December weather forecastSainte-Croix, Mauritius
December
Weather in December
Concluding the year, December continues to embrace the tropical climate with temperatures reaching an average high of 27.6°C (81.7°F). The number of rainfall days increases to 13.5 days along with a change in wind speed to 17.5km/h (10.9mph). The weather in December remains satisfactory for a variety of outdoor activities, as the city says goodbye to a year filled with rich, tropical climatic experiences.Temperature
December in Sainte-Croix, Mauritius, notes an average high-temperature of a still moderately hot 27.6°C (81.7°F), subtly differing from November's 26.3°C (79.3°F). Sainte-Croix sees a gentle drop from the daily peak temperature in December, with an average low settling at a still warm 25.2°C (77.4°F).Heat index
In December, the average heat index is evaluated at a tropical 30°C (86°F). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.In terms of the heat index, values are set with light wind and shade conditions in mind. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gives an indication of how one might feel in terms of heat after considering humidity. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
In Sainte-Croix, the average relative humidity in December is 75%.Rainfall
In Sainte-Croix, Mauritius, in December, during 13.5 rainfall days, 50mm (1.97") of precipitation is typically accumulated. In Sainte-Croix, during the entire year, the rain falls for 177.1 days and collects up to 480mm (18.9") of precipitation.Daylight
December has the longest days of the year in Sainte-Croix, Mauritius, with an average of 13h and 18min of daylight.On the first day of December in Sainte-Croix, sunrise is at 05:21 and sunset at 18:36. On the last day of the month, sunrise is at 05:33 and sunset at 18:52 +04.
Sunshine
The average sunshine in December is 10.3h.UV index
The months with the highest UV index are January through April and December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum daily UV index of 7 during December translates into the following directions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Sainte-Croix, Mauritius
- Average high temperature in December: 27.6°C
The warmest month (with the highest average high temperature) is February (28.6°C).
The month with the lowest average high temperature is August (23.5°C).
- Average low temperature in December: 25.2°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
Sainte-Croix, Mauritius
- Average pressure in December: 1013.3mbar
The month with the highest atmospheric pressure is August (1021mbar).
The month with the lowest atmospheric pressure is February (1011.1mbar).
Average wind speed in December
Sainte-Croix, Mauritius
- Average wind speed in December: 17.5km/h
The windiest month (with the highest average wind speed) is August (23.6km/h).
The calmest month (with the lowest average wind speed) is November (17.1km/h).
Average humidity in December
Sainte-Croix, Mauritius
- Average humidity in December: 75%
The months with the highest relative humidity are January, February and March (78%).
The months with the lowest relative humidity are August and September (73%).
Average rainfall in December
Sainte-Croix, Mauritius
- Average rainfall in December: 50mm
The wettest month (with the highest rainfall) is January (97mm).
The driest month (with the least rainfall) is September (8mm).
Average rainfall days in December
Sainte-Croix, Mauritius
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is March (20.8 days).
The months with the least rainy days are October and November (9.5 days).
Average daylight in December /
Average sunshine in December
Sainte-Croix, 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 18min
The month with the most sunshine is October (Average sunshine: 10h and 24min).
The month with the least sunshine is July (Average sunshine: 6h and 18min).
Average sunshine days in December
Sainte-Croix, Mauritius
- Average sunshine days in December: 13.1 days
The month with the most sunshine days is October (17.4 days).
The month with the least sunshine days is February (5.2 days).
Average UV index in December
Sainte-Croix, 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
Sainte-Croix, Mauritius
- Average cloud cover in December: 39
The months with the most cloud cover are January and March (Cloud cover 44).
The month with the least cloud cover is May (Cloud cover 35).
Average visibility in December
Sainte-Croix, 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).





