Porto Alegre weather records
Record high and low temperatures for Porto Alegre, by month, by season, and all-time, with the dates they occurred, across 1980–2026 of daily climate history. Its hottest day on record reached 40°C on 2006-01-08; its coldest fell to -1°C on 1991-07-15.
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°C2006-01-08
18°C2009-01-03
|
26°C2014-01-24
11°C1990-01-19
|
| February | 40°C2014-02-07
21°C1983-02-28
|
26°C2014-02-08
11°C1991-02-16
|
| March | 37°C2025-03-03
19°C1987-03-10
|
25°C1980-03-23
8°C2012-03-29
|
| April | 35°C2016-04-17
14°C2016-04-29
|
24°C1980-04-11
6°C2016-04-29
|
| May | 32°C1982-05-13
10°C2007-05-29
|
23°C2026-05-07
3°C1990-05-23
|
| June | 31°C2019-06-29
9°C1996-06-29
|
21°C1983-06-20
-1°C2012-06-09
|
| July | 32°C1987-07-25
8°C1990-07-20
|
22°C2026-07-18
-1°C1991-07-15
|
| August | 34°C2021-08-19
9°C1991-08-02
|
22°C2015-08-08
0°C1991-08-03
|
| September | 36°C1994-09-24
11°C2002-09-01
|
22°C1981-09-09
2°C2006-09-06
|
| October | 37°C2019-10-12
15°C1999-10-03
|
25°C1991-10-15
5°C1987-10-03
|
| November | 40°C1985-11-16
17°C2025-11-07
|
26°C1990-11-14
8°C1980-11-01
|
| December | 39°C1995-12-18
19°C2020-12-06
|
26°C2012-12-25
11°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°C2006-01-08
18°C2009-01-03
|
26°C2014-02-08
11°C1991-02-16
|
| Autumn (Mar–May) | 37°C2025-03-03
10°C2007-05-29
|
25°C1980-03-23
3°C1990-05-23
|
| Winter (Jun–Aug) | 34°C2021-08-19
8°C1990-07-20
|
22°C2015-08-08
-1°C1991-07-15
|
| Spring (Sep–Nov) | 40°C1985-11-16
11°C2002-09-01
|
26°C1990-11-14
2°C2006-09-06
|
All-time records
The most extreme value Porto Alegre has recorded for each metric across its entire history.
High
Low
Feels-like
Humidity
Wind
Gust
Precip
For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.