EuroVelo 5 - Via Romea Francigena, stage 21: Campagnano di Roma → Valmontone
On stage 21 (Campagnano di Roma → Valmontone, 93 km) the best month is October: 77% of days were dry with highs of 10–30 °C; the wind barely favours either direction (0.9 km/h on average; ERA5 2006–2025, 9:00–18:00).
← EuroVelo 5 - Via Romea Francigena (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 | 60% | 25% | 84 | 12 °C | 0% | 23% | 9.4 † |
| February | 64% | 27% | 88 | 13 °C | 0% | 15% | 10.5 † |
| March | 71% | 28% | 95 | 15 °C | 0% | 3% | 11.8 |
| April | 72% | 28% | 70 | 19 °C | 0% | 0% | 13.3 |
| May | 69% | 29% | 78 | 23 °C | 2% | 0% | 14.5 |
| June | 52% | 19% | 41 | 28 °C | 30% | 0% | 15.2 |
| July | 25% | 13% | 24 | 31 °C | 66% | 0% | 14.9 |
| August | 25% | 15% | 27 | 31 °C | 66% | 0% | 13.8 |
| September | 67% | 22% | 88 | 26 °C | 12% | 0% | 12.4 |
| October | 77% | 23% | 103 | 22 °C | 0% | 0% | 11.0 † |
| November | 71% | 29% | 137 | 17 °C | 0% | 2% | 9.8 † |
| December | 67% | 23% | 103 | 13 °C | 0% | 13% | 9.1 † |
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 Campagnano di Roma → Valmontone, km/h | Headwind > 15 km/h, Campagnano di Roma → Valmontone | Headwind > 15 km/h, Valmontone → Campagnano di Roma | Better way |
|---|---|---|---|---|
| January | −0.8 | 4% | 3% | either |
| February | −0.6 | 6% | 3% | either |
| March | −0.7 | 6% | 3% | either |
| April | 0.0 | 4% | 2% | either |
| May | +0.8 | 3% | 2% | either |
| June | +1.2 | 2% | 1% | either |
| July | +2.1 | 2% | 2% | Campagnano di Roma → Valmontone |
| August | +1.7 | 2% | 1% | either |
| September | +0.5 | 3% | 1% | either |
| October | −0.9 | 4% | 2% | either |
| November | −1.7 | 5% | 2% | either |
| December | −0.6 | 4% | 2% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in October, km/h |
|---|---|---|
| 2,477–2,502 | SE | −1.5 |
| 2,502–2,522 | S | −2.2 |
| 2,522–2,523 | NW | +1.0 |
| 2,523–2,548 | E | +0.1 |
| 2,548–2,570 | E | −0.2 |
Other stages
- Canterbury → Audruicq 114 km
- Audruicq → Lens 115 km
- Lens → Lessines 121 km
- Lessines → Wavre 125 km
- Wavre → Marche-en-Famenne 126 km
- Marche-en-Famenne → Eischen 132 km
- Eischen → Saarlouis 120 km
- Saarlouis → Saverne 147 km
- Saverne → Châtenois 120 km
- Châtenois → Mulhouse 116 km
- Mulhouse → Luzern 113 km
- Luzern → Airolo 117 km
- Airolo → Como 139 km
- Como → Pavia 121 km
- Pavia → Fidenza 128 km
- Fidenza → Sarzana 133 km
- Sarzana → San Miniato Basso 121 km
- San Miniato Basso → Siena 96 km
- Siena → Acquapendente 121 km
- Acquapendente → Campagnano di Roma 120 km
- Campagnano di Roma → Valmontone 93 km
- Valmontone → Frosinone 104 km
- Frosinone → Cassino 119 km
- Cassino → Benevento 121 km
- Benevento → Venosa 133 km
- Venosa → Castellaneta 122 km
- Castellaneta → Brindisi 122 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.