Oliveira de Azemeis experiences a mild climate with moderate temperatures throughout the year. Winters are cool and variable, with temperatures ranging from around freezing in January to 23°C in February, averaging around 11-12°C. As spring arrives, temperatures gradually rise, reaching an average of 14°C by April and May. Summers are warm to hot, with average highs often above 20°C, while autumns see a return to milder conditions, mirroring the winter pattern but with slightly warmer averages.