May weather forecastLa Réunion, Seychelles
May
Weather in May
May ushers in favorable weather conditions for Seychelles, with a further reduction in rainfall, especially in La Réunion. The amount of sunlight slightly increases from the previous month, reaching an average of 7.9 hours per day. Cooling breezes from the northeast trade winds become more prevalent, rendering the weather pleasant and suitable for numerous outdoor activities. The sea temperature remains constant, promising continued water-based activities. Sea lovers would find this month particularly inviting to explore the rich marine life around the islands.Temperature
La Réunion experiences an average high-temperature of a still moderately hot 28.9°C (84°F) with the onset of May, subtly varied from April's 29.3°C (84.7°F). An average low-temperature of 27.8°C (82°F), slightly less than the daytime peak, marks the month of May.Heat index
The heat index value during May is computed to be a hot 34°C (93.2°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.Heat index values are typically calculated for conditions of shade and a light breeze. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', marries air temperature and humidity to produce a value illustrating perceived warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values remain especially vital for babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Humidity
The average relative humidity in May is 76%.Rainfall
In May, the rain falls for 22.6 days. Throughout May, 170mm (6.69") of precipitation is accumulated. In La Réunion, during the entire year, the rain falls for 241.9 days and collects up to 1432mm (56.38") of precipitation.Sea temperature
In La Réunion, in May, the average water temperature is 29°C (84.2°F).Note: Water temperatures between 25°C (77°F) and 29°C (84.2°F) are regarded as very warm, ensuring all water activities are pleasurable for extended periods without feeling uneasy.
Daylight
The average length of the day in May is 11h and 55min.On the first day of May, sunrise is at 06:14 and sunset at 18:12. On the last day of the month, sunrise is at 06:17 and sunset at 18:11 +04.
Sunshine
The average sunshine in May in La Réunion is 7.9h.UV index
January through December, with an average maximum UV index of 7, are months with the highest UV index in La Réunion. The months with the lowest UV index in La Réunion are January through December, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum high UV index of 7 in May translates into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Stay aware! UV radiation is magnified when reflecting off sand and water.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
La Réunion, Seychelles
- Average high temperature in May: 28.9°C
The warmest month (with the highest average high temperature) is April (29.3°C).
The month with the lowest average high temperature is August (26.4°C).
- Average low temperature in May: 27.8°C
The month with the highest average low temperature is April (28.1°C).
The coldest months (with the lowest average low temperature) are July and August (25.7°C).
Average pressure in May
La Réunion, Seychelles
- Average pressure in May: 1010.6mbar
The month with the highest atmospheric pressure is August (1012.4mbar).
The month with the lowest atmospheric pressure is April (1010.4mbar).
Average wind speed in May
La Réunion, Seychelles
- Average wind speed in May: 19.1km/h
The windiest month (with the highest average wind speed) is August (28.1km/h).
The calmest month (with the lowest average wind speed) is April (12.8km/h).
Average humidity in May
La Réunion, Seychelles
- Average humidity in May: 76%
The months with the highest relative humidity are July, August and September (80%).
The month with the lowest relative humidity is April (73%).
Average rainfall in May
La Réunion, Seychelles
- Average rainfall in May: 170mm
The wettest month (with the highest rainfall) is January (220mm).
The driest month (with the least rainfall) is August (50mm).
Average rainfall days in May
La Réunion, Seychelles
- Average rainfall days in May: 22.6 days
The month with the highest number of rainy days is January (23.2 days).
The month with the least rainy days is November (17.3 days).
Average sea temperature in May
La Réunion, Seychelles
- Average sea temperature in May: 29°C
The best month for swimming (with the highest average sea temperature) is April (30°C).
The coldest months (with the lowest average sea temperature) are July and August (26°C).
Average daylight in May /
Average sunshine in May
La Réunion, Seychelles
- Average daylight in May: 11h and 54min
The month with the longest days is December (Average daylight: 12h and 24min).
The month with the shortest days is June (Average daylight: 11h and 54min).
- Average sunshine in May: 7h and 54min
The month with the most sunshine is November (Average sunshine: 10h and 6min).
The month with the least sunshine is September (Average sunshine: 7h and 0min).
Average sunshine days in May
La Réunion, Seychelles
- Average sunshine days in May: 4.4 days
The month with the most sunshine days is November (10.9 days).
The month with the least sunshine days is June (3 days).
Average UV index in May
La Réunion, Seychelles
- Average UV index in May: 7
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 7).
Average cloud cover in May
La Réunion, Seychelles
- Average cloud cover in May: 43
The month with the most cloud cover is September (Cloud cover 51).
The month with the least cloud cover is November (Cloud cover 41).
Average visibility in May
La Réunion, Seychelles
- Average visibility in May: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).





