West Island experiences a
tropical rainforest climate (
Köppen:
Af,
Trewartha:
Aral), with hot and humid conditions experiences year round. The islands experience two seasons that often overlap: the trade wind season from May/June to September/October, and the calmer doldrum season from November through to May. Precipitation is moderate to high year round, thanks to its position at the southern edge of the equatorial low pressure belt. North-west monsoons deliver rain during the doldrum, while the southeastern trade winds also give rain for much of the year. Cyclones have the potential to seriously effect the flora and fauna on the island. The
1989-90 South-West Indian Ocean cyclone season caused damage to the islands, with Tropical Cyclone Walter hitting the island around 13 March 1990. Extreme temperatures, however, are subdued by the influence of the Indian Ocean. Extremes only range from 32.8 °C (91.0 °F) on 23 February 2017 to 20.4 °C (68.7 °F) on 27 December 2018. }} == See also ==