Winters in Usti nad Labem are cold, with temperatures often below freezing, especially in January and February, but occasionally rising to around 8-16°C. Spring brings mild temperatures, gradually warming up from March's averages of 3°C to May's 9°C highs. Summer is warm, with July being the warmest month, averaging 18°C, while autumn cools down again, with October experiencing average highs similar to those in April and November.