Planning for the weather is an important factor for making your trip to Saint-Leu a success, especially when you're splurging. The hottest months are usually February and January, with an average temperature of 25°C, while the coldest months are August and July, with an average of 20°C. The rainiest months in Saint-Leu are January, February, March and December, with each month seeing an average of 257 mm of rainfall.