San Antonio Historic Weather Records
Analyse hottest, coldest, windiest & wettest days

San Antonio Weather Trend Graph

Temperature (°C)

Months

Months	Historic Min Temp.	Min Temp.	Forecasted Min Temp.	Historic Max Temp.	Max Temp.	Forecasted Max Temp.
	13.518749999999999	4.1		22.862499999999997	19.3
	13.49375	5.9		22.225000000000005	19.8
	11.41875	14.2		19.85625	21.5
	10.012500000000001	17.5		19.3875	23.2
	9.799999999999999	14.7		19.40625	22.6
	9.55625	9.1		20.062499999999996	23.8
	8.043750000000001	15		18.556250000000002	21.1
	9.01875	14.5		19.225	22.2
	10.487499999999999	17.8		19.9	26.5
	10.725000000000001	17.2		20.29375	24.6
	11.287500000000001	15		20.568749999999998	19
	11.950000000000001	6.3		21.312500000000004	15
	10.825000000000001	11.4		20.1875	18.6
	9.587499999999999	14.7		18.95625	18
Jan.	9.8375	7.8		20.225	15.2
	10.931249999999999	2.1		20.05	16.3
	9.406249999999998	7.1		19.756249999999998	20
	9.343750000000002	7.3		19.3375	15.9
	9.90625	0.5		21.200000000000003	16.6
	9.44375	0.9		20.40625	18.6
	10.7625	8.3		20.05625	20.3
	10.28125	13.8		19.68125	23.4
	10.562499999999998	17		19.249999999999996	24.9
	10.08125	15.2		20.43125	23.3
	10.53125	16.8		20.94375	26.9
	11.587499999999999	9		20.55	20.7
	11.76875	0.8		20.3125	14.2
	10.656250000000002	1.7		20.056250000000002	17.5
	9.362499999999999	3.1		19.687499999999996	18.7
	9.33125	7.6		19.56875	21.9
	9.625	3		20.543750000000003	13.1
	11.4375	-3		21.96875	7.4
	12.50625	0.3		22.66875	14.2
	12.387500000000001	2.6		21.974999999999994	17
	12.95	6		23.250000000000004	22.8
	13.2	6.7		22.7125	13.6
	13.000000000000004	1.3		22.268749999999997	15.9
	12.600000000000001	10.9		21.406250000000004	21
	11.549999999999997	5.6		21.824999999999996	20
	12.29375	7.1		22.518749999999997	20.8
	12.6375	6.1		22.431250000000002	24.6
	12.656250000000002	9.8		22.75	19.1
	13.168750000000003	15		22.15	20.8
	11.981250000000003	15.8		21.125	22.4
	10.025	16.9		21.1375	24.8
Feb.	12.637500000000003	16.7		23.71875	25.5
	12.468749999999998	16.5		22.987499999999997	23.2
	12.35	14.7		22.8875	23.7
	12.51875	17.2		22.731250000000003	24.6
	13.225	16.7		23.156250000000004	25.4
	12.15625	16.1		23	27.5
	12.625	16.9		24.125	28.3
	14.068749999999998	10.2		25.075	21.2
	15.862499999999999	4		25.687500000000004	13.5
	15.662500000000001	0.6		25.00625	15.9
	14.749999999999996	2.8		24.15	20.9
	13.356250000000001	6.3		23.631249999999998	22.2
	12.706249999999999	15.7		22.8375	26.8
	13.312500000000002	15.2		23.7375	21
	14.081250000000002	15		24.531250000000004	21.9
	13.718750000000002	16.4		24.787499999999998	26.6
	13.162499999999998	19.2		23.312500000000004	25.9
	13.568750000000001	18.7		24.156250000000004	27.2
	13.56875	18.8		23.76875	28.4
	12.381250000000001	19.1		22.256249999999998	26.5
	10.86875	19.3		22.61875	28.1
	11.487499999999999	18.1		23.7125	27.5
	13.399999999999999	18.2		25.337500000000002	28.8
	14.54375	17.9		25.481250000000003	30.6
	14.949999999999994	19		25.2875	30.8
	13.85	15.9		24.1375	24.5
	12.9625	14.8		23.593750000000004	25.1
	12.8375	19.3		24.375	23.2
Mar.	13.518749999999999	20.5		25.34375	29.8
	14.243749999999999	18.3		25.681250000000002	27.9
	14.306249999999999	7.5		25.400000000000002	13.1
	14.8625	6.4		26.2875	20.9
	14.675000000000002	8.5		25.44375	22.2
	13.656249999999998	10.6		24.912499999999994	24.7
	12.85625	11.3		24.487499999999997	26.7
	13.18125	8.9		25.13125	26.9
	14.793750000000001	14.3		26.093749999999996	24.3
