Aida, stage 3: Novara → Treviglio
On stage 3 (Novara → Treviglio, 123 km) the best month is October: 80% of days were dry with highs of 10–30 °C; the wind barely favours either direction (1.5 km/h on average; ERA5 2006–2025, 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 | 22% | 14% | 65 | 8 °C | 0% | 77% | 9.1 † |
| February | 50% | 18% | 78 | 10 °C | 0% | 48% | 10.3 † |
| March | 73% | 19% | 89 | 14 °C | 0% | 14% | 11.8 |
| April | 75% | 24% | 106 | 19 °C | 0% | 1% | 13.5 |
| May | 67% | 30% | 142 | 23 °C | 4% | 0% | 14.9 |
| June | 45% | 28% | 112 | 28 °C | 30% | 0% | 15.7 |
| July | 31% | 24% | 107 | 30 °C | 52% | 0% | 15.3 |
| August | 40% | 24% | 127 | 29 °C | 40% | 0% | 14.1 |
| September | 76% | 21% | 123 | 24 °C | 3% | 0% | 12.5 |
| October | 80% | 20% | 125 | 18 °C | 0% | 1% | 10.8 † |
| November | 62% | 22% | 146 | 12 °C | 0% | 20% | 9.4 † |
| December | 24% | 15% | 75 | 8 °C | 0% | 74% | 8.7 † |
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 Novara → Treviglio, km/h | Headwind > 15 km/h, Novara → Treviglio | Headwind > 15 km/h, Treviglio → Novara | Better way |
|---|---|---|---|---|
| January | +0.5 | 0% | 1% | either |
| February | −0.1 | 1% | 1% | either |
| March | −0.4 | 2% | 1% | either |
| April | −1.2 | 2% | 1% | either |
| May | −0.6 | 1% | 0% | either |
| June | −0.3 | 1% | 0% | either |
| July | −0.9 | 0% | 0% | either |
| August | −1.4 | 1% | 0% | either |
| September | −1.5 | 1% | 0% | either |
| October | −1.5 | 2% | 0% | either |
| November | −0.5 | 2% | 0% | either |
| December | +0.9 | 1% | 0% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in October, km/h |
|---|---|---|
| 236–261 | NE | −2.7 |
| 261–287 | E | −1.9 |
| 287–312 | SE | −0.6 |
| 312–338 | E | −1.2 |
| 338–359 | E | −0.9 |
Other stages
- Susa → Turin 114 km
- Turin → Novara 122 km
- Novara → Treviglio 123 km
- Treviglio → Verona 148 km
- Verona → Padua 124 km
- Padua → Oderzo 122 km
- Oderzo → Udine 114 km
- Udine → Cormons 80 km
- Cormons → Treviso 7 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.