Euroroute R1 - part Latvia, stage 2: Kuldīga → Jūrmala
On stage 2 (Kuldīga → Jūrmala, 135 km) the best month is September: 75% of days were dry with highs of 10–30 °C, and riding Kuldīga → Jūrmala meant an average tailwind of 3.4 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% | 19% | 49 | 0 °C | 0% | 100% | 7.4 † |
| February | 0% | 18% | 35 | 0 °C | 0% | 100% | 9.4 † |
| March | 10% | 18% | 35 | 5 °C | 0% | 89% | 11.6 |
| April | 43% | 21% | 40 | 10 °C | 0% | 52% | 14.2 |
| May | 69% | 23% | 53 | 16 °C | 0% | 11% | 16.5 |
| June | 72% | 27% | 66 | 20 °C | 1% | 0% | 17.9 |
| July | 66% | 33% | 92 | 22 °C | 1% | 0% | 17.3 |
| August | 66% | 34% | 86 | 21 °C | 1% | 0% | 15.2 |
| September | 75% | 24% | 56 | 17 °C | 0% | 2% | 12.7 |
| October | 45% | 24% | 63 | 11 °C | 0% | 41% | 10.2 † |
| November | 8% | 18% | 48 | 5 °C | 0% | 90% | 7.9 † |
| December | 0% | 20% | 47 | 2 °C | 0% | 99% | 6.7 † |
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 Kuldīga → Jūrmala, km/h | Headwind > 15 km/h, Kuldīga → Jūrmala | Headwind > 15 km/h, Jūrmala → Kuldīga | Better way |
|---|---|---|---|---|
| January | +3.4 | 6% | 18% | Kuldīga → Jūrmala |
| February | +2.9 | 4% | 16% | Kuldīga → Jūrmala |
| March | +4.0 | 5% | 20% | Kuldīga → Jūrmala |
| April | +3.3 | 4% | 18% | Kuldīga → Jūrmala |
| May | +2.0 | 5% | 12% | either |
| June | +4.2 | 3% | 18% | Kuldīga → Jūrmala |
| July | +3.9 | 3% | 16% | Kuldīga → Jūrmala |
| August | +3.5 | 3% | 15% | Kuldīga → Jūrmala |
| September | +3.4 | 6% | 19% | Kuldīga → Jūrmala |
| October | +4.0 | 6% | 19% | Kuldīga → Jūrmala |
| November | +3.0 | 5% | 15% | Kuldīga → Jūrmala |
| December | +4.4 | 5% | 19% | Kuldīga → Jūrmala |
Along the route (sections of about 25 km)
| km | Heading | Tailwind in September, km/h |
|---|---|---|
| 138–163 | NE | +4.4 |
| 163–189 | E | +3.5 |
| 189–215 | E | +3.6 |
| 215–240 | E | +2.8 |
| 240–265 | E | +3.0 |
| 265–273 | E | +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.