May weather forecastSaint-Pierre, Reunion

May

Weather in May

As Saint-Pierre moves into May, the weather begins to dry up, giving way to a significant decrease in rainfall, which falls to 44mm (1.73"), ushering in the driest period of the year. The high and low temperatures continue their downward trend from April, providing noticeably cooler days and nights. Simultaneously, the UV index remains constant from the preceding months, stagnant at 6. Coincidentally, May also sees the least hours of daylight in the first half of the year, adding to the overall drop in temperatures. This transitional weather brings about a refreshing change, pushing towards milder and less humid conditions.

Temperature

With the arrival of May, Saint-Pierre's average high-temperature registers at a still moderately hot 23.6°C (74.5°F), indicating a subtle variation from the previous month. May in Saint-Pierre sees a slight dip to an average low temperature of 21.2°C (70.2°F) from the daytime highs.

Humidity

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

Rainfall

In May, the rain falls for 17.5 days. Throughout May, 44mm (1.73") of precipitation is accumulated. In Saint-Pierre, during the entire year, the rain falls for 207.9 days and collects up to 756mm (29.76") of precipitation.

Sea temperature

In Saint-Pierre, the average seawater temperature in May is 26.4°C (79.5°F).
Note: Water surface temperatures from 25°C (77°F) to 29°C (84.2°F) are considered optimal and extremely delightful for long-lasting pleasure in any water activity.

Daylight

In Saint-Pierre, the average length of the day in May is 11h and 6min.
On the first day of May in Saint-Pierre, sunrise is at 06:35 and sunset at 17:54. On the last day of the month, sunrise is at 06:48 and sunset at 17:43 +04.

Sunshine

With an average of 6.9h of sunshine, May has the least sunshine of the year.

UV index

The months with the lowest UV index in Saint-Pierre are January, March through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: A maximum high UV index of 6 in May translates into the following recommendations:
Guard oneself from overexposure. Defence against sun injury is vital. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Caution! The Sun's UV rays become stronger due to reflections from water and sand.

Updated: Feb 5, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature in Saint-Pierre, Reunion, during May is 23.6°C (74.5°F) and the low-temperature is 21.2°C (70.2°F).

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

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

In Saint-Pierre, in May, the average water temperature is 26.4°C (79.5°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.

In May, the average day length in Saint-Pierre, Reunion, is 11h and 6min.

On the first day of May in Saint-Pierre, Reunion, sunrise is at 06:35 and sunset at 17:54. On the last day of the month, sunrise is at 06:48 and sunset at 17:43 +04.

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

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

The months with the lowest UV index in Saint-Pierre, Reunion, are January, March through December, with an average maximum UV index of 6.

In Saint-Pierre, the average daily maximum UV index in May is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

25.3°C

23.6°C

22.3°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

17.3km/h

19.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

19.8

17.5

13.9

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

5.3

7.5

11.4

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Saint-Pierre, 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-Pierre, 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-Pierre, 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-Pierre, 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-Pierre, 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-Pierre, 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 sea temperature in May
Saint-Pierre, Reunion

Average sea temperature in May: 26.4°C

The best month for swimming (with the highest average sea temperature) is March (28.4°C).
The coldest month (with the lowest average sea temperature) is September (23.7°C).

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

Average daylight in May: 11h and 6min

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 54min

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-Pierre, 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-Pierre, 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-Pierre, 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-Pierre, 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).