Euroroute R1 - part Latvia, stage 1: near Šventoji → Kuldīga
On stage 1 (near Šventoji → Kuldīga, 140 km) the best month is June: 78% of days were dry with highs of 10–30 °C, and riding near Šventoji → Kuldīga meant an average tailwind of 2.7 km/h (ERA5 2006–2025, 9:00–18:00).
← Euroroute R1 - 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% | 23% | 58 | 0 °C | 0% | 100% | 7.5 † |
| February | 0% | 18% | 40 | 1 °C | 0% | 100% | 9.4 † |
| March | 8% | 18% | 36 | 5 °C | 0% | 92% | 11.6 |
| April | 39% | 17% | 34 | 10 °C | 0% | 56% | 14.2 |
| May | 70% | 20% | 45 | 15 °C | 0% | 13% | 16.4 |
| June | 78% | 22% | 59 | 19 °C | 0% | 0% | 17.7 |
| July | 69% | 30% | 86 | 21 °C | 1% | 0% | 17.2 |
| August | 67% | 32% | 90 | 21 °C | 1% | 0% | 15.1 |
| September | 75% | 24% | 66 | 17 °C | 0% | 1% | 12.7 |
| October | 47% | 27% | 75 | 11 °C | 0% | 35% | 10.2 † |
| November | 10% | 23% | 58 | 6 °C | 0% | 87% | 8.0 † |
| December | 0% | 26% | 59 | 3 °C | 0% | 100% | 6.8 † |
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 Šventoji → Kuldīga, km/h | Headwind > 15 km/h, near Šventoji → Kuldīga | Headwind > 15 km/h, Kuldīga → near Šventoji | Better way |
|---|---|---|---|---|
| January | +5.2 | 7% | 25% | near Šventoji → Kuldīga |
| February | +4.3 | 7% | 22% | near Šventoji → Kuldīga |
| March | +3.3 | 9% | 21% | near Šventoji → Kuldīga |
| April | +0.8 | 12% | 16% | either |
| May | +1.1 | 9% | 13% | either |
| June | +2.7 | 7% | 15% | near Šventoji → Kuldīga |
| July | +2.6 | 6% | 15% | near Šventoji → Kuldīga |
| August | +4.2 | 5% | 18% | near Šventoji → Kuldīga |
| September | +3.7 | 7% | 20% | near Šventoji → Kuldīga |
| October | +5.3 | 7% | 26% | near Šventoji → Kuldīga |
| November | +6.2 | 5% | 24% | near Šventoji → Kuldīga |
| December | +7.1 | 5% | 29% | near Šventoji → Kuldīga |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in June, km/h |
|---|---|---|
| 0–25 | N | −0.3 |
| 25–50 | N | −2.1 |
| 50–75 | NE | +6.4 |
| 75–101 | NE | +4.9 |
| 101–127 | NE | +4.3 |
| 127–140 | NE | +3.0 |
Other stages
- near Šventoji → Kuldīga 140 km
- Kuldīga → Jūrmala 135 km
- Jūrmala → Cēsis 133 km
- Cēsis → Valga 83 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.