → Kobilje | Better way |
|---|---|---|---|---|
| January | −1.3 | 3% | 1% | either |
| February | −0.5 | 4% | 2% | either |
| March | −0.1 | 6% | 4% | either |
| April | −0.2 | 5% | 3% | either |
| May | +0.2 | 4% | 2% | either |
| June | +0.2 | 3% | 1% | either |
| July | +0.4 | 1% | 1% | either |
| August | +1.1 | 1% | 1% | either |
| September | +0.9 | 2% | 1% | either |
| October | −1.0 | 4% | 1% | either |
| November | −1.2 | 3% | 1% | either |
| December | −1.2 | 2% | 1% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in October, km/h |
|---|---|---|
| 0–25 | SW | −1.5 |
| 25–50 | SW | −1.7 |
| 50–76 | W | −0.3 |
| 76–101 | SW | −1.6 |
| 101–127 | W | −1.2 |
| 127–152 | W | −1.2 |
| 152–177 | W | −0.8 |
| 177–202 | SW | −1.2 |
| 202–232 | W | −0.2 |
| 232–257 | SW | −0.5 |
| 257–266 | SE | −0.9 |
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.