SW Monsoon in Singapore
Singapore Weather in May
On average, Singapore sees a top of 32°C and an overnight low of 25°C in May, with around 14 rain days and 171mm of total rainfall. UV is typically extreme, 12+.
32°C
25°C
171mm
14
What May is like in Singapore
The south-west monsoon begins establishing. While rain increases, it tends to be concentrated in heavy but brief thunderstorms rather than prolonged downpours. Mornings are often sunny.
These figures are long-term averages, not a forecast — for today's actual conditions and the week ahead, check the live Singapore weather forecast. Averages are useful for planning travel, events or what to pack, but any single May can run warmer, cooler, wetter or drier than the long-term normal.