Why Latvia's seasons matter.
Three things make timing in Latvia consequential. First, latitude. Riga at 56.9° N has 17.5 hours of daylight on the summer solstice and 6.5 hours in late December, slightly less extreme than Tallinn but still a swing that shapes how each day feels. The white nights in northern Latvia run roughly May 26 to July 17, when the sky never fully darkens. Second, the Baltic Sea moderates winters in coastal areas (Riga rarely drops below -10 °C in normal years) but inland Latgale regularly sees -20 °C in January and February. Snow lies on the ground from late November through late March in most years; the inland lakes in Latgale freeze solid for skating; the Riga Gulf can develop pack ice in cold winters. Third, Latvia's outdoor and rural attractions follow strict seasonality. Most manor houses, the major palace at Rundāle (always open but with reduced winter hours), and many rural museums close or run reduced winter operations from October through April. The Gauja Valley's iconic sandstone caves, Sigulda's bobsled track (open year-round) and cable car, and Latvia's small ski resort at Žagarkalns all peak in different seasons. Riga's Art Nouveau walking tours, museums, and concert halls work year-round, but the immediate vicinity (Jūrmala beach, the Gauja Valley canoeing, Kuldīga's salmon-jumping waterfall) is sharply seasonal. Add the Latvian Song and Dance Celebration's once-every-five-years scheduling (the next one is 2028) and the Riga Christmas Market's late-November-to-January window, and you get a country where matching season to itinerary genuinely matters.