	15.081250000000002	16		26.44375	25.3
	16.04375	17.1		26.55	25.3
	15.637500000000001	20.5		25.949999999999996	27.6
	15.39375	16.1		26.525000000000006	29.3
	15.962500000000002	16.4		26.749999999999996	25.9
	15.924999999999999	17.4		26.568749999999998	23.3
	15.606250000000001	18.7		27.125000000000004	27.3
	16.15625	19.4		27.312500000000004	28.5
	16.568749999999998	14.6		27.125	32
	16.15625	15.3		27.750000000000007	32.8
	16.525	19.2		28.087499999999995	32.9
	16.5625	17.1		28.25625	33.8
	16.73125	17.3		27.987499999999997	32.8
	16.268749999999997	17.5		27.300000000000004	29.5
	16.78125	16.4		27.618750000000006	19.7
	16.743750000000002	16.4		26.69375	22.2
	16.30625	17.7		26.875	24
	16.187499999999996	14.9		27.156249999999996	28.1
	16.581249999999997	14.2		27.550000000000004	29.1
	17.256249999999998	14		27.73125	30
	17.2	14.9		28.425000000000004	29.7
	17.5875	15.3		29.112499999999997	28.9
Apr.	17.556250000000002	15.6		28.5875	29.7
	17.112499999999997	14.8		27.775000000000002	30.8
	16.96875	15.5		27.506249999999998	32.2
	17.0875	16.8		28.95625	33.3
	17.8125	18.4		28.3125	31
	17.30625	15.7		27.787500000000005	29.4
	17.2625	12.1		27.9625	30.4
	17.200000000000003	12		28.325	27.7
	17.30625	13.7		28.6	28.6
	17.60625	15.8		28.525	32
	17.68125	16.6		28.325000000000003	33.7
	18.2625	17.8		29.343750000000004	32.6
	18.425	18.1		30.106249999999996	32.5
	18.456249999999997	16.8		29.343749999999996	31.7
	18.71875	16.9		30.125000000000004	33.3
	18.831249999999997	20		29.381249999999998	34
	19.075	20.5		29.581249999999997	34.5
	19.3	18.8		29.343750000000007	33.9
	19.35625	16.3		29.881250000000005	29.6
	19.206249999999997	15.1		30.493750000000002	31.8
	19.10625	16		28.825	33.5
	19.193749999999998	17.4		29.368749999999995	36.2
	18.756249999999998	18.6		29.549999999999997	36.8
	18.037499999999998	20.5		29.98125	35.1
	18.3625	20.6		31.325	34.5
	19.450000000000003	21.7		31.662499999999998	35.4
	20.3125	22.6		31.106250000000006	35.4
	20.306250000000006	22.3		30.7375	33.7
	19.799999999999997	19.2		29.9375	30.5
	19.556250000000002	20.1		29.987499999999997	33.9
May	19.7125	17.1		30.5375	34.9
	20.037500000000005	21		30.293750000000003	38.1
	19.856249999999996	22.1		30.025	36.2
	19.987499999999997	20.1		31.137500000000006	36.8
	20.46875	21.8		31.39375	36
	20.86875	21.2		31.112500000000004	34.4
	21.081249999999997	21		31.381249999999998	36.6
	21.049999999999997	22.2		31.562500000000004	37.2
	21.1125	22.9		32.23125	36.1
	21.2875	22.2		32.28124999999999	33.2
	21.16875	23.6		31.793750000000003	33.3
	20.81875	23.4		30.943749999999998	34.5
	20.5625	23.6		31.824999999999996	33.6
	21.4625	22.8		31.956249999999997	32.1
	21.931250000000002	23.3		31.75	32.3
	21.712500000000006	23.9		31.856249999999996	32.5
	22.193750000000005	24.4		32.09375	33.4
	22.01875	24.2		31.79375	32.7
	22.1125	24		30.46875	34.7
	21.981250000000003	20.3		30.881249999999998	28.7
	22.025000000000002	17.1		30.525	32
	22.268750000000004	18.5		30.431250000000002	32.3
	22.91875	19.1		30.774999999999995	32.1
	23.093749999999996	20		30.806250000000002	33.2
	22.96875	20.2		31.062500000000007	34.7
	22.812499999999996	21.4		31.575000000000003	32.9
	23.15625	22.5		31.800000000000004	34.7
	23.206250000000004	22.1		31.76875	33.1
	23.26875	22.4		31.7125	35.5
	23.325	23.3		31.95	35.4
	23.56875	23.9		32.0125	35.5
Jun.	23.6125	24		32.46875000000001	34
	23.568749999999998	23.7		31.7875	33.9
	23.137499999999996	24.1		32.006249999999994	37.2
