Winters in Velenje are cool and sometimes cold, with temperatures often below freezing point, especially in January and December. Spring brings a gradual warming trend, with temperatures rising steadily from March onwards, eventually reaching pleasant highs by May. Summer is warm to hot, with July being the warmest month, while August is slightly cooler due to its proximity to autumn. Autumn is mild, with temperatures dropping again as winter approaches, similar to spring's cooling trend but in reverse.