Tropical climate varying from area to area. The eastern monsoon brings the driest weather (June to September), while the western monsoon brings the main rains (December to March). Rainstorms occur all year. Higher regions are cooler.

Lightweights with rainwear. Warmer clothes are needed for cool evenings and upland areas. Smart clothes such as jackets are required for formal occasions, and it is regarded inappropriate to wear brief clothes anywhere other than the beach or at sports facilities. Women should observe the Muslim dress code that requires shoulders and legs to be kept covered.