EuroVelo 2 – Capitals Route (United Kingdom), stage 2: Porthmadog → Llanidloes
On stage 2 (Porthmadog → Llanidloes, 112 km) the best month is June: 65% of days were dry with highs of 10–30 °C; the wind barely favours either direction (0.7 km/h on average; ERA5 2006–2025, 9:00–18:00).
← EuroVelo 2 – Capitals Route (United Kingdom) (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 | 2% | 36% | 128 | 6 °C | 0% | 91% | 8.1 † |
| February | 6% | 34% | 101 | 7 °C | 0% | 89% | 9.8 † |
| March | 22% | 34% | 94 | 9 °C | 0% | 69% | 11.7 |
| April | 53% | 32% | 65 | 12 °C | 0% | 32% | 13.9 |
| May | 61% | 37% | 88 | 14 °C | 0% | 6% | 15.8 |
| June | 65% | 35% | 91 | 17 °C | 0% | 0% | 16.8 |
| July | 60% | 39% | 99 | 18 °C | 1% | 0% | 16.4 |
| August | 60% | 40% | 100 | 18 °C | 0% | 0% | 14.7 |
| September | 64% | 36% | 103 | 16 °C | 0% | 0% | 12.6 |
| October | 59% | 35% | 115 | 13 °C | 0% | 9% | 10.5 † |
| November | 22% | 40% | 128 | 9 °C | 0% | 56% | 8.6 † |
| December | 8% | 41% | 149 | 7 °C | 0% | 77% | 7.7 † |
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 Porthmadog → Llanidloes, km/h | Headwind > 15 km/h, Porthmadog → Llanidloes | Headwind > 15 km/h, Llanidloes → Porthmadog | Better way |
|---|---|---|---|---|
| January | −0.2 | 11% | 10% | either |
| February | −1.2 | 13% | 9% | either |
| March | −0.7 | 12% | 8% | either |
| April | −0.3 | 9% | 7% | either |
| May | +0.3 | 8% | 7% | either |
| June | +0.7 | 6% | 5% | either |
| July | +1.5 | 5% | 6% | either |
| August | +0.9 | 8% | 8% | either |
| September | +0.2 | 8% | 8% | either |
| October | −1.8 | 13% | 7% | either |
| November | −0.4 | 12% | 9% | either |
| December | −1.2 | 12% | 9% | either |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in June, km/h |
|---|---|---|
| 110–135 | S | −2.3 |
| 135–160 | SE | +3.4 |
| 160–185 | S | −1.4 |
| 185–210 | SE | +1.8 |
| 210–222 | SE | +3.1 |
Other stages
- Holyhead → Porthmadog 110 km
- Porthmadog → Llanidloes 112 km
- Llanidloes → Abergavenny 122 km
- Abergavenny → Trowbridge 116 km
- Trowbridge → Reading 112 km
- Reading → London 102 km
- London → Harwich 182 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.