São Tomé Weather & Climate

São Tomé and Príncipe

São Tomé sees feels-like daytime highs peak around 34.4°C in March and nighttime lows bottom out near 28.4°C in August. April is the wettest month (~130 mm), while August is the driest (~1 mm). For sunshine, July leads with about 35% clear skies.

Best time to visit São Tomé

Based on mild feels-like temperatures and low rain chances, the most comfortable months are August, July, and September — expect around 28.429.6°C with roughly 2% chance of rain on a given day in August.

São Tomé climate by month

MonthLow / High °CRain %RainfallClear skiesWind
January31.6° / 32.8°40%72 mm20%12.8 kph
February32.9° / 34.1°39%69 mm18%13.3 kph
March33.2° / 34.4°58%122 mm13%13.7 kph
April33° / 34.1°62%130 mm12%13.7 kph
May31.8° / 32.9°45%87 mm20%14.9 kph
June30° / 31.2°15%26 mm32%16.7 kph
July28.5° / 29.6°4%5 mm35%16.9 kph
August28.4° / 29.6°2%1 mm30%16.7 kph
September29.9° / 31°8%9 mm30%16.5 kph
October31.2° / 31.3°33%52 mm26%15.9 kph
November31.8° / 32.8°47%82 mm25%14.6 kph
December31.7° / 32.9°43%77 mm22%13.1 kph

Feels-like temperatures from long-term historical data; ☀ marks the most comfortable months (mild temperatures, low rain).

Want to catch São Tomé at its best?

Save your perfect conditions and get an email when a forecast matches.

Set up a free alert