	23.568749999999998	24.8		31.8875	37.3
	23.568750000000005	25.4		31.85	34.9
	23.556250000000002	23.9		31.081249999999997	35.2
	23.4375	24.1		31.8	36.9
	23.34375	22.5		32.46875	36.5
	23.581249999999997	24		32.52499999999999	37.6
	23.7375	24.7		32.6625	34.4
	23.906249999999996	23		31.987499999999997	34.1
	24.1	22.1		32.4	36.8
	23.93125	23.4		32.556250000000006	34.9
	24.112500000000004	23.1		32.60625	35
	24.19375	24.8		32.349999999999994	36.9
	23.7125	24		31.756249999999998	34.5
	23.487500000000004	21.8		31.7625	31.6
	23.525000000000002	22.1		31.375	34.8
	23.987500000000004	23.9		31.756249999999998	36.3
	23.8875	24		31.781249999999996	33.2
	24.01875	24.4		31.899999999999995	33.3
	23.85	24.6		31.756249999999994	34.2
	23.750000000000004	23.3		31.425000000000004	35.2
	24.062499999999993	24.8		31.281249999999996	36.6
	24.250000000000004	25.4		31.999999999999993	38.2
	24.3375	24.1		32.13125	37.2
	24.29375	22.1		31.537499999999998	36.7
	24.4625	24.1		31.775000000000002	36.3
	24.09375	22.7		32.231249999999996	35.4
	24.4125	22.7		32.35625	36.8
Jul.	24.100000000000005	21.9		31.825	36.5
	23.893749999999997	24.7		31.781249999999996	34.2
	24.025	24.4		31.875000000000004	33.2
	23.69375	22.9		31.86875	32.1
	23.968750000000007	24.3		32.26875	33.7
	24.156250000000004	24.9		32.5875	35.1
	24.15	24.7		33.0125	35.2
	24.325000000000003	23.8		32.256249999999994	36.9
	24.36875	24.5		31.475000000000005	37
	24.231250000000003	24.5		31.837500000000006	36.8
	24.09375	25.5		31.593749999999996	36.6
	24.037499999999994	24.3		32.18125	36.4
	24.381250000000005	24.2		32.193749999999994	32.3
	24.225000000000005	24		32.362500000000004	34.6
	24.46875	25.6		32.825	31.5
	24.412499999999998	24		32.2875	32.2
	24.462500000000002	23.9		32.075	31.6
	24.368749999999995	24.7		32.51875	32.5
	24.375000000000004	24.8		32.06875	30.7
	24.25	23.6		31.9375	31.6
	24.41875	23.9		32.400000000000006	32.1
	24.525000000000002	22.8		31.799999999999997	33.9
	24.60625	22.9		32.40625000000001	31.1
	24.793749999999996	21.1		31.912499999999998	30.3
	24.65	24.4		31.88125	32.8
	24.50625	24.1		32.21249999999999	34.7
	24.562499999999996	24		31.96875	34.5
	24.4875	25.3		32.5625	35.6
	24.556250000000002	24.3		32.731249999999996	34.9
	24.8125	24.5		32.40625	35.1
	24.687499999999996	25.4		32.275000000000006	35.8
Aug.	24.575000000000003	23.9		31.8	35.9
	24.525000000000006	25.4		32.3875	35.1
	24.400000000000002		25.6	32.337500000000006		35.9
	24.3625		26.3	32.4375		34.4
	24.175000000000008		25.1	32.79375		34.3
	24.299999999999997		25	32.606249999999996		33
	24.506249999999998		25.2	32.60625		33.2
	24.381249999999998		25.3	32.5125		32.3
	24.23125		24.6	31.799999999999997		32.8
	23.99375		23.9	31.7375		33.8
	23.993749999999995		23.9	32.131249999999994		31.9
	23.862500000000004		23.9	31.7875		31.6
	23.95		24.1	31.981250000000006		31.8
	24.206249999999997		24.1	31.76875		31.8
	24.08125		24.1	31.825000000000003		31.6
	24.037499999999998		23.9	31.299999999999997		31.4
	24.031250000000004		23.9	31.6		31.2
	23.6875		23.6	30.65		30.5
	23.531249999999996		23.6	30.875000000000004		31.1
	23.606250000000003		23.4	31.318749999999998		31.4
	23.6		23.6	31.900000000000002		31.8
	23.9625		23.9	32.33125		32.1
	23.749999999999996		23.5	31.693749999999994		31.6
	23.187499999999993		23.2	31.025		30.9
	23.1375		23.1	31.050000000000004		31
	23.012500000000003		23.2	30.75		30.6
	23.575		23.6	30.787500000000005		30.8
