Rivera, Uruguay experiences mild winters with temperatures ranging from 1-14°C during the months of June to August. Spring and autumn are characterized by moderate temperatures, with April and September averaging around 20°C and 16°C respectively. Summer is warm to hot, with temperatures soaring up to 38°C in December and January, while winter nights can be cool, especially in May and July when temperatures drop as low as 3-4°C. Autumn brings an increase in temperature, returning to average highs by October, while spring brings a slower warming trend. Overall, the region's climate is temperate, with moderate seasonal variations.