Seychelles
Weather locations in Seychelles
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Seychelles illustrated weather map
2 mapped locations
Only locations with a verified coordinate are marked. The complete location list is below.
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Climate of Seychelles
Country climate guideThe Seychelles are a small group of islands in the western Indian Ocean, spread over more than a million square kilometres of sea between roughly 4°S and 11°S, and they are the remnants of an ancient granite plateau. Mahé, the main island, rises to 905 metres, while the inner islands are low; the outer islands of the south, including the Aldabra group, lie almost at sea level. Close to the equator and surrounded by warm sea, the group has no cold season, and the weather follows the monsoon and the sea.
Main climate types
The group falls into the tropical rainforest class, though a more useful description is a tropical maritime climate with a wetter and a drier period rather than a true dry season. Two wind regimes alternate: the north-west monsoon of December to February brings warmth and more rain, while the south-east trades from May to September bring drier, cooler, breezier weather. Higher ground on Mahé filters out more cloud, making the interior mountains the wet part of the islands.
Temperatures
The sea stabilises temperatures remarkably. Victoria on Mahé averages about 26 °C in most months, around 25 °C in January and February and a little warmer in April and May. Coastal highs are usually 29 °C to 31 °C and nights stay in the low 20s °C; on the high ground of Mahé the temperature falls a few degrees, and cloud may sit in from mid-morning.
Rainfall
Totals are high but well distributed. Mahé receives roughly 2,200 mm to 2,500 mm a year, and parts of the interior and the steep south-east slopes of Morne Seychellois are considerably wetter. The wettest months are usually December to February under the north-west monsoon, and the driest and clearest September and October under the south-east trades. Rain comes in heavy bursts, and can drop a month's fall in a day.
When to go
March to May and September to October tend to give the best balance of warm sea and moderate humidity. The dry, breezy trade season from May to September is ideal for diving and snorkelling, though the south coast swell can close some beaches. Cyclone landfalls here are rare, but the swells they raise occasionally affect the outer islands.