São Tomé weather in July

July in São Tomé: hot, dry, with muggy air — one of the best months to visit.

Updated September 2026 · climate normals from ERA5 reanalysis

São Tomé🇸🇹 São Tomé and Príncipe · Central Africa · Island92
  1. 81Jan
  2. 83Feb
  3. 77Mar
  4. 76Apr
  5. 79May
  6. 90Jun
  7. 92Jul
  8. 92Aug
  9. 89Sep
  10. 73Oct
  11. 68Nov
  12. 74Dec

#1 of 12 months in São Tomé · #172 of 1413 destinations to visit in July · comfort 92/100 (tier S)

Days
26°C
Nights
25°C
Wet days
1
Sun
10.3 h
Humidity
81%
Daylight
12 h
São Tomé, São Tomé and Príncipe
Photo: Helena Van Eykeren from Gent, Belgium · CC BY 2.0

Traveller notes on São Tomé in July

Forum posters name July, alongside August and January, as part of the islands' dry season, though posters are direct that conditions vary meaningfully by location even within Sao Tome itself - dry in the north, rain most of the day in the center, and a genuine 50/50 mix in the south. Posters describe the overall climate as equatorial and consistently warm and humid regardless of season, with even 'dry season' rain typically limited to an hour or so rather than an all-day event when it does happen. Posters describe skies as often cloudy generally, but flag Ilheu das Rolas specifically as a reliable spot for sunnier days. Posters generally rate July as a reasonable time to visit, provided visitors understand 'dry season' here is relative and location-dependent rather than a guarantee of sunshine everywhere on the islands.
Tripadvisor community · July · 1 month ago · Read more on Tripadvisor ↗

Other months in São Tomé

Forum posters describing December-into-January visits report notably dry, sunny stretches: one visitor saw only about a day's worth of rain across their whole trip, and another spanning two weeks of January reported no rain at all except one roughly hour-long shower early on. Posters consistently cite daytime temperatures around 30C as typical for this window. It is worth noting that the full 12-month climate record shows January is actually one of São Tomé and Príncipe's wetter months overall (around 24 rainy days), with the islands' genuine short dry season (locally the "gravana") falling June through September instead - these travelers' good fortune with dry conditions may reflect normal day-to-day variability within a wetter month rather than the seasonal norm. Posters generally rate January as warm and humid for São Tomé, with a real chance of a lucky dry stretch but no guarantee of one given the time of year.
Tripadvisor community · January · 1 month ago · Read more on Tripadvisor ↗

Add your own note from São Tomé's card on the map.

São Tomé climate normals — July

Daytime high26°C / 79°F🥵 hot
Nighttime low25°C / 76°F
Feels like (high)29°C / 84°F
Sea temperature26°C / 79°F😎 warm sea
Rainfall5 mm / 0.2 in☀️ dry
Rainy days1 days
Humidity81%💦 very humid
Dew point22°C / 71°F
Sunshine10.3 h/day
Daylight12.1 h
Wind25 km/h / 16 mph
Air quality (US AQI)51🙂 moderate

Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.

Crowds in São Tomé in July

How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.

BusyIndependence Day, school holidays in 5 of the markets that fill it(estimated)

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Peak crowdsBusyShoulder seasonQuiet

Best months for São Tomé's weather

Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).

Best weatherSão Tomé's weather peaks June–August, best around July.

July includes Humpback whales.

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Best weatherFair weatherToughest weather

What's on in São Tomé in July

Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.

  • 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.

  • 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.

What's on around the world in July →

Where is São Tomé?

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São Tomé in July — FAQ

Is July a good time to visit São Tomé?
July in São Tomé: hot, dry, with muggy air — one of the best months to visit. It ranks #1 of 12 months for São Tomé on SeasonMap's comfort score (92/100).
What is the weather like in São Tomé in July?
In July, São Tomé averages a daily high of 26.1°C and a low of 24.5°C, with about 5.4 mm of rain over roughly 1.4 rainy days.
What is the air quality in São Tomé in July?
São Tomé has a mean US Air Quality Index of about 51 in July.