São Paulo weather in December
December in São Paulo: hot, rainy, with very humid — a great time to visit.
#9 of 12 months in São Paulo · #255 of 604 destinations to visit in December · comfort 73/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
São Paulo climate normals — December
| Daytime high | 26°C / 79°F | 🥵 hot |
|---|---|---|
| Nighttime low | 18°C / 65°F | |
| Feels like (high) | 29°C / 84°F | |
| Rainfall | 139 mm / 5.5 in | 🌧 rainy |
| Rainy days | 20 days | |
| Humidity | 81% | 💦 very humid |
| Dew point | 18°C / 65°F | |
| Sunshine | 10.1 h/day | |
| Daylight | 13.6 h | |
| Wind | 17 km/h / 11 mph | |
| Air quality (US AQI) | 74 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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São Paulo in December — FAQ
- Is December a good time to visit São Paulo?
- December in São Paulo: hot, rainy, with very humid — a great time to visit. It ranks #9 of 12 months for São Paulo on SeasonMap's comfort score (73/100).
- What is the weather like in São Paulo in December?
- In December, São Paulo averages a daily high of 26.3°C and a low of 18.4°C, with about 139 mm of rain over roughly 19.8 rainy days.
- What is the air quality in São Paulo in December?
- São Paulo has a mean US Air Quality Index of about 74 in December.