Alpe Adria Bicycle Route, stage 3: Villach → Udine
On stage 3 (Villach → Udine, 136 km) the best month is September: 65% of days were dry with highs of 10–30 °C; the wind barely favours either direction (0.3 km/h on average; ERA5 2006–2025, 9:00–18:00).
← Alpe Adria Bicycle Route (Whole route)
Weather by month
| Month | Good days | Rain days ≥ 1 mm | Rain, mm | Avg high | Days ≥ 30 °C | Days < 10 °C | Daylight, h |
|---|---|---|---|---|---|---|---|
| January | 3% | 18% | 99 | 3 °C | 0% | 97% | 9.0 † |
| February | 12% | 24% | 114 | 5 °C | 0% | 87% | 10.3 † |
| March | 34% | 28% | 131 | 9 °C | 0% | 60% | 11.8 |
| April | 50% | 40% | 133 | 14 °C | 0% | 23% | 13.5 |
| May | 45% | 55% | 196 | 17 °C | 0% | 4% | 15.0 |
| June | 48% | 50% | 162 | 22 °C | 2% | 0% | 15.8 |
| July | 50% | 44% | 146 | 24 °C | 6% | 0% | 15.4 |
| August | 52% | 42% | 164 | 24 °C | 7% | 0% | 14.2 |
| September | 65% | 34% | 177 | 19 °C | 0% | 1% | 12.5 |
| October | 64% | 27% | 183 | 14 °C | 0% | 14% | 10.8 † |
| November | 25% | 28% | 183 | 8 °C | 0% | 66% | 9.3 † |
| December | 4% | 19% | 121 | 4 °C | 0% | 95% | 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 Villach → Udine, km/h | Headwind > 15 km/h, Villach → Udine | Headwind > 15 km/h, Udine → Villach | Better way |
|---|---|---|---|---|
| January | +1.2 | 0% | 0% | either |
| February | +0.6 | 0% | 0% | either |
| March | −0.4 | 0% | 1% | either |
| April | −1.6 | 0% | 0% | either |
| May | −1.8 | 0% | 0% | either |
| June | −2.2 | 0% | 0% | Udine → Villach |
| July | −1.8 | 0% | 0% | either |
| August | −1.2 | 0% | 0% | either |
| September | −0.3 | 0% | 0% | either |
| October | −0.2 | 0% | 0% | either |
| November | +0.9 | 0% | 0% | either |
| December | +1.7 | 0% | 0% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 212–237 | SW | +1.1 |
| 237–263 | W | +0.9 |
| 263–288 | SW | −0.1 |
| 288–313 | S | −1.3 |
| 313–338 | SE | −1.9 |
| 338–348 | S | −1.0 |
Other stages
- Salzburg → Bad Gastein 108 km
- Bad Gastein → Villach 105 km
- Villach → Udine 136 km
- Udine → Grado 63 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.