Plan your stay with our seasonal Eco Calendar

Year Round

Weather Patterns, Activities, Bird & Animal Life

Welcome to Cousine Island's Eco-Calendar, your guide to the rich biodiversity and seasonal wonders of this pristine paradise. Discover the unique flora and fauna events that define each month, from the nesting of turtles to the arrival of rare migratory birds.

Our Eco-Calendar highlights the island's conservation milestones, wildlife activities, and eco-friendly initiatives, allowing you to plan your visit during peak natural spectacles. Immerse yourself in the rhythms of nature on Cousine Island and experience the magic of sustainable tourism in Seychelles.

This information is provided as a guidance tool and does not guarantee any of the weather or breeding conditions, as these may vary according to ecological & climate changes.

  • Temperature
    Min: 24 ̊C
    Max: 30 ̊C

    Wind
    Northwest
    Monsoon Winds

    Breeding
    Hawksbill turtles nesting and hatchlings emerging.Fairy tern and white-tailed tropicbird breeding.

    Recommendation
    Very high chance of seeing nesting turtles and hatchlings. Diving and snorkeling quality dependent on weather.

    Sea/weather
    Lively sea, wet and humid weather

    Average Rainfall
    260mm

    Underwater visibility
    Good

  • Temperature
    Min: 25 ̊C
    Max: 31 ̊C

    Wind
    Northwest
    Monsoon Winds

    Breeding
    Hawksbill hatchlings emerging.Fairy tern and White-tailed Tropicbird breeding.

    Recommendation
    Ideal for all water activities incl. diving/snorkelling.
    High chance of seeing turtle hatchlings.

    Sea/weather
    Calm to lively sea, wet and humid weather

    Average Rainfall
    170mm

    Underwater visibility
    Good

  • Temperature
    Min: 25 ̊C
    Max: 31 ̊C

    Wind
    Northwest
    Monsoon Winds

    Breeding
    Hawksbill hatchlings emerging.Fairy tern and White-tailed Tropicbird breeding.

    Recommendation
    Ideal for all water activities incl. diving/snorkelling.
    High chance of seeing turtle hatchlings.

    Sea/weather
    Calm sea, less rain and warmer weather

    Average Rainfall
    150mm

    Underwater visibility
    Very clear

  • Temperature
    Min: 25 ̊C
    Max: 33 ̊C

    Wind
    Change in the winds

    Breeding
    Hawksbill hatchlings emerging. Fairy tern and White-tailed Tropicbird breeding.

    Recommendation
    Ideal for all water activities incl. diving/snorkeling.
    Small chance of seeing the last of the season’s turtle hatchlings.

    Sea/weather
    Calm sea, less rain and warmer weather

    Average Rainfall
    90mm

    Underwater visibility
    Very clear

  • Temperature
    Min: 26 ̊C
    Max: 32 ̊C

    Wind
    South East Trade winds

    Breeding
    Noddies, Sooty Terns, Fairy terns and White-tailed Tropicbirds breeding.

    Recommendation
    Diving and snorkeling quality dependent on weather.

    Sea/weather
    Calm to lively sea, slightly cooler weather with lots of sun

    Average Rainfall
    90mm

    Underwater visibility
    Medium

  • Temperature
    Min: 25 ̊C
    Max: 29 ̊C

    Wind
    South East Trade winds

    Breeding
    Noddies, Sooty Terns, Fairy terns and White-tailed Tropicbirds breeding.

    Recommendation
    Ideal for bird watching. Diving and snorkeling quality dependent on weather.

    Sea/weather
    Lively sea, cool and windy, dry

    Average Rainfall
    8    0mm

    Underwater visibility
    Medium

  • Temperature
    Min: 25 ̊C
    Max: 28 ̊C

    Wind
    South East Trade winds

    Breeding
    Noddies, Sooty Terns, Fairy terns and White-tailed Tropicbirds breeding.

    Recommendation
    Ideal for bird watching. Diving and snorkeling quality dependent on weather.

    Sea/weather
    Lively sea, still cool and windy with a little precipitation

    Average Rainfall
    30mm

    Underwater visibility
    Medium to poor

  • Temperature
    Min: 25 ̊C
    Max: 28 ̊C

    Wind
    South East Trade winds

    Breeding
    Noddies, Sooty Terns, Fairy terns and White-tailed Tropicbirds breeding.

    Recommendation
    Ideal for bird watching. Diving and snorkeling quality dependent on weather and clarity of water.

    Sea/weather
    Lively sea, still cool with slightly more precipitation

    Average Rainfall
    60mm

    Underwater visibility
    Medium to poor

  • Temperature
    Min: 25 ̊C
    Max: 29 ̊C

    Wind
    South East Trade winds

    Breeding
    Hawksbill turtles begin nesting.
    Noddies, Sooty Terns, Fairy terns and White-tailed Tropicbirds breeding.

    Recommendation
    Possibility of encountering a nesting Hawksbill turtle. Diving and snorkeling quality dependent on weather and clarity of water.

    Sea/weather
    Lively sea, weather getting slightly warmer and wetter

    Average Rainfall
    120mm

    Underwater visibility
    Medium

  • Temperature
    Min: 25 ̊C
    Max: 30 ̊C

    Wind
    South East Trade winds

    Breeding
    Hawksbill turtles nesting.
    Fairy terns and White-tailed Tropicbirds breeding.

    Recommendation
    Possibility of encountering a nesting Hawksbill turtle. Good for diving and snorkeling.

    Sea/weather
    Calm to lively sea with the wind starting to ease off

    Average Rainfall
    120mm

    Underwater visibility
    Good

  • Temperature
    Min: 25 ̊C
    Max: 31 ̊C

    Wind
    Change in winds

    Breeding
    Hawksbill turtles nesting.
    Fairy terns and White-tailed Tropicbirds breeding.

    Recommendation
    Very high chance of seeing nesting Hawksbill turtles.Ideal for all water activities incl. diving/snorkeling.

    Sea/weather
    Calm sea, getting warmer and wetter as the rains set in

    Average Rainfall
    130mm

    Underwater visibility
    Very clear

  • Temperature
    Min: 25 ̊C
    Max: 30 ̊C

    Wind
    Northwest
    Monsoon winds

    Breeding
    Hawksbill turtles nesting and hatchlings begin emerging.
    Fairy tern and White-tailed Tropicbird breeding.

    Recommendation
    Very high chance of seeing nesting Hawksbill turtles and possibly hatchlings.
    Diving and snorkeling quality dependent on weather.

    Sea/weather
    Calm sea, generally wet and humid but not usually raining all day

    Average Rainfall
    250mm

    Underwater visibility
    Good