BIOT (Chagos) - Weather

Sep 19, 2025

BIOT Chagos Weather for Sailors

The BIOT Chagos archipelago has a tropical maritime climate influenced by the Indian Ocean. Temperatures are high all year round. Average annual precipitation figures are high as well.

The islands are constantly influenced by the trade wind that blows here. Because of high temperatures in combination with high precipitation figures humidity figures are high as well. However, humidity figures are tempered by the trade winds. From December till May there is a risk of tropical storms and hurricanes

Chagos Weather

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