São Tomé weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Excellent
Best time to visit: June – September
What is the weather like in São Tomé in August?
In August, São Tomé is warm: daytime highs average 25 °C, and even at night it stays warm at around 23 °C. The sea averages 25.7 °C – pleasant for swimming. Expect around 6 hours of sunshine a day. Rain is rare: about 3 days bring 14 mm in total. The air is often humid and muggy. All in all, August is an excellent month for a holiday in São Tomé.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 90 | 90 | 80 |
| Day | 25° | 25° | 25° |
| Night | 23° | 23° | 24° |
| Sea | 26° | 26° | 26° |
| Sun | 6 h | 6 h | 6 h |
| Rain days | 2 | 3 | 8 |
More details for August
- Daylight
- 12 h 8 min05:34 – 17:42
- UV index
- 14 · extremeclear sky, noon (estimate)All months
- Muggy days
- 31 daysdew point 18 °C or moreAll months
- Wind
- 24 km/haverage daily peakAll months
- Cloud cover
- 70 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+0Africa/Sao_Tome
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %48 %
- Few rainy daysweight 30 %100 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Swimwear
- Sunscreen
- Sunglasses & sun hat
- Insect repellent
São Tomé in August: quick answers
Is São Tomé hot in August?
Warm rather than hot: in August, daytime highs in São Tomé average 25 °C and nights cool to about 23 °C.
Can you swim in São Tomé in August?
Yes. In August the sea averages 25.7 °C – pleasant for swimming.
Does it rain much in São Tomé in August?
Rain is rare: about 3 days bring 14 mm in total.
São Tomé month by month
The whole year in São ToméAll destinations: São Tomé and PríncipeWhere to go in AugustSea temperature in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences