January 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
January, like December, in Port Louis, Mauritius, is another warm summer month, with temperature in the range of an average low of 25.6°C (78.1°F) and an average high of 28.3°C (82.9°F).

Temperature

In Port Louis, the average high-temperature is almost the same as in December - a still moderately hot 28.3°C (82.9°F). In Port Louis, Mauritius, the average low-temperature is 25.6°C (78.1°F).

Heat index

In January, the average heat index is appraised at a hot 32.5°C (90.5°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'felt air temperature', 'feels like', or 'apparent temperature', combines air temperature and relative humidity to represent a human perceived temperature equivalent. This effect is individual, with diverse people perceiving weather differently for numerous reasons (pregnancy, wind, differences in body mass, height, and shape), and activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

January through March, with an average relative humidity of 78%, are most humid months.

Rainfall

January is the month with the most rainfall. Rain falls for 18.9 days and accumulates 97mm (3.82") of precipitation.

Sea temperature

In January, the average sea temperature in Port Louis, Mauritius, is 27.4°C (81.3°F).
Note: 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.

Daylight

In January, the average length of the day in Port Louis is 13.2h.

Sunshine

In January, the average sunshine in Port Louis is 9.6h.

UV index

January through April and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to the UV radiation for average individuals.
Note: The daily maximum UV index of 7 interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. 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. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in January in Port Louis?

The average high-temperature, in January, in Port Louis, is 28.3°C (82.9°F), while the average low-temperature is 25.6°C (78.1°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), that represents influence of the relative humidity to air temperaure, in January is evaluated at 32.5°C (90.5°F).

What are the most humid months in Port Louis?

January through March, with an average relative humidity of 78%, are most humid months.

What is the average humidity in January in Port Louis?

The average relative humidity in January in Port Louis is 78%.

How much does it rain in Port Louis in January?

In Port Louis, in January, it is raining for 18.9 days, with typically 97mm (3.82") of accumulated precipitation.

What is the rainiest month in Port Louis?

The month with the most rainfall in Port Louis, Mauritius, is January when the rain falls for 18.9 days and typically aggregates up to 97mm (3.82") of precipitation.

What is the water temperature in January in Port Louis?

In Port Louis, Mauritius, the average seawater temperature in January is 27.4°C (81.3°F). 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.

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

In Port Louis, Mauritius, the average length of the day in January is 13.2h.

How long on average sun shines in January in Port Louis?

In Port Louis, Mauritius, the average sunshine in January is 9.6h.

What is the month with the highest UV index in Port Louis?

January through April and December, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in January in Port Louis?

In Port Louis, Mauritius, the average daily maximum UV index in January is 7. A UV Index reading of 6 to 7 represents a high health threat from the exposure to the Sun's UV rays.
Average temperature in January - Port Louis, Mauritius
  • Average high temperature in January: 28.3°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 January: 25.6°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 humidity in January - Port Louis, Mauritius
  • Average humidity in January: 78%

Months with the highest relative humidity are January, February and March (78%).
Months with the lowest relative humidity are August and September (73%).

Average rainfall in January - Port Louis, Mauritius
  • Average rainfall in January: 97mm

The wettest month (with the highest rainfall) is January (97mm).
The driest month (with the least rainfall) is September (8mm).

Average rainfall days in January - Port Louis, Mauritius
  • Average rainfall days in January: 18.9 days

The month with the highest number of rainy days is March (20.8 days).
Months with the least rainy days are October and November (9.5 days).

Average sea temperature in January - Port Louis, Mauritius
  • Average sea temperature in January: 27.4°C

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

Average daylight in January / Average sunshine in January - Port Louis, Mauritius
  • Average daylight in January: 13.2h

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

  • Average sunshine in January: 9.6h

The month with the most sunshine is October (Average sunshine: 10.4h).
The month with the least sunshine is July (Average sunshine: 6.3h).

Average UV index in January - Port Louis, Mauritius
  • Average UV index in January: 7

Months with the highest UV index are January, February, March, April and December (UV index 7).
Months with the lowest UV index are May, June, July, August, September, October and November (UV index 6).