Seychelles is often marketed as a year-round destination, and while that is technically true (it never gets cold), picking the wrong month can significantly impact your experience. You might dream of crystal-clear waters but arrive during the trade winds when the sea is choppy and beaches are covered in seaweed. I have broken down exactly when you should go based on what you want to do, whether it is diving, sunbathing, or saving money.

Understanding the Two Main Seasons

The climate in Seychelles is dictated by trade winds. Unlike other tropical destinations with a simple wet and dry season, here you need to choose between the Northwest Monsoon and the Southeast Monsoon. Knowing the difference is crucial for planning your accommodation location.

Best time to visit seychelles in year

Northwest Monsoon (December to March)

During these months, the wind blows from the northwest. This is generally the warmer and wetter season. Vegetation is lush and green, but you should expect sudden, heavy tropical showers, usually in the late afternoon or overnight. The sea is generally calmer during this period, which is great for swimming, but the humidity can be intense.

Southeast Monsoon (May to September)

The wind shifts and blows from the southeast. This brings cooler, drier weather and a constant breeze, which is very refreshing. However, the sea can get quite rough, making boat crossings between Mahé and Praslin a bit bumpy for those prone to seasickness. The biggest issue during this time is the seaweed, which washes up onto the southeast-facing beaches.

The Transition Months: The Golden Window

If you are looking for the absolute best conditions, aim for the transition periods between these two monsoons. April and May as well as October and November are widely considered the peak times to visit. During these months, the wind dies down, leaving the ocean incredibly calm with visibility often exceeding 30 meters. It is the perfect time for diving, snorkeling, and boat excursions. The heat is manageable, and rainfall is less frequent than in the height of the rainy season.

The Seaweed Problem: Where Not to Stay

This is the most critical insider tip that many travel agents overlook. Seasonal trade winds deposit tons of seagrass and seaweed onto certain beaches, turning postcard-perfect white sands into brown, murky spots.

If you visit from May to September (Southeast Monsoon), avoid staying on the south and east coasts of Praslin (like Grand Anse) and Mahé. The beaches here will likely be covered in seaweed. Instead, book your accommodation on the north and west coasts (like Beau Vallon on Mahé or Cote d’Or on Praslin), where the beaches remain pristine and sheltered.

Conversely, during the Northwest Monsoon (December to March), the north-west coasts can occasionally get some debris, but it is generally less severe than the south-east season.

Best Time for Specific Activities

Your ideal time depends heavily on your itinerary. Here is a quick breakdown to help you decide.

Diving and Snorkeling

The underwater visibility is at its peak during the transition months of April, May, October, and November. The water is calm, and you can spot whale sharks (especially in October and November) and manta rays. If you dive in July or August, the choppy seas can reduce visibility and make boat rides uncomfortable.

Surfing

Surfers should do the exact opposite of divers. The Southeast Monsoon (May to September) brings consistent swells, making it the prime time for surfing, especially on beaches like Grand Anse in La Digue or Intendance in Mahé.

Hiking and Nature Trails

If you plan to hike the Morne Seychellois or the Copolia Trail, the cooler and drier months of June to September are ideal. The humidity is lower, making the steep climbs much more comfortable. Just remember that the trails can still be slippery if there has been a morning shower.

Turtle Hatching

Seeing hawksbill turtles nesting or hatching is a magical experience. The nesting season runs from October to January, and the hatching season follows from December to March. Bird Island and Cousin Island are fantastic spots to witness this.

Budget Considerations: When are Flights and Hotels Cheapest?

Seychelles is never a budget destination, but you can save significantly by avoiding the peak windows. The most expensive times are generally December to January (Christmas and New Year) and July to August (European school holidays).

For better deals, look at January (after the 10th), February, May, and September. During these shoulder months, occupancy rates drop, and you are more likely to find promotions on luxury resorts and guesthouses. Flight prices also tend to dip slightly outside of the major holiday seasons.

Summary: My Final Recommendation

For a first-time visitor who wants the classic Seychelles experience, calm turquoise waters, sunny days, and swim-friendly beaches, I highly recommend booking your trip for April, May, or October. You get the best of everything with minimal risk of bad weather or rough seas. If your dates are fixed during the trade wind seasons, just be strategic about which side of the island you choose for your hotel, and you will still have an incredible trip.