Saint Lucia is a region with a tropical climate. Temperatures during the day are in the range from 29 °C (84 °F) in January to 32 °C (89 °F) in September. Sea temperatures are in the following range: 26 °C (80 °F) in February to 29 °C (84 °F) in September. Temperatures during the night go from 22 °C (71 °F) in February to 24 °C (75 °F) in July. The driest month is March with just 13 days of rain, on the contrary, the month when it rains the most is July with 21 days of rain.