Penang weather in December 2025

Expect daytime maximum temperatures of 31°C in Penang, Malaysia in December and very high heat and humidity based on long-term weather averages. There are 7 hours of sunshine per day on average with 14 days with some rainfall and typically 149 mm of rainfall in the month.

  • 31°C maximum daytime temperature in December in Penang31
    31°C max day temperature
  • 7 hours of sunshine per day
  • 14 days with some rainfall in December in Penang14
    14 days with some rainfall
  • 22°C minimum night-time temperature in December in Penang22
    22°C min night temperature
  • 12 hours of daylight per day in December in Penang12
    12 hours of daylight per day
  • Very high heat & humidity in December in PenangVH
    Very High heat & humidity
  • 149 mm monthly rainfall in December in Penang149
    149 mm of monthly rainfall
  • UV (maximum) index 11 (Extreme) in December in Penang11
    11 (Extreme) UV index
  • 29°C sea temperature in December in Penang29
    29°C sea temperature

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The December weather guide for Malaysia (Penang) 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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How hot is it in Penang in December?

Daytime temperatures usually reach 31°C in Penang in December with very high heat and humidity, falling to 22°C at night.

How sunny is it in Penang in December?

There are normally 7 hours of bright sunshine each day in Penang in December - that's 56% of daylight hours.

How warm is the sea around Penang in December?

The average sea temperature around Penang in December is 29°C.

Does it rain in Penang in December?

There are usually 14 days with some rain in Penang in December and the average monthly rainfall is 149mm.

Penang December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 07:13 19:03
Tuesday, 16th December 2025 07:20 19:09
Wednesday, 31st December 2025 07:27 19:16

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