Singapore weather in December 2025

Expect 29°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Singapore in December based on long-term weather averages. There is usually 19 days with some rainfall and 272 mm of average monthly rainfall in December.

  • 29°C maximum daytime temperature in December in Singapore29
    29°C max day temperature
  • 4 hours of sunshine per day
  • 19 days with some rainfall in December in Singapore19
    19 days with some rainfall
  • 22°C minimum night-time temperature in December in Singapore22
    22°C min night temperature
  • 12 hours of daylight per day in December in Singapore12
    12 hours of daylight per day
  • High heat & humidity in December in SingaporeH
    High heat & humidity
  • 272 mm monthly rainfall in December in Singapore272
    272 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in December in Singapore11
    11+ (Extreme) UV index
  • 28°C sea temperature in December in Singapore28
    28°C sea temperature

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The December weather guide for Singapore shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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More about Singapore

How hot is it in Singapore in December?

Daytime temperatures usually reach 29°C in Singapore in December with high heat and humidity, falling to 22°C at night.

How sunny is it in Singapore in December?

There are normally 4 hours of bright sunshine each day in Singapore in December - that's 36% of daylight hours.

How warm is the sea around Singapore in December?

The average sea temperature around Singapore in December is 28°C.

Does it rain in Singapore in December?

There are usually 19 days with some rain in Singapore in December and the average monthly rainfall is 272mm.

Singapore December sunrise & sunset times

Browse the sunrise and sunset times for Singapore in December 2025. Select a month to view Singapore sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 06:52 18:55
Tuesday, 16th December 2025 06:59 19:02
Wednesday, 31st December 2025 07:06 19:09

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