Appennino Bike Tour, stage 18: San Marco Argentano → Spezzano della Sila
On stage 18 (San Marco Argentano → Spezzano della Sila, 114 km) the best month is October: 75% of days were dry with highs of 10–30 °C; the wind barely favours either direction (0.4 km/h on average; ERA5 2006–2025, 9:00–18:00).
← Appennino Bike Tour (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 | 38% | 30% | 114 | 10 °C | 0% | 50% | 9.7 † |
| February | 46% | 32% | 104 | 10 °C | 0% | 40% | 10.7 † |
| March | 57% | 35% | 116 | 12 °C | 0% | 22% | 11.8 |
| April | 69% | 30% | 81 | 16 °C | 0% | 4% | 13.2 |
| May | 72% | 27% | 68 | 19 °C | 1% | 0% | 14.3 |
| June | 74% | 19% | 41 | 24 °C | 7% | 0% | 14.9 |
| July | 72% | 13% | 23 | 27 °C | 16% | 0% | 14.7 |
| August | 69% | 16% | 31 | 27 °C | 15% | 0% | 13.7 |
| September | 73% | 25% | 78 | 23 °C | 2% | 0% | 12.4 |
| October | 75% | 25% | 93 | 19 °C | 0% | 1% | 11.1 |
| November | 64% | 33% | 136 | 15 °C | 0% | 7% | 9.9 † |
| December | 55% | 25% | 100 | 11 °C | 0% | 31% | 9.4 † |
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 San Marco Argentano → Spezzano della Sila, km/h | Headwind > 15 km/h, San Marco Argentano → Spezzano della Sila | Headwind > 15 km/h, Spezzano della Sila → San Marco Argentano | Better way |
|---|---|---|---|---|
| January | +0.4 | 2% | 2% | either |
| February | +0.7 | 1% | 3% | either |
| March | +0.6 | 1% | 2% | either |
| April | +0.7 | 1% | 1% | either |
| May | +1.0 | 0% | 1% | either |
| June | +1.6 | 0% | 0% | either |
| July | +2.0 | 0% | 1% | San Marco Argentano → Spezzano della Sila |
| August | +1.7 | 0% | 0% | either |
| September | +1.0 | 1% | 1% | either |
| October | +0.4 | 1% | 1% | either |
| November | −0.3 | 2% | 1% | either |
| December | +0.4 | 1% | 2% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in October, km/h |
|---|---|---|
| 2,052–2,077 | S | −0.6 |
| 2,077–2,102 | E | +2.0 |
| 2,102–2,127 | E | +1.9 |
| 2,127–2,152 | SW | −0.7 |
| 2,152–2,166 | SW | −1.8 |
Other stages
- Bocchetta di Altare → Ronco Scrivia 118 km
- Ronco Scrivia → Farini 118 km
- Farini → Monchio delle Corti 118 km
- Monchio delle Corti → Pievepelago 118 km
- Pievepelago → Castiglione dei Pepoli 124 km
- Castiglione dei Pepoli → Bibbiena 114 km
- Bibbiena → Gubbio 120 km
- Gubbio → Spoleto 100 km
- Spoleto → Arquata del Tronto 118 km
- Arquata del Tronto → Paganica-Tempera 144 km
- Paganica-Tempera → Castel di Sangro 152 km
- Castel di Sangro → Guardiaregia 118 km
- Guardiaregia → Sant'Angelo dei Lombardi 116 km
- Sant'Angelo dei Lombardi → Pignola 112 km
- Pignola → San Brancato 136 km
- San Brancato → Mormanno 110 km
- Mormanno → San Marco Argentano 118 km
- San Marco Argentano → Spezzano della Sila 114 km
- Spezzano della Sila → Borgia 118 km
- Borgia → Fabrizia 110 km
- Fabrizia → Villa San Giovanni 121 km
- Villa San Giovanni → Alia 2 km
- Alia → Gangi 99 km
- Gangi → Bronte 108 km
- Bronte → Gaggi 110 km
- Gaggi → Alia 164 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.