Weather in Bexar County

Calculated from weather data of San Antonio International Airport (KSAT) between 2020 and 2024.

Maximum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	65.0	60.0	69.0	64.0	65.0	69.0
February	68.0	71.0	70.0	65.0	60.0	67.0
March	76.0	76.0	78.0	77.0	76.0	78.0
April	81.0		81.0	85.0	81.0	81.0
May	88.0		85.0	94.0	83.0	90.0
June	94.0		96.0	99.0	90.0	92.0
July	97.0		100.0	100.0	89.0	99.0
August	97.0		102.0	96.0	94.0	99.0
September	92.0		97.0	92.0	93.0	89.0
October	82.0		83.0	84.0	84.0	84.0
November	72.0		69.0	69.0	72.0	77.0
December	68.0		68.0	68.0	74.0	69.0
Average	80.0	69.0	83.0	83.0	80.0	83.0

Average highest temperature per day

The maximum temperature is typically observed some hours after noon.

Minimum temperatures (°F)

Month	Average	2024	2023	2022	2021	2020
January	44.0	40	48	41	43	49
February	48.0	51	48	39	41	46
March	56.0	57	58	49	54	61
April	61.0		60	64	61	60
May	69.0		68	72	67	68
June	75.0		76	76	74	74
July	77.0		78	78	75	78
August	77.0		79	77	76	76
September	73.0		76	72	71	70
October	62.0		65	62	64	61
November	53.0		54	53	52	56
December	47.0		47	55	56	43
Average	60.0	49.0	63.0	62.0	61.0	62.0

Average lowest temperature per day

The minimum temperature is typically observed just before sunrise.

Cold and hot days

Number of days	2024	2023	2022	2021	2020
86 °F or warmer	3	155	174	137	167
77 °F or warmer	19	244	245	228	239
68 °F or warmer	50	306	291	320	313
32 °F or colder	7	1	10	11	4

Precipitation (%)

Month	Average	2024	2023	2022	2021	2020
January	9.6	11	12	8	10	8
February	12.1	2	9	16	17	9
March	6.4	7	10	2	4	10
April	6.9		9	8	10	11
May	5.6		7	2	8	2
June	2.7		2	0	4	3
July	1.9		1	0	6	2
August	2.2		1	3	3	1
September	5.0		0	0	1	6
October	6.1		10	3	2	5
November	9.9		15	17	3	8
December	10.6		8	20	11	7
Average	6.5	6.8	6.7	5.7	6.3	5.6

Precipitation during daylight period

Percentage of observations with observed rain, drizzle, snow or hail. Only observations between sunrise and sunset are taken into account.

Wind speed (miles per hour)

Month	Average	2024	2023	2022	2021	2020
January	8.7	9	9	9	9	9
February	9.6	10	10	10	9	10
March	10.5	10	10	12	12	9
April	10.9		11	12	10	10
May	10.3		8	12	10	10
June	9.6		9	10	9	10
July	9.0		9	10	8	9
August	8.9		9	9	9	9
September	8.0		7	7	7	10
October	8.9		10	8	8	9
November	8.2		8	9	8	8
December	8.2		8	8	8	8
Average	9.3	9.5	8.9	9.6	8.9	9.2

Average wind speed

Excluding wind gusts. Only observations between sunrise and sunset are taken into account.

Prevailing wind direction

Month	2024	2023	2022	2021	2020
January	N	N	N	N	SE
February	SW	W	N	NE	N
March	SE	SE	S	SE	SE
April		E	SE	E	E
May		SE	SE	E	SE
June		SE	SE	SE	SE
July		SE	SE	SE	SE
August		SE	SE	SE	SE
September		SE	SE	E	NE
October		E	SE	SE	E
November		NE	E	SE	E
December		E	SE	S	SW

Prevailing wind direction

Average wind direction, weighed by wind speed. Only observations between sunrise and sunset are taken into account.

Bexar County weather Q&A

What is the warmest month in Bexar County?

The warmest month is August with an average temperature of 97 °F over the past years.

What is the coldest month in Bexar County?

The coldest month is January with an average daytime temperature of 65 °F in the past few years.

Which month is the wettest in Bexar County?

Chance of precipitation is the highest in February with a probability of around 12.1 %.

Which month is the driest in Bexar County?

The least rainfall and snow can be expected in July. The probability is about 2.0 %.