Port Louis
Mauritius
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Port Louis, Mauritius

The city of Port Louis in Mauritius, viewed from above, with a view of the sea and cloudy sky
The city of Port Louis in Mauritius, viewed from above, with a view of the sea and cloudy sky
December, the first month of the summer, in Port Louis, is still a tropical month, with temperature in the range of an average high of 31.1°C (88°F) and an average low of 23.2°C (73.8°F).

Temperature

In December, the average high-temperature is almost the same as in November - a still tropical 31.1°C (88°F). In December, the average low-temperature is 23.2°C (73.8°F).

Rainfall

In December, the rain falls for 6 days. Throughout December, 85mm (3.3") of precipitation is accumulated. In Port Louis, during the entire year, the rain falls for 68 days and collects up to 711mm (28") of precipitation.

Sea temperature

In Port Louis, Mauritius, the average water temperature is 26.8°C (80.2°F).
Note: Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

December has the longest days of the year, with an average of 13.3h of daylight.

Sunshine

Months with the most sunshine are October through December, with an average of 9h of sunshine.

UV index

Months with the highest UV index are January through March, October through December, with an average maximum UV index of 12. A UV Index reading of 11, and higher, represents an extreme health hazard from unprotected exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 12 transform into the following instructions:
Take all required precautions, as unprotected skin and eyes can burn in minutes. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Even on cloudy days, a sunscreen with a minimum 30 sun protection factor should be generously applied and frequently re-applied, including after every swim or outdoor exercise. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.

What is the temperature in December in Port Louis?

In Port Louis, Mauritius, in December, the average high-temperature is 31.1°C (88°F), and the average low-temperature is 23.2°C (73.8°F).

How many days does it rain in December in Port Louis?

In Port Louis, during December, the rain falls for 6 days and regularly aggregates up to 85mm (3.3") of precipitation.

How warm is the water in December in Port Louis?

In Port Louis, the average seawater temperature in December is 26.8°C (80.2°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.

When are the longest days in Port Louis?

December has the longest days of the year, with an average of 13.3h of daylight.

How many hours of daylight does Port Louis have in December?

In Port Louis, Mauritius, the average length of the day in December is 13.3h.

What is the month with the most sunshine in Port Louis?

October through December, with an average of 9h of sunshine, are months with the most sunshine.

How many hours of sunshine does Port Louis have in December?

In Port Louis, the average sunshine in December is 9h.

What are the months with the highest UV index in Port Louis?

Months with the highest UV index in Port Louis, Mauritius, are January through March, October through December, with an average maximum UV index of 12.

What is the UV index reading in December in Port Louis?

In Port Louis, the average daily maximum UV index in December is 12. A UV Index value of 11, and more, symbolizes an excessive health risk from the exposure to the Sun's UV rays.
Average temperature in December - Port Louis, Mauritius
  • Average high temperature in December: 31.1°C

Warmest months (with the highest average high temperature) are January and March (31.5°C).
The month with the lowest average high temperature is July (26.7°C).

  • Average low temperature in December: 23.2°C

The month with the highest average low temperature is January (24.1°C).
The coldest month (with the lowest average low temperature) is August (19.1°C).

Average rainfall in December - Port Louis, Mauritius
  • Average rainfall in December: 85mm

The wettest month (with the highest rainfall) is February (160mm).
The driest month (with the lowest rainfall) is October (15mm).

Average rainfall days in December - Port Louis, Mauritius
  • Average rainfall days in December: 6 days

The month with the highest number of rainy days is February (10 days).
Months with the lowest number of rainy days are September, October and November (3 days).

Average sea temperature in December - Port Louis, Mauritius
  • Average sea temperature in December: 26.8°C

The best month for swimming (with the highest average sea temperature) is March (28.5°C).
Coldest months (with the lowest average sea temperature) are August and September (23.7°C).

Average daylight in December / Average sunshine in December - Port Louis, Mauritius
  • Average daylight in December: 13.3h

The month with the longest days is December (Average daylight: 13.3h).
The month with shortest days is June (Average daylight: 10.9h).

  • Average sunshine in December: 9h

Months with most sunshine are October, November and December (Average sunshine: 9h).
Months with least sunshine are March, June, July and August (Average sunshine: 7).

Average UV index in December - Port Louis, Mauritius
  • Average UV index in December: 12

Months with the highest UV index are January, February, March, October, November and December (UV index 12).
Months with the lowest UV index are June and July (UV index 6).