The in-between seasons (APRIL-MAY, OCTOBER-NOVEMBER)
On Reunion Island, there are two distinct seasons: austral winter (May to October) and austral summer (November to April). But in-between these seasons there are periods of the year that are sometimes difficult to determine. October and November often mark the beginning of the rainy season and April and May mark the beginning of austral winter. These periods are difficult to determine because some years, the rainy season will begin earlier or later. On the coast the temperature may decrease to 19 or 20 degrees at night, but in the highlands, it can go down to 5 degrees. In the day, temperatures can reach 27 to 29 degrees on the coast, and 18 to 22 degrees in the Highlands.