EuroVelo 8 - Mediterranean Route - part Italy 4b, stage 3: Piacenza → Guastalla
On stage 3 (Piacenza → Guastalla, 126 km) the best month is October: 82% of days were dry with highs of 10–30 °C, and riding Guastalla → Piacenza meant an average tailwind of 2.7 km/h (ERA5 2006–2025, 9:00–18:00).
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Weather by month
| Month | Good days | Rain days ≥ 1 mm | Rain, mm | Avg high | Days ≥ 30 °C | Days < 10 °C | Daylight, h |
|---|---|---|---|---|---|---|---|
| January | 20% | 16% | 60 | 7 °C | 0% | 79% | 9.1 † |
| February | 51% | 20% | 77 | 10 °C | 0% | 45% | 10.3 † |
| March | 74% | 20% | 76 | 15 °C | 0% | 14% | 11.8 |
| April | 77% | 22% | 79 | 19 °C | 0% | 1% | 13.4 |
| May | 71% | 26% | 106 | 23 °C | 3% | 0% | 14.8 |
| June | 44% | 22% | 76 | 28 °C | 36% | 0% | 15.6 |
| July | 23% | 16% | 57 | 31 °C | 67% | 0% | 15.3 |
| August | 29% | 19% | 80 | 30 °C | 57% | 0% | 14.1 |
| September | 71% | 20% | 90 | 25 °C | 9% | 0% | 12.4 |
| October | 82% | 18% | 85 | 19 °C | 0% | 0% | 10.9 † |
| November | 64% | 21% | 99 | 13 °C | 0% | 21% | 9.5 † |
| December | 20% | 15% | 67 | 8 °C | 0% | 79% | 8.8 † |
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 Piacenza → Guastalla, km/h | Headwind > 15 km/h, Piacenza → Guastalla | Headwind > 15 km/h, Guastalla → Piacenza | Better way |
|---|---|---|---|---|
| January | +0.1 | 1% | 2% | either |
| February | −1.3 | 4% | 2% | either |
| March | −1.9 | 5% | 2% | either |
| April | −2.9 | 6% | 1% | Guastalla → Piacenza |
| May | −1.7 | 4% | 1% | either |
| June | −1.1 | 1% | 0% | either |
| July | −1.5 | 1% | 1% | either |
| August | −2.2 | 2% | 0% | Guastalla → Piacenza |
| September | −2.5 | 2% | 1% | Guastalla → Piacenza |
| October | −2.7 | 3% | 1% | Guastalla → Piacenza |
| November | −1.4 | 4% | 1% | either |
| December | +0.6 | 2% | 2% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in October, km/h |
|---|---|---|
| 270–296 | E | −3.5 |
| 296–321 | E | −3.0 |
| 321–347 | E | −2.6 |
| 347–372 | SE | −1.8 |
| 372–396 | E | −2.7 |
Other stages
- Moncalieri → Valenza 128 km
- Valenza → Piacenza 143 km
- Piacenza → Guastalla 126 km
- Guastalla → Mortizza 50 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.