Macau’s weather is distinctly divided into seasons. Spring is pleasant and foggy, summer is hot and rainy, autumn is cool and windy and the winter is cold but sunny. Temperatures range from a low of 10C to 30 C, averaging 20 C annually. Days with higher than 30 C temperatures number 100+; less than 10 C number about 30. Average humidity is 81.5%.
Spring (March – May) is nicely mild and temperate to begin with but ends with the wettest weather of the year. This temperamental time can deliver clear skies and black thunderstorms within hours. Bring those umbrellas everywhere.
Summers (June – August) are hot, wet and humid. Visitors beware: this is typhoon season! There are bound to be some truly impressive storms. Shirts and shorts are sensible, but you might want to consider long sleeves if you don't want to get a tan. Swimming is everyone’s favorite activity during this time.
Autumn (September – November) travel offers the best experience in Macau. The season has the best balance in daily temperatures. T-shirts and shorts will suit the days you stroll around, but pack light sweaters for the evenings.
Winters (December – February) are mild, if very occasionally frosty. Crisp air and clear skies make for a pleasant contrast to summer. Coats, sweaters and light jackets are recommended. December rivals autumn for the best travel time thanks to the local festive cheer around the 20th followed quickly by Christmas and New Years.