January weather forecast
Port Louis, Mauritius

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The city of Port Louis in Mauritius
The city of Port Louis in Mauritius

Weather in January

January introduces the year in Port Louis, Mauritius with stable and warm conditions. Average sea temperatures peak at 27.4°C (81.3°F), making beach trips particularly appealing in this month. Compared to the upcoming February, the days are longer in January and the solar exposure marginally higher. Additionally, the trade winds bolster aquatic activities, offering kite surfers and wind surfers ample thrill. Rains, however, are still apparent, though not as heavy as in the preceding month; nevertheless, convenient for cooling down the tropical heat.

Temperature

With January's arrival, Port Louis notes an average high-temperature of a still warm 28.3°C (82.9°F), closely following the trend of the preceding month. In Port Louis, a slight decrease from the daytime peak is noted during the month of January, with an average low-temperature of 25.6°C (78.1°F).

Heat index

The heat index value for January is evaluated at a hot 33°C (91.4°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.

Humidity

January through March, with an average relative humidity of 78%, are the 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 is 27.4°C (81.3°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and similar water activities, ensuring pleasure and comfort for extended periods without feeling uneasy.

Daylight

In January, the average length of the day in Port Louis is 13h and 11min.
On the first day of January, sunrise is at 05:33 and sunset at 18:53. On the last day of the month, sunrise is at 05:52 and sunset at 18:53 +04.

Sunshine

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

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 value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum high UV index of 7 in January translates into the following recommendations:
Use measures and accept sun safety conventions. Guarding against skin and eye trauma is of high priority. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

Frequently asked questions

How hot does it get in Port Louis in January?

In January, in Port Louis, the average high-temperature is 28.3°C (82.9°F), and the average low-temperature is 25.6°C (78.1°F). In January, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is evaluated at 33°C (91.4°F).

What is the most humid month 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, Mauritius, is 78%.

What is the wettest month in Port Louis?

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

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

In Port Louis, Mauritius, in January, during 18.9 rainfall days, 97mm (3.82") of precipitation is typically accumulated.

What is the sea water temperature in January in Port Louis?

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

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

In January, the average day length is 13h and 11min.

What time are sunrise and sunset in January in Port Louis?

On the first day of January, sunrise is at 05:33 and sunset at 18:53. On the last day of the month, sunrise is at 05:52 and sunset at 18:53 +04.

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

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

When is the highest UV index in Port Louis?

The months with the highest UV index in Port Louis, Mauritius, are January through April and December, with an average maximum UV index of 7.

What is the UV index intensity in January in Port Louis?

In January, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to Sun's UV rays.

Average temperature in January
Port Louis, Mauritius

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 pressure in January
Port Louis, Mauritius

Average pressure in January - Port Louis, Mauritius
  • Average pressure in January: 1011.4mbar

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 January
Port Louis, Mauritius

Average wind speed in January - Port Louis, Mauritius
  • Average wind speed in January: 18.2km/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 January
Port Louis, Mauritius

Average humidity in January - Port Louis, Mauritius
  • Average humidity in January: 78%

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 January
Port Louis, Mauritius

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 - 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).
The 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 - 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 / Average sunshine in January - Port Louis, Mauritius
  • Average daylight in January: 13h and 1min

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 January: 9h and 4min

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 January
Port Louis, Mauritius

Average sunshine days in January - Port Louis, Mauritius
  • Average sunshine days in January: 8.9 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 January
Port Louis, Mauritius

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

Average cloud cover in January - Port Louis, Mauritius
  • Average cloud cover in January: 44

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 January
Port Louis, Mauritius

Average visibility in January - Port Louis, Mauritius
  • Average visibility in January: 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).

Port Louis, Mauritius

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