São Tomé weather in January
January in São Tomé: sweltering, rainy, with clean air — an excellent time to visit.
#5 of 12 months in São Tomé · #156 of 604 destinations to visit in January · comfort 81/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
São Tomé climate normals — January
| Daytime high | 28°C / 83°F | 🔥 sweltering |
|---|---|---|
| Nighttime low | 26°C / 79°F | |
| Feels like (high) | 34°C / 93°F | |
| Rainfall | 125 mm / 4.9 in | 🌧 rainy |
| Rainy days | 24 days | |
| Humidity | 82% | 💦 very humid |
| Dew point | 24°C / 74°F | |
| Sunshine | 9.9 h/day | |
| Daylight | 12.1 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 45 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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São Tomé in January — FAQ
- Is January a good time to visit São Tomé?
- January in São Tomé: sweltering, rainy, with clean air — an excellent time to visit. It ranks #5 of 12 months for São Tomé on SeasonMap's comfort score (81/100).
- What is the weather like in São Tomé in January?
- In January, São Tomé averages a daily high of 28.1°C and a low of 26.1°C, with about 124.7 mm of rain over roughly 23.6 rainy days.
- What is the air quality in São Tomé in January?
- São Tomé has a mean US Air Quality Index of about 45 in January.