Singapore weather in May
Singapore averages 30°C by day and 25°C at night in May, with the sea at 31°C and 28 days with at least 1 mm of rain.
Day
30°C
Night
25°C
Sea
31°C
Rainy days
28
Flight from London
13½h
What May feels like
May is hot but wet in Singapore: rainy season, so pack for showers.
The sea is warm at 31°C: comfortable for long swims.
It is rainy season, with rain on about 28 days.
Of the 48 sun destinations we track, Singapore is the #13 warmest in May.
Want it warmer in May?
These are hotter than Singapore this month for at most an hour and a half more flying:
Singapore weather by month
May is highlighted. Compare with April and June, or see the full year in Singapore.
Singapore in May: quick answers
Is Singapore hot in May?
May is hot but wet in Singapore: rainy season, so pack for showers. Average highs are 30°C and lows 25°C.
Can you swim in Singapore in May?
The sea is warm at 31°C: comfortable for long swims.
Does it rain in Singapore in May?
It is rainy season, with rain on about 28 days.
What is the warmest month in Singapore?
March, at an average high of 31°C. The coolest is January at 29°C.
How long is the flight to Singapore from the UK?
About 13½h direct from London, estimated from the 10,871 km distance. Check your airline for exact times.
Still choosing? See where is hot in May for every destination ranked by temperature, sea and flight time.
How we measured this
Averages of every day in May from 2016 to 2025, from the Open-Meteo historical weather archive (ECMWF ERA5 reanalysis). Sea temperature is the 2023 to 2025 average from the Open-Meteo marine archive. A rainy day has at least 1 mm of rain. Reanalysis describes an area about 25 km across, so sheltered resorts can run a degree or two warmer. Flight time is a distance-based estimate from London Heathrow.
Planning Singapore in May?
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