São Tomé weather in December
December in São Tomé: hot, soaked, with clean air — a great time to visit.
#8 of 12 months in São Tomé · #207 of 604 destinations to visit in December · comfort 77/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
São Tomé climate normals — December
| Daytime high | 28°C / 82°F | 🥵 hot |
|---|---|---|
| Nighttime low | 26°C / 78°F | |
| Feels like (high) | 33°C / 91°F | |
| Rainfall | 164 mm / 6.5 in | ⛈ soaked |
| Rainy days | 26 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 9.6 h/day | |
| Daylight | 12.1 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 34 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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São Tomé in December — FAQ
- Is December a good time to visit São Tomé?
- December in São Tomé: hot, soaked, with clean air — a great time to visit. It ranks #8 of 12 months for São Tomé on SeasonMap's comfort score (77/100).
- What is the weather like in São Tomé in December?
- In December, São Tomé averages a daily high of 27.8°C and a low of 25.8°C, with about 164.1 mm of rain over roughly 26.2 rainy days.
- What is the air quality in São Tomé in December?
- São Tomé has a mean US Air Quality Index of about 34 in December.