Sao Tome, Sao Tome and Principe Weather
Sao Tome hourly forecast: next 24 hours
Today's high of 74°F (23°C) is about 6°F (3°C) below the typical August high of 80°F (27°C).
Current conditions in detail
Sao Tome weather tomorrow (Friday, August 14)
Tomorrow in Sao Tome looks cloudy, with a high of 74° and an overnight low of 72°. Precipitation chance is modest at 31%. Winds top out near 9 mph, and the UV index reaches 5 (moderate).
Sao Tome 14-day forecast
About the weather in Sao Tome
Sao Tome has a tropical wet-and-dry climate, marked by year-round warmth split between a rainy season and a pronounced dry season. Average daytime highs range from about 80°F (27°C) in August to around 85°F (29°C) in March, and the city records roughly 272 days of measurable precipitation a year.
Sao Tome weather: quick facts
- Hottest month: March - highs near 85°F (29°C)
- Coldest month: August - highs near 80°F (27°C)
- Record high: 90°F (32°C) · Record low: 68°F (20°C) (2015–2024)
- Wettest month: October (27 rainy days) · Sunniest: June (9.6 h sun/day)
- Climate type: tropical wet-and-dry - year-round warmth split between a rainy season and a pronounced dry season
Temperatures through the year
The warmest stretch of the year centers on March. Highs average 85°F (29°C) and overnight lows stay near 78°F (26°C). The coolest month is August, with typical highs of 80°F (27°C) and lows around 74°F (23°C). Based on 2015–2024 weather data, temperatures have reached as high as 90°F (32°C) and dropped as low as 68°F (20°C).
Rain, sun and snow
October is usually the wettest month. It brings about 15.6 inches (396 mm) of rain over 27 days, while July is the driest. June brings the most sunshine, averaging 9.6 hours of sun a day.
Season by season
March through May
March through May in Sao Tome brings hot afternoons, with daytime highs averaging 84°F (29°C) and nights around 78°F (25°C); expect showers on roughly 71 days across the season. With the humidity factored in, afternoons often feel hotter than the thermometer reads - run the numbers through the humidity and dew point converter to see why.
June through August
June through August in Sao Tome brings hot afternoons, with daytime highs averaging 81°F (27°C) and nights around 74°F (24°C); expect showers on roughly 46 days across the season.
September through November
September through November in Sao Tome is hot, with daytime highs averaging 81°F (27°C) and nights around 76°F (24°C); expect showers on roughly 77 days across the season.
December through February
December through February in Sao Tome is hot, with daytime highs averaging 83°F (28°C) and nights around 77°F (25°C); expect showers on roughly 78 days across the season.
Average temperatures in Sao Tome by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 83° | 77° | 26 | 9.0 in | 9.4 h/day | 87% |
| February | 84° | 78° | 24 | 8.2 in | 9.4 h/day | 86% |
| March | 85° | 78° | 24 | 9.7 in | 8.6 h/day | 86% |
| April | 85° | 78° | 24 | 9.1 in | 8.8 h/day | 86% |
| May | 83° | 78° | 23 | 8.8 in | 8.6 h/day | 86% |
| June | 82° | 75° | 13 | 2.9 in | 9.6 h/day | 84% |
| July | 81° | 74° | 14 | 2.3 in | 9.2 h/day | 83% |
| August | 80° | 74° | 19 | 4.8 in | 8.5 h/day | 84% |
| September | 81° | 75° | 24 | 9.2 in | 8.4 h/day | 86% |
| October | 81° | 76° | 27 | 15.6 in | 8.3 h/day | 88% |
| November | 82° | 76° | 26 | 13.3 in | 8.6 h/day | 88% |
| December | 82° | 77° | 28 | 11.8 in | 8.8 h/day | 88% |