Grand Baie Temperature by Month
The average annual maximum temperature in Grand Baie, Plaines Wilhems, Mauritius is 27°C (81°F), with little variation between seasons. This page covers monthly averages, day-night differences, and how Grand Baie compares to cities worldwide.
Grand Baie Monthly Temperatures
With minimal seasonal shifts, Grand Baie experiences a constant climate year-round. Maximum daytime temperatures range from a comfortable 29°C (84°F) in February to a comfortable 24°C (75°F) in August. At night, temperatures range from 26°C (79°F) in February to 21°C (70°F) in August.
The chart below illustrates the average maximum day and minimum night temperatures in Grand Baie by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM. February, the city's warmest month, sees 224 hours of sunshine.
The chart below shows the average temperature throughout the year:
Daily Historical Temperatures
49-year average (1977-2025)
Average high and low temperatures for each day of the month based on long-term records.
Average temperatures in June
Historical Grand Baie Temperatures: 1976-2026
Browse day-by-day temperature records for Grand Baie spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
Temperature: Grand Baie vs Mauritius
The map below shows the annual temperature across Mauritius. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
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Grand Baie vs World: Temperature Compared
Grand Baie's average annual maximum temperature is 27°C (81°F). To put that in context, here's how it compares to a few well-known destinations:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
Reykjavík, Iceland averages 9°C (48°F) a year — mild summers by Icelandic standards, but cold winters and frequent wind.
Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Grand Baie this rarely lasts long on the ground.
For more on Grand Baie's weather — including monthly rainfall, sunshine hours, and humidity — visit our Grand Baie climate page.
