December weather forecastTrou d'Eau Douce, Mauritius
December
Weather in December
Closing the year, the weather in December in Trou d'Eau Douce comes full circle with warmer temperatures hinting the arrival of summer. Rainfall surges to 75mm (2.95") over 15.8 days, an evident upswing from previous months. However, these occasional rain showers hardly impact the generous sunshine hours, that saturate the tropical island. The confluence of warm sea temperatures and increased daylight hours pronounces December as an inviting time for holidaymakers. The tropical allure of Trou d'Eau Douce, Mauritius remains constant as the year cycles back to January.Temperature
December's arrival shows an average high-temperature of a still moderately hot 27.2°C (81°F), hardly different from the previous month. In Trou d'Eau Douce, the December nights are characterized by an average low-temperature of 25°C (77°F), a minor dip from daytime readings.Heat index
For most parts of December, the heat index is evaluated at a tropical 30°C (86°F). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children regularly disregard the necessity to rest and replenish fluids. Thirst is a late symptom of dehydration - thus, maintaining hydration, particularly during long-lasting physical activities, is essential.
Humidity
In December, the average relative humidity is 76%.Rainfall
In Trou d'Eau Douce, during December, the rain falls for 15.8 days and regularly aggregates up to 75mm (2.95") of precipitation. In Trou d'Eau Douce, during the entire year, the rain falls for 199.3 days and collects up to 565mm (22.24") of precipitation.Sea temperature
In December, the average sea temperature is 27°C (80.6°F).Note: Swimming, diving, and other activities in water temperatures between 25°C (77°F) and 29°C (84.2°F) are thought to be quite enjoyable and satisfying for extended periods, with no discomfort.
Daylight
December has the longest days of the year, with an average of 13h and 18min of daylight.On the first day of December in Trou d'Eau Douce, sunrise is at 05:19 and sunset at 18:36. On the last day of the month, sunrise is at 05:31 and sunset at 18:52 +04.
Sunshine
December has the most sunshine of the year, with an average of 10.7h of sunshine.UV index
January through April, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 7 in December translates into this advice:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Attention! The reflection of both water and sand can increase the intensity of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Trou d'Eau Douce, Mauritius
- Average high temperature in December: 27.2°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°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
Trou d'Eau Douce, 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
Trou d'Eau Douce, Mauritius
- Average wind speed in December: 18.2km/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
Trou d'Eau Douce, 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
Trou d'Eau Douce, Mauritius
- Average rainfall in December: 75mm
The wettest month (with the highest rainfall) is February (105mm).
The driest month (with the least rainfall) is October (16mm).
Average rainfall days in December
Trou d'Eau Douce, Mauritius
- Average rainfall days in December: 15.8 days
The month with the highest number of rainy days is March (21.8 days).
The month with the least rainy days is November (9.9 days).
Average sea temperature in December
Trou d'Eau Douce, 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
Trou d'Eau Douce, 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 42min
The month with the most sunshine is December (Average sunshine: 10h and 42min).
The month with the least sunshine is July (Average sunshine: 6h and 6min).
Average sunshine days in December
Trou d'Eau Douce, Mauritius
- Average sunshine days in December: 11.1 days
The month with the most sunshine days is November (15 days).
The month with the least sunshine days is February (4 days).
Average UV index in December
Trou d'Eau Douce, Mauritius
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, November and December (UV index 7).
The months with the lowest UV index are May, June, July, August, September and October (UV index 6).
Average cloud cover in December
Trou d'Eau Douce, Mauritius
- Average cloud cover in December: 38
The months with the most cloud cover are March and April (Cloud cover 45).
The month with the least cloud cover is October (Cloud cover 37).
Average visibility in December
Trou d'Eau Douce, 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).
