Mariental weather in December 2025

Expect 35°C daytime maximum temperatures in the shade with on average 12 hours of sunshine per day in Mariental in December. Check more long-term weather averages for Mariental in December before you book your next holiday to Namibia in 2025/2026.

  • 35°C maximum daytime temperature in December in Mariental35
    35°C max day temperature
  • 12 hours of sunshine per day
  • 3 days with some rainfall in December in Mariental3
    3 days with some rainfall
  • 19°C minimum night-time temperature in December in Mariental19
    19°C min night temperature
  • 14 hours of daylight per day in December in Mariental14
    14 hours of daylight per day
  • High heat & humidity in December in MarientalH
    High heat & humidity
  • 14 mm monthly rainfall in December in Mariental14
    14 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in December in Mariental11
    11+ (Extreme) UV index

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The December weather guide for Namibia (Mariental) 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 Mariental in December?

Daytime temperatures usually reach 35°C in Mariental in December with high heat and humidity, falling to 19°C at night.

How sunny is it in Mariental in December?

There are normally 12 hours of bright sunshine each day in Mariental in December - that's 87% of daylight hours.

Does it ever rain in Mariental in December?

There are usually 3 days with some rain in Mariental in December and the average monthly rainfall is 14mm.

Mariental December sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st December 2025 05:51 19:24
Tuesday, 16th December 2025 05:54 19:34
Wednesday, 31st December 2025 06:02 19:40

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