December weather forecastBelle Mare, Mauritius

December
Weather in December
As the year wraps up in Belle Mare with December, the weather transitions significantly from that of November. Temperature elevations occur, peaking at an average high of 27.4°C (81.3°F). Rainfall patterns show a noticeable increase, signifying the nearing of a wetter phase after the more-balanced previous months. Despite the appearance of this impending change, December remains largely comfortable with ample periods of sunshine and steady breezes. With its combination of warmth and moisture, December offers a tropical end to the year in Belle Mare maintaining the city’s appeal to visitors.Temperature
December's beginning in Belle Mare signals an average high-temperature of a still moderately hot 27.4°C (81.3°F), barely different from November's 25.8°C (78.4°F). Belle Mare experiences a minimal drop from daytime high temperatures, recording an average low-temperature of 25.1°C (77.2°F) throughout December.Heat index
The heat index value for December is calculated to be a hot 30°C (86°F). With sustained exposure and activity, exhaustion becomes probable, resulting in heat cramps.One should consider that heat index numbers are for shaded settings and light wind. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', comes about by integrating the temperature readings with the humidity levels. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
Humidity
The average relative humidity in December is 76%.Rainfall
In December, in Belle Mare, the rain falls for 17.1 days. Throughout December, 59mm (2.32") of precipitation is accumulated. In Belle Mare, during the entire year, the rain falls for 200.8 days and collects up to 550mm (21.65") of precipitation.Sea temperature
In December, the average sea temperature in Belle Mare, Mauritius, is 27°C (80.6°F).Note: In water activities such as swimming and diving, temperatures from 25°C (77°F) to 29°C (84.2°F) are deemed highly pleasurable for extended periods without any unease.
Daylight
The month with the longest days is December, with an average of 13h and 18min of daylight.On the first day of the month, sunrise is at 05:20 and sunset at 18:36. On the last day of December, in Belle Mare, sunrise is at 05:31 and sunset at 18:52 +04.
Sunshine
In Belle Mare, the average sunshine in December is 10.2h.UV index
January through April and December, with an average maximum UV index of 7, are months with the highest UV index in Belle Mare. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: In December, an average UV index of 7 transforms into the following instructions:
Guard against overexposure. Protection from sun-induced harm is essential. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely. Attention! UV strength is notably upped by the reflection of sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Belle Mare, Mauritius
- Average high temperature in December: 27.4°C
The warmest month (with the highest average high temperature) is February (28.2°C).
The month with the lowest average high temperature is August (22.9°C).
- Average low temperature in December: 25.1°C
The month with the highest average low temperature is February (26°C).
The coldest month (with the lowest average low temperature) is August (21.3°C).
Average pressure in December
Belle Mare, Mauritius
- Average pressure in December: 1013.4mbar
The month with the highest atmospheric pressure is August (1021.2mbar).
The month with the lowest atmospheric pressure is February (1011.2mbar).
Average wind speed in December
Belle Mare, Mauritius
- Average wind speed in December: 18km/h
The windiest month (with the highest average wind speed) is August (24.3km/h).
The calmest month (with the lowest average wind speed) is November (17.7km/h).
Average humidity in December
Belle Mare, Mauritius
- Average humidity in December: 76%
The month with the highest relative humidity is February (79%).
The months with the lowest relative humidity are July, August and September (74%).
Average rainfall in December
Belle Mare, Mauritius
- Average rainfall in December: 59mm
The wettest month (with the highest rainfall) is February (105mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in December
Belle Mare, Mauritius
- Average rainfall days in December: 17.1 days
The month with the highest number of rainy days is March (21.8 days).
The month with the least rainy days is November (11.2 days).
Average sea temperature in December
Belle Mare, Mauritius
- Average sea temperature in December: 27°C
The best month for swimming (with the highest average sea temperature) is February (28°C).
The coldest months (with the lowest average sea temperature) are August and September (23°C).
Average daylight in December /
Average sunshine in December
Belle Mare, Mauritius
- Average daylight in December: 13h and 18min
The month with the longest days is December (Average daylight: 13h and 18min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in December: 10h and 12min
The month with the most sunshine is October (Average sunshine: 10h and 18min).
The month with the least sunshine is July (Average sunshine: 6h and 6min).
Average sunshine days in December
Belle Mare, Mauritius
- Average sunshine days in December: 10.1 days
The month with the most sunshine days is November (14.2 days).
The month with the least sunshine days is February (4 days).
Average UV index in December
Belle Mare, Mauritius
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April and December (UV index 7).
The months with the lowest UV index are May, June, July, August, September, October and November (UV index 6).
Average cloud cover in December
Belle Mare, Mauritius
- Average cloud cover in December: 40
The months with the most cloud cover are March and April (Cloud cover 45).
The months with the least cloud cover are September and October (Cloud cover 38).
Average visibility in December
Belle Mare, Mauritius
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





