EuroVelo 13 - Iron Curtain Trail - part Latvia, stage 3: near Roja → Ventspils
On stage 3 (near Roja → Ventspils, 120 km) the best month is June: 78% of days were dry with highs of 10–30 °C, and riding Ventspils → near Roja meant an average tailwind of 4.1 km/h (ERA5 2006–2025, 9:00–18:00).
← EuroVelo 13 - Iron Curtain Trail - part Latvia (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 | 0% | 20% | 52 | 0 °C | 0% | 100% | 7.2 † |
| February | 0% | 16% | 35 | 0 °C | 0% | 100% | 9.3 † |
| March | 4% | 16% | 34 | 4 °C | 0% | 96% | 11.6 |
| April | 26% | 17% | 35 | 8 °C | 0% | 70% | 14.2 |
| May | 66% | 18% | 41 | 14 °C | 0% | 20% | 16.6 |
| June | 78% | 21% | 59 | 18 °C | 0% | 1% | 18.0 |
| July | 74% | 26% | 78 | 21 °C | 0% | 0% | 17.4 |
| August | 69% | 30% | 87 | 20 °C | 0% | 0% | 15.3 |
| September | 75% | 24% | 65 | 16 °C | 0% | 1% | 12.7 |
| October | 47% | 25% | 71 | 11 °C | 0% | 37% | 10.2 † |
| November | 8% | 21% | 57 | 6 °C | 0% | 89% | 7.8 † |
| December | 0% | 21% | 53 | 3 °C | 0% | 100% | 6.6 † |
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 near Roja → Ventspils, km/h | Headwind > 15 km/h, near Roja → Ventspils | Headwind > 15 km/h, Ventspils → near Roja | Better way |
|---|---|---|---|---|
| January | −2.8 | 24% | 15% | Ventspils → near Roja |
| February | −2.3 | 22% | 13% | Ventspils → near Roja |
| March | −3.4 | 23% | 12% | Ventspils → near Roja |
| April | −3.0 | 22% | 11% | Ventspils → near Roja |
| May | −2.0 | 17% | 10% | either |
| June | −4.1 | 21% | 7% | Ventspils → near Roja |
| July | −3.9 | 21% | 7% | Ventspils → near Roja |
| August | −3.4 | 20% | 9% | Ventspils → near Roja |
| September | −3.3 | 24% | 11% | Ventspils → near Roja |
| October | −3.7 | 26% | 13% | Ventspils → near Roja |
| November | −2.7 | 22% | 14% | Ventspils → near Roja |
| December | −4.0 | 27% | 13% | Ventspils → near Roja |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in June, km/h |
|---|---|---|
| 254–281 | NW | −3.9 |
| 281–306 | NW | −3.1 |
| 306–332 | SW | −4.3 |
| 332–359 | SW | −6.0 |
| 359–374 | SW | −2.4 |
Other stages
- Ainaži → Riga 143 km
- Riga → near Roja 115 km
- near Roja → Ventspils 120 km
- Ventspils → Liepāja 128 km
- Liepāja → near Šventoji 61 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.