Porto Alegre, Rio Grande do Sul, Brazil climate
Average temperatures, precipitation and all-time records for Porto Alegre, Rio Grande do Sul, Brazil, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is January, averaging a high of 30°C, and its coldest is July, with an average low of 10°C.
Porto Alegre is the capital and largest city of the Brazilian state of Rio Grande do Sul. Its population of roughly 1.4 million inhabitants (2022) makes it the 11th-most populous city in the country and the centre of Brazil's fifth-largest metropolitan area, with 4.1 million inhabitants (2022). via Wikipedia
Porto Alegre average temperatures by month
Typical daily high and low, and average precipitation, for each month in Porto Alegre, Rio Grande do Sul, Brazil, based on 1980–2026 records. The wettest month is January (5 mm on an average day).
| Month | Avg high | Avg low | Avg precip |
|---|---|---|---|
| January | 30°C | 21°C | 5 mm |
| February | 30°C | 21°C | 5 mm |
| March | 29°C | 20°C | 3 mm |
| April | 26°C | 17°C | 3 mm |
| May | 22°C | 14°C | 3 mm |
| June | 19°C | 11°C | 5 mm |
| July | 19°C | 10°C | 5 mm |
| August | 21°C | 12°C | 5 mm |
| September | 22°C | 13°C | 5 mm |
| October | 24°C | 15°C | 5 mm |
| November | 27°C | 17°C | 5 mm |
| December | 29°C | 19°C | 5 mm |
Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.
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Record extremes
- Hottest day on record: 40°C on 1985-11-16
- Coldest day on record: -1°C on 1991-07-14
Percentiles compare each day to Porto Alegre, Rio Grande do Sul, Brazil's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →