When to Visit São Tomé
Climate guide & best times to travel
Best Time to Visit
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Year-Round Essentials
Dry Season (Jun-Sep)
Wet Season (Oct-Dec)
Wet Season (Jan-Feb)
Transition Season (Mar-May)
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Month-by-Month Guide
January
January sits in the wetter season, though you'll still get plenty of sunshine between showers. Temperatures are warm at 84°F (29°C) during the day, dropping to a comfortable 72°F (22°C) at night. It's a decent time for beach activities, just expect the occasional afternoon downpour.
February
February continues the rainy season pattern with warm, humid days reaching 85°F (29°C). The rainfall tends to be intense but short-lived, clearing up quickly. It's actually a lovely time for birdwatching as the forests are lush and active.
March
March typically sees some of the heaviest rainfall of the year, with frequent afternoon thunderstorms. Temperatures peak at 86°F (30°C), and the humidity can feel quite noticeable. That said, the island is incredibly green and the waterfalls are at their most impressive.
April
April remains quite wet, though the intensity of rainfall can vary considerably from year to year. Highs stay at 86°F (30°C) with warm nights. It's the kind of month where you'll want to embrace the rain rather than fight it—the chocolate plantations are particularly atmospheric during this period.
May
May marks the transition period as rainfall begins to decrease, though you'll still get regular showers. Temperatures ease slightly to 84°F (29°C), and there's a noticeable shift in the weather patterns. It's actually a nice shoulder season for visiting before the peak dry months.
June
June ushers in the dry season with noticeably less rainfall and slightly cooler temperatures at 82°F (28°C). The humidity remains present but feels more manageable. This is when beach conditions really improve, with calmer seas and more consistent sunshine.
July
July is one of the coolest and driest months, with highs around 81°F (27°C) and lows dipping to 68°F (20°C)—which actually feels quite pleasant in the evenings. It's peak season for good reason, with excellent conditions for pretty much any activity you're planning.
August
August continues July's pattern with the coolest temperatures of the year and minimal rainfall. The 81°F (27°C) highs and 68°F (20°C) lows make for comfortable exploring, and the sea visibility is typically at its best for snorkeling and diving.
September
September extends the dry season with temperatures warming slightly to 83°F (28°C). It's still an excellent month for visiting, with good weather and slightly fewer tourists than July-August. The landscapes start looking a bit drier, but conditions remain ideal for outdoor activities.
October
October marks the transition back to wetter conditions, though the rains build gradually. Temperatures hover at 83°F (28°C), and you'll notice the humidity increasing. It's a decent shoulder season month—you might catch some rain, but you'll also find better accommodation rates.
November
November sees rainfall increasing as the wet season establishes itself. Temperatures warm to 84°F (29°C), and the afternoon showers become more regular. The island starts greening up beautifully, and it's actually a lovely time for photography if you don't mind working around the weather.
December
December brings consistent rainfall while maintaining warm temperatures at 84°F (29°C). It's the festive season, so you'll find some cultural events happening despite the wet weather. The rain tends to be heaviest in the afternoons, leaving mornings often clear for activities.