May weather forecast
Reunion

May in Reunion marks the onset of the cooler, drier winter season. Coastal regions experience temperatures between 21°C (69.8°F) to 26°C (78.8°F), a noticeable drop from the preceding months. The highlands, where the climate is generally cooler, see temperatures ranging from 15°C (59°F) to 20°C (68°F).

Cities like Saint-Denis and Saint-Pierre mirror these temperature patterns, and the reduced humidity levels make the cooler temperatures feel quite comfortable. As the heat of the summer recedes, outdoor activities become more pleasant and enjoyable.

May also sees a significant reduction in rainfall across the island. The eastern coast and the mountainous regions receive between 100mm (3.94") to 200mm (7.87") of rainfall, a substantial decrease from the summer months. The western coast continues to enjoy drier conditions, with considerably less precipitation due to the island's rain shadow effect.

When comparing May to the preceding month of April, the weather is noticeably cooler and drier. As the island transitions into June, these winter conditions continue, with even lower temperatures and less rainfall, marking a clear shift away from the hot, wet summer months.

---

• Saint-Denis - May »
  In Saint-Denis in May, it is raining for 9.6 days, with typically 98mm (3.86") of accumulated precipitation. On the last day of the month, in Saint-Denis, sunrise is at 06:47 and sunset at 17:44 +04.
• Saint-Paul - May »
  In Saint-Paul in May, during 18.8 rainfall days, 38mm (1.5") of precipitation is typically accumulated. In Saint-Paul, Reunion, in May, the average water temperature is 26.4°C (79.5°F).
• Saint-Pierre - May »
  On the first day of May in Saint-Pierre, Reunion, sunrise is at 06:35 and sunset at 17:54. The months with the lowest UV index in Saint-Pierre, Reunion, are January, March through December, with an average maximum UV index of 6.
• Saint-Louis - May »
  Despite the year progressing, May in Saint-Louis, Reunion, carries forward the lower rainfall pattern from April, reducing further to 44mm (1.73"). Throughout the year, in Saint-Louis, there are 207.9 rainfall days, and 756mm (29.76") of precipitation is accumulated.
• Le Port - May »
  On the first day of May in Le Port sunrise is at 06:36 and sunset at 17:55. For swimming, diving, and other water activities, temperatures between 25°C (77°F) and 29°C (84.2°F) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.
• Saint-Joseph - May »
  On the last day of May, in Saint-Joseph, sunrise is at 06:47 and sunset at 17:42 +04. Swimming, diving, and other water activities in temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are highly enjoyable and provide prolonged comfort without unease.
• Saint-Leu - May »
  On the last day of the month, in Saint-Leu, sunrise is at 06:48 and sunset at 17:44 +04. Throughout the year, in Saint-Leu there are 189 rainfall days, and 1491mm (58.7") of precipitation is accumulated.
• Les Avirons - May »
  Surface water temperatures ranging from 25°C (77°F) to 29°C (84.2°F) are considered superb and highly pleasant for water activities over extended periods. May introduces the city of Les Avirons, Reunion to a cooler sea as temperatures gradually descend more noticeably from 27.6°C (81.7°F) in April to 26.4°C (79.5°F).