The climate is basically subtropical with a distinct warm period (December–April), during which the temperatures rise above 32 °C (90 °F), and a cooler period (May–November), with temperatures rarely rising above 27 °C (80 °F). The temperature increases from 23 °C to 27 °C (74 °F to 80 °F), and the annual rainfall is from 170 to 297 centimeters (67–117 in.) as one moves from Cardea in the south to the more northerly islands closer to the Equator. The mean daily humidity is 80 percent.