Weather is probably a major factor when you plan your trip to Saint-Paul, but bear in mind that cheaper options are usually available when the weather isn't as good. 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-Paul are January, February, March and December, with each month seeing an average of 257 mm of rainfall.