September weather forecast
Le Morne, Mauritius

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The Le Morne mountain in the middle of a beautiful blue lagoon in Mauritius Island
The Le Morne mountain in the middle of a beautiful blue lagoon in Mauritius Island

Weather in September

September in Le Morne, Mauritius is a hot month with the lowest rainfall level of the year of 68mm (2.68"). It witnesses the lowest rainfall days and a further rise in UV index, setting the stage for the warmer season ahead. Although the sea temperature remains consistent from August, air temperatures show a subtle increase. Progressing into October, expect increased air and sea temperatures along with a rise in rainfall. With longer daylight and plenty of sunshine, September promises a plethora of opportunities for beach activities and outdoor adventures.

Temperature

Upon the onset of September, Le Morne witnesses an average high-temperature of a moderately hot 23°C (73.4°F), showing a close resemblance to the prior month. In September, the temperature drops to an average of 16°C (60.8°F) at night.

Rainfall

In Le Morne, Mauritius, during September, the rain falls for 15 days and regularly aggregates up to 68mm (2.68") of precipitation. In Le Morne, during the entire year, the rain falls for 209 days and collects up to 1814mm (71.42") of precipitation.

Sea temperature

August and September, with an average sea temperature of 23°C (73.4°F), are months with the coldest seawater.
Note: Every individual's cold threshold differs, but factors like today's sunshine, wind, and temperature can tip the scales for a delightful swim in 23°C (73.4°F) waters. For reference, Olympians swim in waters of 25°C (77°F) to 28°C (82.4°F).

Daylight

The average length of the day in September is 11h and 59min.
On the first day of the month, sunrise is at 06:19 and sunset at 18:02. On the last day of September, in Le Morne, sunrise is at 05:52 and sunset at 18:08 +04.

Sunshine

April through September, with an average of 6h of sunshine, are months with the least sunshine.

UV index

The average daily maximum UV index in September is 10. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from unsafe exposure to UV radiation for the average person.
Note: In September, a regular UV index of 10 translates into these guidelines:
Skin and eyes are vulnerable without protection. Ensure you always take precautions. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Limiting time under the Sun is advisable, especially for individuals who tend to burn. Ensure using sunscreen with a 30 SPF or higher. Caution! The Sun's UV rays become stronger due to reflections from water and sand.
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Frequently asked questions

What is the usual temperature for Le Morne in September?

The average high-temperature, in September, in Le Morne, is 23°C (73.4°F), while the average low-temperature is 16°C (60.8°F).

How much does it rain in Le Morne in September?

In Le Morne, in September, it is raining for 15 days, with typically 68mm (2.68") of accumulated precipitation.

When is the sea coldest in Le Morne?

August and September, with an average sea temperature of 23°C (73.4°F), are months with the coldest seawater.

What is the sea temperature in September in Le Morne?

In September, the average sea temperature in Le Morne, Mauritius, is 23°C (73.4°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 23°C (73.4°F) water.

How many hours of daylight does Le Morne have in September?

In Le Morne, the average day length in September is 11h and 59min.

When is the sunrise / sunset in September in Le Morne?

In September, on the first day of the month, sunrise is at 06:19 and sunset at 18:02. On the last day of the month, in Le Morne, Mauritius, sunrise is at 05:52 and sunset at 18:08 +04.

What are the months with the least sunshine in Le Morne?

April through September, with an average of 6h of sunshine, are months with the least sunshine in Le Morne.

How long on average sun shines in September in Le Morne?

In Le Morne, the average sunshine duration in September is 6h.

What is the UV index intensity in September in Le Morne?

The average daily maximum UV index in September in Le Morne is 10. A UV Index value of 8 to 10 symbolizes a very high health vulnerability from exposure to the Sun's UV radiation.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in September
Le Morne, Mauritius

Average temperature in September - Le Morne, Mauritius
  • Average high temperature in September: 23°C

The warmest months (with the highest average high temperature) are January, February and March (28°C).
The months with the lowest average high temperature are July and August (22°C).

  • Average low temperature in September: 16°C

The months with the highest average low temperature are January, February and March (21°C).
The coldest month (with the lowest average low temperature) is August (15°C).

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Average rainfall in September
Le Morne, Mauritius

Average rainfall in September - Le Morne, Mauritius
  • Average rainfall in September: 68mm

The wettest month (with the highest rainfall) is February (274mm).
The driest month (with the least rainfall) is October (67mm).

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Average rainfall days in September
Le Morne, Mauritius

Average rainfall days in September - Le Morne, Mauritius
  • Average rainfall days in September: 15 days

The month with the highest number of rainy days is February (21 days).
The months with the least rainy days are October and November (14 days).

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Average sea temperature in September
Le Morne, Mauritius

Average sea temperature in September - Le Morne, Mauritius
  • Average sea temperature in September: 23°C

The best month for swimming (with the highest average sea temperature) is February (28°C).
The coldest months (with the lowest average sea temperature) are August and September (23°C).

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Average daylight in September /
Average sunshine in September
Le Morne, Mauritius

Average daylight in September / Average sunshine in September - Le Morne, Mauritius
  • Average daylight in September: 12h and 0min

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 September: 6h

The months with the most sunshine are January, February, March, October, November and December (Average sunshine: 7h).
The months with the least sunshine are April, May, June, July, August and September (Average sunshine: 6h).

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Average UV index in September
Le Morne, Mauritius

Average UV index in September - Le Morne, Mauritius
  • Average UV index in September: 10

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

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Le Morne, Mauritius

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