The Quick Answer / The Practical Takeaway:
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Best Overall for First-Timers: April, May, October, and November. These "transition months" offer calm, clear waters and little wind.
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Best for Budget Travelers: January to March. It is the rainy season, but hotel rates drop and the rain usually comes in short bursts.
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Best for Diving and Snorkeling: April and November. The ocean is like glass, providing incredible underwater visibility up to 30 meters.
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Best for Avoiding Seaweed: Watch the winds. Stay on the west and north coasts from May to September to avoid seaweed build-up caused by the southeast trade winds.
Seychelles by Season: What You Really Get
Seychelles sits just south of the equator, meaning it stays warm year-round with temperatures rarely dropping below 24C (75F). Instead of winter and summer, the climate is dictated by two main trade winds: the wet northwest winds and the dry southeast winds. The transitional periods between these winds provide the most idyllic beach conditions.
Season (Months)Typical ConditionsCrowdsCostsBest ForNW Monsoon (Dec - Mar)Hot, highly humid, heavy but short rain showers.High (Dec/Jan), then LowHigh (Holidays), then LowTurtle hatching, lush green jungles, budget deals (Feb-Mar).Transition 1 (Apr - May)Very hot, calm winds, glassy ocean, excellent visibility.HighHighScuba diving, snorkeling, calm ferry crossings.SE Monsoon (Jun - Sep)Cooler, drier, strong breezes, choppy seas, seaweed on south coasts.Highest (July/Aug)HighestWindsurfing, sailing, hiking, avoiding humidity.Transition 2 (Oct - Nov)Warming up, winds dropping, calm seas return, occasional rain.MediumMediumTurtle nesting, diving, bird watching, overall balance.
Regional Differences (Microclimates & Geography)
Because Seychelles is scattered across a vast expanse of the Indian Ocean, the weather can vary significantly from one island to another. If it is raining on one side of a mountain, the other side might be bathed in brilliant sunshine.
Mahé Island
Mahé is the largest island and features a mountainous interior that creates its own microclimates. The northwest trade winds (December to March) bring rain to the northern and western coasts. Conversely, the southeast trade winds (May to September) bring choppy waters and seaweed to the southern and eastern beaches, making the west coast a better choice during the summer months. Be sure to review the Seychelles Airport Customs Rules before landing at the international airport here.
Praslin & La Digue
These slightly flatter islands generally experience less rainfall than mountainous Mahé. However, they are highly susceptible to the seaweed brought in by the southeast trade winds from June to September. If you are visiting during this time, book accommodations on the northern or western sides of these islands. The famous Anse Source d'Argent on La Digue is best enjoyed in April or October when the tides are favorable and the wind is calm.
The Outer Islands
Islands like Bird Island and Denis Island are flat coral atolls, meaning they lack the mountains that catch rain clouds. They are generally drier than the inner granitic islands. If you are heading to these remote locations, the transitional months of April and November are critical; the calm seas make the small plane or boat transfers much more comfortable.
Month-by-Month Cheat Sheet
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January: Hot, humid, and very wet. It is the peak of the rainy season, but rain usually falls in heavy, short tropical downpours followed by sunshine.
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February: Still quite wet and humid, but crowds thin out significantly. A great time to witness baby hawksbill turtles hatching and making their way to the sea.
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March: The northwest monsoon begins to weaken, leading to less rain and slightly calmer seas. It remains very hot, and hotel prices are often quite competitive.
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April: The absolute best month. The winds stop, the ocean turns to glass, and underwater visibility is flawless. Expect intense heat and zero breeze.
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May: Another fantastic transition month with perfect beach weather. The southeast winds just begin to pick up, providing a tiny, refreshing breeze without ruining the calm seas.
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June: The southeast trade winds arrive in full force, cooling the air down to a comfortable 27C (80F). The ocean becomes choppy, and surfers start hitting the waves.
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July: The driest and coolest month of the year. It is very busy with European school holidays, but the strong winds mean you must avoid the southern beaches due to seaweed.
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August: Similar to July, expect dry, breezy, and comfortable weather. This is peak season, so book well in advance and be prepared to pay premium rates.
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September: The strong winds continue, but the humidity starts to creep back up. It is a fantastic time for sailing and windsurfing.
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October: The second best month. The winds die down again, returning the ocean to a calm, clear state. This marks the beginning of the turtle nesting season.
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November: The calm before the rainy season begins. The water is exceptionally clear for diving, and the lush vegetation is ready for the upcoming rains.
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December: The start of the wet northwest monsoon. It is busy and expensive due to the festive holiday season, despite the increased chance of heavy rain.
Best Time to Visit by Traveler Type
For Beaches & Swimming
Aim for April, May, October, or November. During these transition months, the ocean is calm, warm, and free of the strong currents that plague the monsoon seasons. You will not have to worry about seaweed ruining the pristine white sand on the southern coasts. Make sure you understand the local regulations before hitting the beach by reading up on Seychelles Tourist Bans & Laws.
For Scuba Diving & Snorkeling
April and November are the undisputed champions for underwater exploration. The lack of wind means the ocean surface is perfectly flat, allowing sediment to settle. This creates crystal-clear water with visibility extending up to 30 meters, perfect for spotting whale sharks, manta rays, and vibrant coral reefs.
For Budget Travelers
Look at February and March, or late May and early June. You will avoid the massive price spikes of the December holidays and the July/August European summer rush. While February and March carry a higher risk of rain, the showers are usually brief and the savings on luxury resorts can be substantial.
For Wildlife & Nature
If you want to see hawksbill turtles laying their eggs, visit between October and December. To see the tiny hatchlings scrambling to the ocean, time your trip for January to March. For bird watchers, April and May coincide with breeding seasons, making islands like Cousin and Bird Island incredibly active.
Festivals & Special Dates to Plan Around (2026)
Independence (National) Day – June 29, 2026
This is a massive public holiday marked by flag-waving, lively parades, singing, and dancing across the islands. The evening is capped off with impressive fireworks displays, particularly in the capital, Victoria. Expect local transport to be busy and some smaller shops to close.
Festival of the Assumption – August 15, 2026
This religious holiday is the biggest event of the year on La Digue island. Pilgrims and tourists flock to the island for an open-air mass, followed by a massive traditional festival with Creole music, dancing, and incredible local food. Accommodation on La Digue sells out months in advance for this weekend.
Festival Kreol – Late October
Held annually on Mahé, this week-long festival is a vibrant celebration of Seychellois Creole heritage, culture, and traditions. The streets come alive with colorful art exhibitions, traditional dance performances (like the Moutya), and massive food stalls selling authentic Creole cuisine. It is a fantastic cultural experience, but hotels near Victoria will book up quickly.
A Quick Note on Staying Connected
Having immediate internet access as soon as you land in Seychelles is an absolute game-changer. You will need it to coordinate ferry schedules to Praslin or La Digue, load Google Maps for your rental car, or book last-minute snorkeling tours. Relying solely on resort Wi-Fi will leave you disconnected while exploring the most beautiful, remote beaches.