	23.687500000000004		23.6	31.13125		31
	23.468750000000004		23.5	31.212500000000006		31.1
	23.331249999999997		23.4	31.48125		31
	22.9875		22.9	31.012500000000006		31.2
Sep.	23.15		23.1	31.14375		31
	23.2875		23.4	31.006249999999998		31.1
	23.28125			30.9625
	22.806250000000002			30.9625
	22.83125			30.6375
	22.6875			31.043750000000003
	22.7			30.962500000000006
	22.65			30.512500000000006
	22.381250000000005			30.662499999999998
	22.193750000000005			30.906250000000004
	22.64375			30.78125
	22.80625			31.25
	22.843750000000004			30.51875
	22.787500000000005			30.343750000000004
	22.61875			29.75
	22.3375			29.924999999999997
	21.825000000000003			29.875
	21.231250000000003			29.481250000000003
	20.84375			29.087499999999995
	20.450000000000003			28.924999999999994
	20.61875			28.35625
	20.818750000000005			29.150000000000002
	21.48125			29.775
	21.281250000000004			29.2375
	21.46875			29.056250000000002
	21.38125			28.887500000000003
	20.91875			29.1125
	20.425			28.9875
	20.35625			29.20625
	20.456249999999997			29.443750000000005
Oct.	19.8875			28.95
	19.79375			28.78125
	19.0375			27.7625
	18.200000000000003			27.01875
	18.3125			27.368749999999995
	18.931250000000002			27.63125
	18.8125			28.20625
	17.993750000000002			28.237499999999997
	17.900000000000002			27.337500000000002
	17.40625			27.4625
	17.8875			27.66875
	18.306250000000002			28.10625
	18.46875			28.15
	18.9375			27.737500000000004
	17.88125			27.34375
	17.281250000000004			26.15
	16.5125			26.500000000000004
	15.83125			26.056249999999995
	17			26.206250000000004
	15.975000000000001			25.831250000000004
	16.61875			26.487499999999997
	17.306250000000002			26.20625
	17.337500000000002			26.06875
	17.25			26.5875
	16.9375			25.781249999999996
	16.3875			25.08125
	15.587499999999999			24.33125
	16.1375			25.668749999999996
	16.2125			26.293749999999996
	15.85			25.25625
	15.418750000000001			24.85625
Nov.	15.362499999999999			24.493750000000006
	15.481250000000001			24.06875
	15.043749999999998			24.462500000000002
	14.249999999999998			24.131249999999998
	14.200000000000001			23.76875
	14.506250000000001			23.3
	15.374999999999998			24.243750000000002
	15.649999999999999			23.718749999999996
	14.431250000000002			23.35
	13.99375			23.15625
	14.881250000000001			24.006249999999994
	14.675			24.550000000000008
	12.343749999999998			22.906249999999996
	11.5875			22.237499999999997
	13.375000000000002			23.062500000000004
	13.775			24.3125
	14.256250000000001			24.137500000000003
	13.91875			22.956250000000004
	12.700000000000001			22.38125
	13.1625			23.3125
	14.118749999999999			23.462500000000002
	13.793750000000001			23.568749999999998
	13.012500000000001			22.5625
	12.368749999999999			22.512500000000003
	13.124999999999998			22.5125
	12.73125			21.8875
	11.418750000000001			21.962500000000002
	12.09375			22.325
	12.9875			21.662499999999998
	13.225			22.237499999999994
Dec.	13.6			22.287499999999998
	13.475000000000001			22.568749999999998
	13.9125			24.062499999999996
	12.725			22.300000000000004
	11.68125			22.03125
	13.237499999999999			22.775
	14.418750000000001			22.974999999999998
	13.59375			21.924999999999997
	12.056249999999999			22.05625
	11.575			21.681249999999995
	12.262500000000003			21.762499999999996
	12.55			21.612500000000004
	13.24375			22.05625
	12.8625			21.768750000000004
	12.81875			22.675
	13.28125			22.612500000000004
	13.84			21.813333333333336

