Porto Alegre, Rio Grande do Sul, Brazil weather records
Record high and low temperatures for Porto Alegre, Rio Grande do Sul, Brazil, by month, by season, and all-time, with the dates they occurred, across 1981–2026 of daily climate history. Its hottest day on record reached 40°C on 1986-01-16; its coldest fell to -2°C on 2009-07-25.
Records by month
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have ever been in each calendar month, so each column shows its record high and its record low. Tap a month for its full averages and typical range.
| Month | Daytime high | Overnight low |
|---|---|---|
| January | 40°C1986-01-16
21°C2009-01-03
|
26°C2022-01-23
12°C1994-01-12
|
| February | 39°C2014-02-07
20°C1996-02-11
|
26°C2010-02-07
12°C1996-02-13
|
| March | 39°C2020-03-14
20°C1998-03-26
|
25°C2025-03-02
9°C2012-03-29
|
| April | 36°C2021-04-11
13°C2016-04-29
|
23°C1996-04-03
6°C2016-04-29
|
| May | 33°C2021-05-03
11°C2007-05-29
|
22°C2019-05-04
2°C2007-05-29
|
| June | 29°C1991-06-03
10°C1994-06-25
|
21°C1992-06-08
0°C2012-06-08
|
| July | 29°C2012-07-02
9°C2000-07-13
|
19°C1987-07-15
-2°C2009-07-25
|
| August | 31°C2012-08-23
9°C2013-08-27
|
19°C2021-08-19
-1°C1991-08-02
|
| September | 33°C1994-09-23
11°C2002-09-01
|
21°C2018-09-30
2°C2006-09-05
|
| October | 34°C2019-10-12
15°C1999-10-03
|
22°C1991-10-15
5°C1999-10-04
|
| November | 37°C1991-11-24
17°C2022-11-01
|
24°C1990-11-15
7°C1992-11-05
|
| December | 37°C2011-12-22
20°C1982-12-02
|
25°C2006-12-18
10°C1982-12-09
|
Records by season
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have reached in each meteorological season (Southern Hemisphere, each a three-month span).
| Season | Daytime high | Overnight low |
|---|---|---|
| Summer (Dec–Feb) | 40°C1986-01-16
20°C1982-12-02
|
26°C2010-02-07
10°C1982-12-09
|
| Autumn (Mar–May) | 39°C2020-03-14
11°C2007-05-29
|
25°C2025-03-02
2°C2007-05-29
|
| Winter (Jun–Aug) | 31°C2012-08-23
9°C2013-08-27
|
21°C1992-06-08
-2°C2009-07-25
|
| Spring (Sep–Nov) | 37°C1991-11-24
11°C2002-09-01
|
24°C1990-11-15
2°C2006-09-05
|
All-time records
The most extreme value Porto Alegre has recorded for each metric across its entire history.
High
Low
Feels-like
Humidity
Wind
Precip
For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.