May weather forecast
Saint-Louis, Reunion

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Weather in May

Despite the year progressing, May in Saint-Louis, Reunion, carries forward the lower rainfall pattern from April, reducing further to 44mm (1.73"). The days start to get shorter with dimming sunlight hours, indicating the gradual transition towards the winter season. Even as the city is heading towards colder months, the temperature remains mild and comfortable. Traveling or sightseeing around Saint-Louis during this month can be a delightful experience due to these pleasant weather conditions. As the calendar moves towards June, one can expect further dip in temperature and rainfall.

Temperature

The average high-temperature in Saint-Louis during May registers at a still warm 23.6°C (74.5°F), maintaining a close resemblance to the previous month. Throughout May, a modest shift from daytime highs is anticipated, with an average low-temperature of 21.2°C (70.2°F).

Humidity

In May, the average relative humidity is 79%.

Rainfall

In Saint-Louis, in May, during 17.5 rainfall days, 44mm (1.73") of precipitation is typically accumulated. Throughout the year, in Saint-Louis, there are 207.9 rainfall days, and 756mm (29.76") of precipitation is accumulated.

Daylight

In Saint-Louis, Reunion, the average length of the day in May is 11h and 6min.
On the first day of the month, sunrise is at 06:36 and sunset at 17:54. On the last day of May, in Saint-Louis, sunrise is at 06:48 and sunset at 17:43 +04.

Sunshine

The month with the least sunshine in Saint-Louis is May, with an average of 6.9h of sunshine.

UV index

The months with the lowest UV index are January, March through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.
Note: An average UV index of 6 in May transforms into this advice:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Feb 5, 2024 | Published by: Weather Atlas | About Us / Weather Forecasting / Data Sources

Frequently asked questions

What is the average May temperature in Saint-Louis?

In May, in Saint-Louis, the average high-temperature is 23.6°C (74.5°F), and the average low-temperature is 21.2°C (70.2°F).

What is the average humidity in May in Saint-Louis?

In Saint-Louis, the average relative humidity in May is 79%.

How many days does it rain in May in Saint-Louis?

In Saint-Louis, in May, it is raining for 17.5 days, with typically 44mm (1.73") of accumulated precipitation.

How many hours of daylight does Saint-Louis have in May?

The average day length in May is 11h and 6min.

When is the sunrise / sunset in May in Saint-Louis?

On the first day of May in Saint-Louis, sunrise is at 06:36 and sunset at 17:54. On the last day of the month, sunrise is at 06:48 and sunset at 17:43 +04.

What is the month with the least sunshine in Saint-Louis?

With an average of 6.9h of sunshine, May has the least sunshine of the year in Saint-Louis.

How many hours of sunshine does Saint-Louis have in May?

In May, the average sunshine duration in Saint-Louis, Reunion, is 6.9h.

What is the month with the lowest UV index in Saint-Louis?

January, March through December, with an average maximum UV index of 6, are months with the lowest UV index.

What is the UV index reading in May in Saint-Louis?

The average daily maximum UV index in May in Saint-Louis, Reunion, is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.

Average temperature in May
Saint-Louis, Reunion

Average temperature in May - Saint-Louis, Reunion
  • Average high temperature in May: 23.6°C

The warmest months (with the highest average high temperature) are January, February and March (26.3°C).
The month with the lowest average high temperature is July (21.3°C).

  • Average low temperature in May: 21.2°C

The months with the highest average low temperature are January and February (24.3°C).
The coldest month (with the lowest average low temperature) is July (18.8°C).

Average pressure in May
Saint-Louis, Reunion

Average pressure in May - Saint-Louis, Reunion
  • Average pressure in May: 1017.5mbar

The month with the highest atmospheric pressure is August (1021.5mbar).
The month with the lowest atmospheric pressure is February (1011.1mbar).

Average wind speed in May
Saint-Louis, Reunion

Average wind speed in May - Saint-Louis, Reunion
  • Average wind speed in May: 16.7km/h

The windiest month (with the highest average wind speed) is July (19.8km/h).
The calmest month (with the lowest average wind speed) is November (13.4km/h).

Average humidity in May
Saint-Louis, Reunion

Average humidity in May - Saint-Louis, Reunion
  • Average humidity in May: 79%

The months with the highest relative humidity are January, February, March and April (81%).
The months with the lowest relative humidity are July, August and September (77%).

Average rainfall in May
Saint-Louis, Reunion

Average rainfall in May - Saint-Louis, Reunion
  • Average rainfall in May: 44mm

The wettest month (with the highest rainfall) is January (162mm).
The driest month (with the least rainfall) is September (10mm).

Average rainfall days in May
Saint-Louis, Reunion

Average rainfall days in May - Saint-Louis, Reunion
  • Average rainfall days in May: 17.5 days

The month with the highest number of rainy days is March (24.9 days).
The month with the least rainy days is September (9.5 days).

Average daylight in May /
Average sunshine in May
Saint-Louis, Reunion

Average daylight in May / Average sunshine in May - Saint-Louis, Reunion
  • Average daylight in May: 11h and 1min

The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).

  • Average sunshine in May: 6h and 5min

The month with the most sunshine is October (Average sunshine: 10h and 54min).
The month with the least sunshine is May (Average sunshine: 6h and 54min).

Average sunshine days in May
Saint-Louis, Reunion

Average sunshine days in May - Saint-Louis, Reunion
  • Average sunshine days in May: 7.5 days

The month with the most sunshine days is August (13.5 days).
The month with the least sunshine days is February (1.7 days).

Average UV index in May
Saint-Louis, Reunion

Average UV index in May - Saint-Louis, Reunion
  • Average UV index in May: 6

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

Average cloud cover in May
Saint-Louis, Reunion

Average cloud cover in May - Saint-Louis, Reunion
  • Average cloud cover in May: 27

The month with the most cloud cover is February (Cloud cover 38).
The month with the least cloud cover is September (Cloud cover 21).

Average visibility in May
Saint-Louis, Reunion

Average visibility in May - Saint-Louis, Reunion
  • Average visibility in May: 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).

Saint-Louis, Reunion

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