Historical weather in Porto Alegre, Brazil
Porto Alegre weather history for 2023-2025, with daily temperatures, precipitation, monthly summaries, and records from Open-Meteo archive data.
Interactive graph
Explore Porto Alegre in the interactive graph
Open the full graph with Porto Alegre already loaded, then add more cities to compare.
Weather summary
Across 2023-2025, Porto Alegre averaged 25.1 C for daily highs and 16.1 C for daily lows across 1096 daily observations.
The warmest month was February 2025, with an average high of 32.7 C, while July 2025 had the lowest average low at 9.4 C.
The wettest month was September 2023, totaling 427.7 mm of precipitation.
The hottest day reached 38.4 C on February 25, 2025; the coldest night fell to 2.4 C on July 1, 2024.
Monthly summary table
| Year | Month | Avg low C | Avg high C | Rain and snow mm | Days |
|---|---|---|---|---|---|
| 2023 | January | 21.0 | 31.7 | 45.9 | 31 |
| 2023 | February | 19.8 | 30.4 | 67.2 | 28 |
| 2023 | March | 21.0 | 30.1 | 92.8 | 31 |
| 2023 | April | 16.1 | 25.2 | 24.7 | 30 |
| 2023 | May | 14.2 | 22.5 | 95.3 | 31 |
| 2023 | June | 11.9 | 20.7 | 184.6 | 30 |
| 2023 | July | 11.3 | 19.7 | 222.4 | 31 |
| 2023 | August | 11.2 | 21.3 | 125.8 | 31 |
| 2023 | September | 14.6 | 22.7 | 427.7 | 30 |
| 2023 | October | 14.9 | 23.1 | 169.9 | 31 |
| 2023 | November | 16.9 | 25.8 | 288.0 | 30 |
| 2023 | December | 20.1 | 29.3 | 104.6 | 31 |
| 2024 | January | 20.1 | 29.0 | 130.3 | 31 |
| 2024 | February | 21.4 | 30.9 | 109.8 | 29 |
| 2024 | March | 19.9 | 29.3 | 89.9 | 31 |
| 2024 | April | 18.3 | 25.8 | 238.1 | 30 |
| 2024 | May | 13.5 | 20.1 | 356.1 | 31 |
| 2024 | June | 13.3 | 21.6 | 160.8 | 30 |
| 2024 | July | 10.1 | 17.9 | 101.9 | 31 |
| 2024 | August | 11.4 | 20.3 | 86.8 | 31 |
| 2024 | September | 14.4 | 23.9 | 189.8 | 30 |
| 2024 | October | 16.0 | 24.8 | 82.1 | 31 |
| 2024 | November | 18.8 | 28.2 | 86.2 | 30 |
| 2024 | December | 18.5 | 27.6 | 152.2 | 31 |
| 2025 | January | 21.0 | 30.5 | 79.3 | 31 |
| 2025 | February | 22.3 | 32.7 | 43.5 | 28 |
| 2025 | March | 20.8 | 30.8 | 59.6 | 31 |
| 2025 | April | 16.3 | 24.3 | 121.2 | 30 |
| 2025 | May | 14.3 | 23.1 | 204.6 | 31 |
| 2025 | June | 10.0 | 17.4 | 205.6 | 30 |
| 2025 | July | 9.4 | 18.3 | 110.9 | 31 |
| 2025 | August | 11.7 | 20.4 | 111.0 | 31 |
| 2025 | September | 13.7 | 22.5 | 149.5 | 30 |
| 2025 | October | 15.4 | 24.4 | 110.3 | 31 |
| 2025 | November | 16.6 | 26.5 | 95.9 | 30 |
| 2025 | December | 20.4 | 30.2 | 163.3 | 31 |
Daily weather records
| Record | Date | Value |
|---|---|---|
| Hottest day | February 25, 2025 | 38.4 C |
| Coldest night | July 1, 2024 | 2.4 C |
| Wettest day | September 26, 2023 | 97.1 mm |
Related pages
Weather data source: Open-Meteo Archive API. City metadata source: GeoNames cities15000.