Map from Google - Reunion

In Réunion, overseas departments of France located in the Indian Ocean and south of the Equator, the climate is tropical, with a hot and humid season from November to April, in which the north-west monsoon predominates, and a cool season from May to October, ie the austral winter, when the south-east trade winds predominate. During the latter period, daytime temperatures drop to around 77 °F, and night-time temperatures to around 64/68 °F, but sometimes they can drop to 59/61 °F, especially in the coolest months, July and August. On the contrary, during the warmer period, the temperature hovers around 82/84 °F during the day, and around 75/77 °F at night.
Here are the average temperatures of the capital St. Denis.
Average temperatures - Saint-Denis
Min (°F)737373727068646464687073
Max (°F)848282827977757577798182

The rains occur in the form of brief but intense showers, called avalasses. The inner highlands enhance the formation of thunderclouds in the slopes exposed to the wind, while partially sheltering the leeward sides, so that in the inland areas the rainfall can reach even 235 inches per year (19.5 feet), while along the coast, it hovers around 60 in. However, the rains are most abundant from January to March, when generally more than 8 inches per month fall along the coast, and even 40 inches per month on inland slopes. Generally the rainiest month is January. However, some showers may occur even in the driest months.
Here is the average precipitation in St. Denis.
Average precipitation - Saint-Denis
Prec. (in)

Inside the island there is a town, Cilaos, at 3,900 feet above sea level, inside the caldera of the volcano Piton des Neiges, where from 15 to 16 March 1952, even 73.6 in of rain fell, beating the world record of the highest 24-hour rainfall.

Piton des neiges is 10,069 feet high, but despite its name ("the snowy peak"), it almost never sees snow. In the south-east of the island there is another volcano, Piton de la Fournaise, very active, 8,635 feet high.

The amount of sunshine is good all year round along the coast, because as we said the rains do not last long, while on the slopes of the volcanoes, the sky is often cloudy.

The island of Réunion is located in the path of tropical cyclones, whose season runs from November 1 to May 15, although they are most common from late December to mid-April.


The sea temperature is high enough for swimming all year round, however, it decreases to 73/75 °F between July and October.
Sea temperature - Saint-Pierre
Sea (°F)818281817977757373757781

When to go

The best time to visit Réunion is the austral winter, ie from mid-May to October, because it's cooler and drier, and out of the period of hurricanes. However, for beach life, during this period the weather can be a bit cool, also because of the south-east trade winds, which blow especially along the eastern and southern coasts. Therefore, you can choose the second half of May and the month of October, which are slightly warmer, and still choose the northern coast, where Saint-Denis is located, which is more sheltered from the wind. For the evening and for hiking in the mountains, it's better to bring a sweatshirt or jacket, especially for those who are sensitive to cold.

If you want to go in December and January, a period which in any case is not recommended because of the risk of cyclones, you can choose the southern coast, where Saint-Pierre is located, being less rainy.

What to pack

In winter (May to October): on the coast, light clothes, sweatshirt or sweater, a light jacket, a scarf for the breeze; in Cilaos, spring/autumn clothes, raincoat; to climb mountains, hiking boots, fleece, raincoat.
In summer (December to arch): along the coast, tropics-friendly, loose fitting clothing, light shirts and pants of natural fibers (cotton, linen), a light sweatshirt for the evening, light raincoat or umbrella; in Cilaos, light clothes, sweatshirt or sweater, a light jacket, raincoat.