Grand Baie weather in December 2025

Q: How hot is it in Grand Baie in December?

Daytime temperatures usually reach 29°C in Grand Baie in December with high heat and humidity, falling to 21°C at night.

Q: How sunny is it in Grand Baie in December?

There are normally 8 hours of bright sunshine each day in Grand Baie in December - that's 56% of daylight hours.

Q: How warm is the sea around Grand Baie in December?

The average sea temperature around Grand Baie in December is 26°C.

Q: Does it rain in Grand Baie in December?

There are usually 16 days with some rain in Grand Baie in December and the average monthly rainfall is 162mm.

Q: What is the chance of a cyclone in Grand Baie in December?

On average less than 1 day in December in Grand Baie is likely to be affected by the passage of one or more tropical storms.

Expect daytime maximum temperatures of 84°F 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 6.4 inches of rainfall in the month.

84
84°F max day temperature
8
8 hours of sunshine per day
16
16 days with some rainfall
70
70°F min night temperature
13
13 hours of daylight per day
H
High heat & humidity
6.4
6.4 inches of monthly rainfall
11
11+ (Extreme) UV index
79
79°F sea temperature

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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) | Imperial (°F)

More about Mauritius

How hot is it in Grand Baie in December?

Daytime temperatures usually reach 84°F in Grand Baie in December with high heat and humidity, falling to 70°F at night.

How sunny is it in Grand Baie in December?

There are normally 8 hours of bright sunshine each day in Grand Baie in December - that's 56% of daylight hours.

How warm is the sea around Grand Baie in December?

The average sea temperature around Grand Baie in December is 79°F.

Does it rain in Grand Baie in December?

There are usually 16 days with some rain in Grand Baie in December and the average monthly rainfall is 6.4 inches.

What is the chance of a cyclone in Grand Baie in December?

On average less than 1 day in December in Grand Baie is likely to be affected by the passage of one or more tropical storms.

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.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Date	Sunrise times	Sunset times
Monday, 1st December 2025	05:21	18:36
Tuesday, 16th December 2025	05:25	18:46
Wednesday, 31st December 2025	05:33	18:52

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Mauritius - quick facts
Flight time^✝	12 hours
Time difference	UK +4 hours
Language(s)	English, French, Mauritian Creole
Currency	Mauritian Rupee
Electricity	C + G plug (230V)
Driving side	Left
Why visit?	Beaches Nature Nightlife
Tourist info	Mauritius Tourism Promotion Authority