São Luís weather records
Record high and low temperatures for São Luís, 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 32°C on 2015-08-18; its coldest fell to 23°C on 1988-05-10.
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 | 30°C2005-01-06
25°C1985-01-24
|
28°C2024-01-30
24°C2001-01-25
|
| February | 30°C1983-02-23
25°C2001-02-26
|
28°C1998-02-06
23°C2018-02-24
|
| March | 30°C2010-03-14
25°C1980-03-06
|
28°C2005-03-06
24°C1986-03-03
|
| April | 31°C2026-04-07
25°C1999-04-28
|
28°C2016-04-29
24°C1984-04-09
|
| May | 31°C2023-05-22
25°C1999-05-15
|
28°C2024-05-09
23°C1988-05-10
|
| June | 31°C2024-06-12
26°C1986-06-03
|
27°C2024-06-11
24°C1985-06-14
|
| July | 31°C2017-07-29
25°C2000-07-28
|
27°C2024-07-05
23°C2000-07-19
|
| August | 32°C2015-08-18
27°C2000-08-02
|
27°C2017-08-02
24°C1984-08-29
|
| September | 31°C2025-09-05
26°C1984-09-02
|
27°C2023-09-10
24°C2000-09-18
|
| October | 30°C2016-10-12
27°C1992-10-27
|
27°C2021-10-26
24°C2011-10-21
|
| November | 30°C2005-11-30
27°C1991-11-02
|
28°C2023-11-15
24°C2022-11-07
|
| December | 30°C2021-12-05
26°C2022-12-23
|
28°C2019-12-21
24°C1985-12-30
|
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) | 30°C2021-12-05
25°C1985-01-24
|
28°C1998-02-06
23°C2018-02-24
|
| Autumn (Mar–May) | 31°C2023-05-22
25°C1980-03-06
|
28°C2024-05-09
23°C1988-05-10
|
| Winter (Jun–Aug) | 32°C2015-08-18
25°C2000-07-28
|
27°C2024-06-11
23°C2000-07-19
|
| Spring (Sep–Nov) | 31°C2025-09-05
26°C1984-09-02
|
28°C2023-11-15
24°C2011-10-21
|
All-time records
The most extreme value São Luís 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.