Porto Alegre weather in January
January in Porto Alegre: hot, rainy, with clean air — a great time to visit.
#12 of 12 months in Porto Alegre · #382 of 897 destinations to visit in January · comfort 76/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Porto Alegre in January
No notes yet. Open Porto Alegre on the map to add the first one.
Porto Alegre climate normals — January
| Daytime high | 31°C / 88°F | 🥵 hot |
|---|---|---|
| Nighttime low | 22°C / 71°F | |
| Rainfall | 96 mm / 3.8 in | 🌧 rainy |
| Rainy days | 13 days | |
| Humidity | 69% | 💧 humid |
| Dew point | 20°C / 67°F | |
| Sunshine | 11.2 h/day | |
| Daylight | 13.8 h | |
| Wind | 19 km/h / 12 mph | |
| Air quality (US AQI) | 41 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Porto Alegre?
Loading map…
Porto Alegre in January — FAQ
- Is January a good time to visit Porto Alegre?
- January in Porto Alegre: hot, rainy, with clean air — a great time to visit. It ranks #12 of 12 months for Porto Alegre on SeasonMap's comfort score (76/100).
- What is the weather like in Porto Alegre in January?
- In January, Porto Alegre averages a daily high of 31.1°C and a low of 21.6°C, with about 96 mm of rain over roughly 13.2 rainy days.
- What is the air quality in Porto Alegre in January?
- Porto Alegre has a mean US Air Quality Index of about 41 in January.