Port St Johns weather in December 2025

Expect daytime maximum temperatures of 24°C in Port St Johns, South Africa in December based on long-term weather averages. There are 7 hours of sunshine per day on average with 14 days with some rainfall and typically 104 mm of rainfall in the month.

  • 24°C maximum daytime temperature in December in Port St Johns24
    24°C max day temperature
  • 7 hours of sunshine per day
  • 14 days with some rainfall in December in Port St Johns14
    14 days with some rainfall
  • 18°C minimum night-time temperature in December in Port St Johns18
    18°C min night temperature
  • 14 hours of daylight per day in December in Port St Johns14
    14 hours of daylight per day
  • Low heat & humidity in December in Port St JohnsL
    Low heat & humidity
  • 104 mm monthly rainfall in December in Port St Johns104
    104 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in December in Port St Johns11
    11+ (Extreme) UV index
  • 24°C sea temperature in December in Port St Johns24
    24°C sea temperature

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The December weather guide for South Africa (Port St Johns) 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 South Africa

How hot is it in Port St Johns in December?

Daytime temperatures usually reach 24°C in Port St Johns in December, falling to 14°C at night.

How sunny is it in Port St Johns in December?

There are normally 11 hours of bright sunshine each day in Port St Johns in December - that's 74% of daylight hours.

How warm is the sea around Port St Johns in December?

The average sea temperature around Port St Johns in December is 18°C.

Does it rain in Port St Johns in December?

There are usually 6 days with some rain in Port St Johns in December and the average monthly rainfall is 43mm.

Port St Johns December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 04:49 18:53
Tuesday, 16th December 2025 04:51 19:04
Wednesday, 31st December 2025 05:00 19:10

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