São Tomé weather in May
May in São Tomé: hot, rainy, with clean air — a great time to visit.
#7 of 12 months in São Tomé · #384 of 604 destinations to visit in May · comfort 78/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
São Tomé climate normals — May
| Daytime high | 28°C / 83°F | 🥵 hot |
|---|---|---|
| Nighttime low | 27°C / 80°F | |
| Feels like (high) | 33°C / 91°F | |
| Rainfall | 118 mm / 4.6 in | 🌧 rainy |
| Rainy days | 17 days | |
| Humidity | 82% | 💦 very humid |
| Dew point | 24°C / 75°F | |
| Sunshine | 9.2 h/day | |
| Daylight | 12.1 h | |
| Wind | 21 km/h / 13 mph | |
| Air quality (US AQI) | 39 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is São Tomé?
Loading map…
São Tomé in May — FAQ
- Is May a good time to visit São Tomé?
- May in São Tomé: hot, rainy, with clean air — a great time to visit. It ranks #7 of 12 months for São Tomé on SeasonMap's comfort score (78/100).
- What is the weather like in São Tomé in May?
- In May, São Tomé averages a daily high of 28.1°C and a low of 26.6°C, with about 117.7 mm of rain over roughly 17.4 rainy days.
- What is the air quality in São Tomé in May?
- São Tomé has a mean US Air Quality Index of about 39 in May.