Cycle routes in Ireland: which way and when
Ireland: 3 routes with wind, rain and heat by month. The best month is most often September (3/3); data: ERA5 2006–2025.
Routes
| Route | Length | Best months | Best way |
|---|---|---|---|
| EuroVelo 1 - Atlantic Coast Route - part Ireland | 2,542 km | September | either |
| EuroVelo 2 - part Ireland | 230 km | September | Galway → Sandymount |
| Royal Canal Greenway | 134 km | September | Longford → Dublin |
Other routes through Ireland
| Route | Length | Best months | Best way |
|---|---|---|---|
| EuroVelo 2 - Capitals Route - part Irish Sea | 113 km | May–June, September (peak June) | Dublin → Holyhead |
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.