What's on in São Tomé, São Tomé and Príncipe through the year

São Tomé, São Tomé and Príncipe has 5 curated events through the year — 2 natural spectacles, 1 holiday and 2 seasons. The ones to plan around: Gravana, the dry season (June) and Humpback whales (July).

Updated September 2026 · every event curated and sourced · dates for 2026 where they are announced, the usual window where they are not

Best time to visit São Tomé: weather, crowds and notes →

São Tomé events and crowds by month

MonthWhat startsCrowds
JanuaryShoulder season
FebruaryShoulder season
MarchShoulder season
AprilShoulder season
MayShoulder season
JuneGravana, the dry seasonBusy
JulyIndependence Day, Humpback whalesBusy
AugustBusy
SeptemberShoulder season
OctoberQuiet
NovemberSea turtle nestingQuiet
DecemberGravanito, the little dry spellQuiet

Shoulder season — school holidays in 5 of the markets that fill it, an ordinary month

Nothing new starts in January.

Still on: Sea turtle nesting (1 Nov – 28 Feb (usually)), Gravanito, the little dry spell (15 Dec – 10 Feb (usually))

Shoulder season — school holidays in 2 of the markets that fill it, an ordinary month

Nothing new starts in February.

Still on: Sea turtle nesting (1 Nov – 28 Feb (usually)), Gravanito, the little dry spell (15 Dec – 10 Feb (usually))

Shoulder season — school holidays in 4 of the markets that fill it, an ordinary month

Nothing new starts in March.

Shoulder season — school holidays in 4 of the markets that fill it, an ordinary month

Nothing new starts in April.

Shoulder season — school holidays in 3 of the markets that fill it, an ordinary month

Nothing new starts in May.

Busy — school holidays in 3 of the markets that fill it, one of its best months for weather

  • Season

    Gravana, the dry season

    1 Jun – 15 Sep · usually

    The cool, dry, often overcast months when the roads to the south of the island are reliable and the humidity finally eases. Mornings can be grey for a week; that is the gravana rather than bad luck.

Busy — Independence Day, school holidays in 5 of the markets that fill it

  • Holiday

    Independence Day

    12 JulNational holidayClosures

    The 12 July holiday marks 1975. Government offices, banks and most shops in the capital close, and the day is marked with music and football rather than a parade. Source ↗

  • Nature

    Humpback whales

    15 Jul – 15 Oct · usuallyWhale season

    Humpbacks come into the Gulf of Guinea to calve during the southern winter and are seen off the island's east and south coasts. Boats run when the sea allows, which in the gravana it usually does.

Still on: Gravana, the dry season (1 Jun – 15 Sep (usually))

Busy — school holidays in 4 of the markets that fill it, one of its best months for weather

Nothing new starts in August.

Still on: Gravana, the dry season (1 Jun – 15 Sep (usually)), Humpback whales (15 Jul – 15 Oct (usually))

Shoulder season — school holidays in 2 of the markets that fill it, an ordinary month

Nothing new starts in September.

Still on: Gravana, the dry season (1 Jun – 15 Sep (usually)), Humpback whales (15 Jul – 15 Oct (usually))

Quiet — school holidays in 4 of the markets that fill it, one of its worst months for weather

Nothing new starts in October.

Still on: Humpback whales (15 Jul – 15 Oct (usually))

Quiet — school holidays in 2 of the markets that fill it, one of its worst months for weather

  • Nature

    Sea turtle nesting

    1 Nov – 28 Feb · usually

    Green, hawksbill and olive ridley turtles nest on the beaches around the island through the wet months, monitored nightly by the Programa Tato patrols. Watching is guided only and torches are kept off the sand. Source ↗

Quiet — school holidays in 5 of the markets that fill it, one of its worst months for weather

  • Season

    Gravanito, the little dry spell

    15 Dec – 10 Feb · usuallyDry season

    A short break in the middle of the wet season with clearer skies and calmer sea. It is unreliable in both timing and length, but when it lands it is the best diving and boat weather of the first half of the year.

Still on: Sea turtle nesting (1 Nov – 28 Feb (usually))

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