The islands enjoy a pleasant tropical climate all year round, with a yearly average temperature of 26°C (79°F). The warmest month is September, with an average temperature of 27°C (81°F); the coolest is January, with an average temperature of 25°C (77°F).
The average yearly rainfall on St. Vincent is 231 cm (91 in), but in the mountainous areas the average rainfall is more than 380 cm (150 in) a year. May or June through December is the rainy season.