Tailwind Atlas

Cycle routes in Latvia: which way and when

Latvia: 5 routes with wind, rain and heat by month. The best month is most often September (3/5); data: ERA5 2006–2025.

ERA5 2006–2025 · OpenStreetMap · Methodology and sources

Routes

RouteLengthBest monthsBest way
EuroVelo 10 - Baltic Sea Cycle Route - part Latvia686 kmJune, September (peak June)either
EuroVelo 11 - East Europe Route - part Latvia680 kmSeptembereither
EuroVelo 13 - Iron Curtain Trail - part Latvia567 kmJune, September (peak June)near Šventoji → Ainaži
Euroroute R1 - part Latvia491 kmJune, September (peak September)near Šventoji → Valga
7: Nacionālais upju maršruts372 kmSeptembereither

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.