EuroVelo 9 - Baltic-Adriatic - part Austria, stage 2: Vienna → Hartberg
On stage 2 (Vienna → Hartberg, 141 km) the best month is September: 74% of days were dry with highs of 10–30 °C; the wind barely favours either direction (0.5 km/h on average; ERA5 2006–2025, 9:00–18:00).
← EuroVelo 9 - Baltic-Adriatic - part Austria (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 | 6% | 17% | 42 | 3 °C | 0% | 93% | 8.8 † |
| February | 18% | 16% | 37 | 5 °C | 0% | 80% | 10.2 † |
| March | 42% | 20% | 47 | 10 °C | 0% | 52% | 11.8 |
| April | 65% | 25% | 56 | 15 °C | 0% | 20% | 13.6 |
| May | 60% | 39% | 106 | 18 °C | 0% | 3% | 15.1 |
| June | 60% | 35% | 104 | 23 °C | 6% | 0% | 16.0 |
| July | 55% | 35% | 100 | 25 °C | 12% | 0% | 15.6 |
| August | 59% | 31% | 103 | 24 °C | 12% | 0% | 14.3 |
| September | 74% | 25% | 97 | 20 °C | 1% | 2% | 12.5 |
| October | 68% | 20% | 61 | 14 °C | 0% | 19% | 10.7 † |
| November | 30% | 17% | 50 | 8 °C | 0% | 67% | 9.2 † |
| December | 6% | 15% | 42 | 4 °C | 0% | 93% | 8.4 † |
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 Vienna → Hartberg, km/h | Headwind > 15 km/h, Vienna → Hartberg | Headwind > 15 km/h, Hartberg → Vienna | Better way |
|---|---|---|---|---|
| January | +0.1 | 1% | 4% | either |
| February | +0.9 | 3% | 6% | either |
| March | +1.3 | 6% | 8% | either |
| April | +1.5 | 7% | 8% | either |
| May | +2.0 | 4% | 8% | either |
| June | +2.0 | 4% | 5% | either |
| July | +1.5 | 2% | 3% | either |
| August | +0.3 | 3% | 2% | either |
| September | +0.5 | 4% | 4% | either |
| October | −1.0 | 5% | 3% | either |
| November | −1.9 | 5% | 2% | either |
| December | −0.7 | 3% | 3% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 108–133 | S | +0.6 |
| 133–159 | S | +1.2 |
| 159–185 | SW | +0.6 |
| 185–210 | SW | +0.4 |
| 210–236 | S | 0.0 |
| 236–249 | S | −0.4 |
Other stages
- near Břeclav → Vienna 108 km
- Vienna → Hartberg 141 km
- Hartberg → Spielfeld 154 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.