Ciclovia Svizzera mare (Casalino – Alba): which way and when to ride
The best month for Ciclovia Svizzera mare (Casalino – Alba) is October: 82% of days were dry with highs of 10–30 °C. In October, riding Casalino → Alba meant an average tailwind of 3.0 km/h (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 | 23% | 13% | 61 | 7 °C | 0% | 76% | 9.1 † |
| February | 49% | 16% | 70 | 10 °C | 0% | 50% | 10.3 † |
| March | 74% | 18% | 87 | 14 °C | 0% | 17% | 11.8 |
| April | 75% | 25% | 94 | 19 °C | 0% | 2% | 13.4 |
| May | 69% | 29% | 120 | 22 °C | 2% | 0% | 14.8 |
| June | 49% | 28% | 96 | 27 °C | 25% | 0% | 15.6 |
| July | 35% | 22% | 82 | 30 °C | 50% | 0% | 15.3 |
| August | 43% | 22% | 97 | 29 °C | 40% | 0% | 14.1 |
| September | 77% | 19% | 97 | 24 °C | 4% | 0% | 12.4 |
| October | 82% | 18% | 95 | 19 °C | 0% | 2% | 10.9 † |
| November | 62% | 21% | 131 | 12 °C | 0% | 24% | 9.5 † |
| December | 23% | 14% | 68 | 8 °C | 0% | 76% | 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 Casalino → Alba, km/h | Headwind > 15 km/h, Casalino → Alba | Headwind > 15 km/h, Alba → Casalino | Better way |
|---|---|---|---|---|
| January | +1.6 | 0% | 0% | either |
| February | +1.9 | 0% | 1% | either |
| March | +1.4 | 1% | 3% | either |
| April | +1.3 | 1% | 2% | either |
| May | +0.2 | 1% | 1% | either |
| June | −0.5 | 1% | 1% | either |
| July | +0.8 | 0% | 1% | either |
| August | +2.0 | 0% | 1% | either |
| September | +2.4 | 0% | 1% | Casalino → Alba |
| October | +3.0 | 0% | 1% | Casalino → Alba |
| November | +2.6 | 0% | 1% | Casalino → Alba |
| December | +1.4 | 0% | 0% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in October, km/h |
|---|---|---|
| 0–25 | S | +3.0 |
| 25–50 | SW | +3.3 |
| 50–75 | SW | +3.2 |
| 75–101 | SW | +2.8 |
| 101–117 | SW | +2.5 |
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.