Singapore's climate is warm and humid, with only slight variations between the average minimum of 23°C and maximum of 31°C. This makes it ideal for those who enjoy sunbathing, swimming, sailing and other watersports.
There are two main seasons in Singapore: the Northeast Monsoon season (from December to March) and the Southwest Monsoon season (from May to September), separated by two shorter inter-monsoon periods. Although there are no distinct wet or dry periods, drier weather conditions are usually experienced from May to July, and wetter conditions from November to January. February is also a relatively dry month. From year to year, there could be a slight delay in the beginning or end of a monsoon period.
If you happen to be in Singapore between May and October, you might experience a Sumatra squall. Sumatras are thunderstorms which usually occur every year during the Southwest Monsoon season. They develop at night over Sumatra or the Malacca Straits and move west towards Singapore and the west coast of Peninsular Malaysia during early morning. They are often characterized by a sudden onset of strong gusty surface winds and heavy rain lasting from 1 to 2 hours as they pass over the island. The Meteorological Service Singapore (MSS) has recorded maximum gusts of up to 50 knots during the passage of a Sumatra squall.
