Grand Baie weather in December 2025

Expect daytime maximum temperatures of 29°C in Grand Baie, Mauritius in December and high heat and humidity based on long-term weather averages. There are 8 hours of sunshine per day on average with 16 days with some rainfall and typically 162 mm of rainfall in the month.

• 29
  29°C max day temperature
• 8
  8 hours of sunshine per day
• 16
  16 days with some rainfall
• 21
  21°C min night temperature
• 13
  13 hours of daylight per day
• H
  High heat & humidity
• 162
  162 mm of monthly rainfall
• 11
  11+ (Extreme) UV index
• 26
  26°C sea temperature

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Grand Baie by month

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The December weather guide for Mauritius (Grand Baie) 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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Grand Baie December sunrise & sunset times

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

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