December weather forecast
Trou d'Eau Douce, Mauritius

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

Trou d'Eau Douce starts December with an average high-temperature of a still warm 27.2°C (81°F), a minor shift from November's 25.7°C (78.3°F). Trou d'Eau Douce, in the month of December, notes an average low temperature of 25°C (77°F), indicating a small decrease from the daytime highs.

Heat index

The average heat index in December is estimated at a hot 30°C (86°F). Enduring exposure and unrelenting activity might cause a state of weariness, potentially leading to heat cramps.
In reference to the heat index, it's for places in shade and with a slight wind. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', takes into account both air temperature and humidity to illustrate what people actually feel. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.

Humidity

In Trou d'Eau Douce, the average relative humidity in December is 76%.

Rainfall

In December, the rain falls for 15.8 days. Throughout December, 75mm (2.95") of precipitation is accumulated. Throughout the year, in Trou d'Eau Douce, there are 199.3 rainfall days, and 565mm (22.24") of precipitation is accumulated.

Sea temperature

In Trou d'Eau Douce, the average seawater temperature in December is 27°C (80.6°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are excellent for swimming, diving, and other water activities, providing comfort and enjoyment for extended periods without discomfort.

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 05:19 and sunset at 18:36. On the last day of December, in Trou d'Eau Douce, Mauritius, 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

The months with the highest UV index in Trou d'Eau Douce are January through April, November and December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The UV index of 7 during December leads to these advisories:
Prevent overexposure. Protection from the sun's harmful effects is needed. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Beware! Reflections from sand and water can intensify the Sun's UV radiation.