San Antonio, Texas, United States weather records
Record high and low temperatures for San Antonio, Texas, United States, 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 113°F on 2000-09-05; its coldest fell to 9°F on 1989-12-23.
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 | 87°F2026-01-06
30°F1985-01-12
|
65°F2005-01-03
16°F1982-01-11
|
| February | 97°F1996-02-22
28°F2021-02-15
|
67°F2018-02-20
12°F2021-02-15
|
| March | 96°F2026-03-15
43°F2019-03-04
|
68°F2026-03-05
22°F2002-03-04
|
| April | 105°F1984-04-20
48°F2007-04-07
|
73°F2026-04-28
33°F1987-04-03
|
| May | 109°F1984-05-05
62°F1994-05-01
|
79°F2024-05-27
43°F2013-05-04
|
| June | 110°F2023-06-21
74°F1987-06-04
|
79°F1998-06-28
57°F1984-06-01
|
| July | 110°F2018-07-23
76°F2007-07-25
|
81°F2022-07-11
61°F1985-07-01
|
| August | 112°F2011-08-28
78°F2001-08-29
|
82°F2024-08-23
64°F1992-08-18
|
| September | 113°F2000-09-05
70°F1985-09-30
|
81°F2020-09-01
46°F1985-09-30
|
| October | 100°F2024-10-14
50°F1993-10-30
|
77°F2023-10-04
29°F1993-10-31
|
| November | 93°F1988-11-07
40°F2019-11-13
|
72°F2015-11-05
25°F1993-11-27
|
| December | 89°F2024-12-30
27°F1983-12-24
|
66°F2015-12-12
9°F1989-12-23
|
Records by season
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have reached in each meteorological season (Northern Hemisphere, each a three-month span).
| Season | Daytime high | Overnight low |
|---|---|---|
| Winter (Dec–Feb) | 97°F1996-02-22
27°F1983-12-24
|
67°F2018-02-20
9°F1989-12-23
|
| Spring (Mar–May) | 109°F1984-05-05
43°F2019-03-04
|
79°F2024-05-27
22°F2002-03-04
|
| Summer (Jun–Aug) | 112°F2011-08-28
74°F1987-06-04
|
82°F2024-08-23
57°F1984-06-01
|
| Autumn (Sep–Nov) | 113°F2000-09-05
40°F2019-11-13
|
81°F2020-09-01
25°F1993-11-27
|
All-time records
The most extreme value San Antonio 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.