Victoria month by month — at a glance
Hover each month for the summary. Click to pin it.
01 Two winds, not two seasons
Key moments at a glance
8 hours of sun, sea at 30 °C and light wind: the best month for getting in the water.
90 mm, the year's lowest figure, with 28.7 °C and less humid air.
180 mm of rain, but the wind eases and the sea goes flat again.
The year's rainfall peak, with heavy skies and 5 hours of sun a day.
The usual way of reading a climate — dry season and rainy season — does not work here. In Victoria it rains all year, and it rains in short, hard bursts that clear as fast as they arrive. A month of 200 millimetres does not mean a grey month: it means half an hour of water a day and sun for the rest.
What does mark the calendar is the wind regime. From May to September the south-east trades dominate: less rain, drier air, slightly lower temperatures and a lively sea. From December to March the north-west monsoon takes over: more heat, more humidity, more water and generally light wind. April and October are the hinge months, when neither is in charge.
02 The coast that goes quiet
In a small archipelago, changing bay is the same as changing season.
With the south-east trades, between May and September, the coasts facing south-east take the swell and the seaweed: it piles up on the exposed beaches and the water loses its clarity. At the same time the north and north-west of Mahé sit in the lee, with a flat sea and clean sand.
From October to April the reverse happens. The wind swings to the north-west and it is the northern beaches — Beau Vallon first among them — that take the waves, the currents and the sand loss, while the south-east coast falls quiet. It is not a theory: at Beau Vallon the cumulative effect is visible on the shore itself, with undercut trees and structures left exposed.
The practical consequence is simple: on Mahé there is nearly always a good coast, and from Victoria you reach either of them in under an hour by bus. It is worth not booking blind and choosing the side according to the month.
03 The water, month by month
Sea temperature moves between 26.5 degrees in July and August and 30 in April. In other words, you can swim any day of the year; what changes is what you see underneath. In the trade-wind months the water carries sediment and visibility drops; in April and October, with the sea still, is when diving and snorkelling are at their best.
The wind has its followers. In July and August the trades blow with gusts of 50 to 60 kilometres an hour, and what spoils the swimming in exposed bays is exactly what sailors and kitesurfers are after. They are also the months with the least heavy air, the most comfortable for walking in the island's interior.
04 Which month to pick
If the trip revolves around the water — diving, snorkelling, crossing to Praslin by ferry without drama — aim for April or October. They are the transition months: flat sea, high visibility, the water at its warmest and the wind at its lowest. It rains, yes, but not for long.
If you want the driest air and the brightest days, take June, July or August. July is the least rainy month of the year and August the windiest: expect calm beaches in the north, some swell in the south-east and surprisingly cool nights for a place four degrees off the equator.
December and January are the months to dodge if you have a choice. Not for the heat, which is the same as ever, but for the sheer volume of water: 305 and 405 millimetres, with covered skies for much of the day. One reassurance: the archipelago lies outside the cyclone belt — only the southern outer islands come near it — so the risk of a severe tropical storm is very low.
