EuroVelo 1 - Atlantic Coast Route - part United Kingdom 2, stage 4: Newport → Street
On stage 4 (Newport → Street, 122 km) the best month is September: 78% of days were dry with highs of 10–30 °C; the wind barely favours either direction (0.2 km/h on average; ERA5 2006–2025, 9:00–18:00).
← EuroVelo 1 - Atlantic Coast Route - part United Kingdom 2 (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 | 19% | 24% | 70 | 8 °C | 0% | 71% | 8.3 † |
| February | 27% | 24% | 61 | 8 °C | 0% | 64% | 9.9 † |
| March | 44% | 25% | 62 | 10 °C | 0% | 42% | 11.7 |
| April | 68% | 24% | 50 | 14 °C | 0% | 12% | 13.8 |
| May | 72% | 27% | 70 | 16 °C | 0% | 1% | 15.6 |
| June | 74% | 25% | 64 | 19 °C | 0% | 0% | 16.6 |
| July | 73% | 25% | 68 | 21 °C | 1% | 0% | 16.2 |
| August | 73% | 26% | 70 | 20 °C | 1% | 0% | 14.6 |
| September | 78% | 22% | 62 | 18 °C | 0% | 0% | 12.6 |
| October | 73% | 24% | 81 | 15 °C | 0% | 3% | 10.6 † |
| November | 49% | 25% | 81 | 11 °C | 0% | 32% | 8.8 † |
| December | 25% | 24% | 79 | 9 °C | 0% | 58% | 7.9 † |
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 Newport → Street, km/h | Headwind > 15 km/h, Newport → Street | Headwind > 15 km/h, Street → Newport | Better way |
|---|---|---|---|---|
| January | −0.8 | 15% | 12% | either |
| February | −0.8 | 16% | 14% | either |
| March | 0.0 | 14% | 14% | either |
| April | +0.1 | 11% | 12% | either |
| May | +0.4 | 11% | 13% | either |
| June | +0.1 | 9% | 11% | either |
| July | 0.0 | 10% | 10% | either |
| August | 0.0 | 12% | 11% | either |
| September | −0.2 | 12% | 11% | either |
| October | −1.5 | 15% | 10% | either |
| November | −0.8 | 15% | 12% | either |
| December | −1.6 | 17% | 12% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 330–355 | E | +5.6 |
| 355–380 | SE | +2.4 |
| 380–405 | S | −1.1 |
| 405–431 | SW | −4.4 |
| 431–452 | SW | −4.1 |
Other stages
- Fishguard → Saundersfoot 110 km
- Saundersfoot → Swansea 112 km
- Swansea → Newport 108 km
- Newport → Street 122 km
- Street → Barnstaple 143 km
- Barnstaple → Plymouth 136 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.