Max Temp.

Historic Max Temp.

Min Temp.

Historic Min Temp.

Yearly Summary 2026

38°C

Highest Temp

9 Jul. 26

-3°C

Lowest Temp

1 Feb. 26

Seasonal Breakdown

Hottest MonthJuly34.89°C

Coldest MonthJanuary9.66°C

Wettest MonthMay9.37mm

Windiest MonthApril22.26km/h

San Antonio Climate Change InsightsSee how climate patterns are evolving over time. Temperature shifts, rainfall trends, and extreme events—all in one place.

Weather City Ranking GloballyExplore Real time of the world’s hottest & Coldest Cities based on current temperature data.

Frequently Asked Questions

1. What is the hottest month in San Antonio historically?

August is historically San Antonio's hottest month, with average maximum temperatures around 32°C. During peak heatwave events, the highest recorded temperatures have reached 38°C on 2026-07-09.

2. What is the coldest month in San Antonio historically?

January is San Antonio's coldest month, with average minimum temperatures around 10°C. The all-time record low of -3°C was recorded on 2026-02-01.

3. What is the average annual rainfall in San Antonio over the past 17 years?

San Antonio's average annual rainfall is approximately 1580.1mm, based on records spanning 17 years.

4. How many rainy days does San Antonio experience on average per year?

San Antonio historically records approximately 199.5 rainy days per year. July has the highest number of rain days at an average of 27.4 days.

5. What is the all-time highest temperature ever recorded in San Antonio?

The all-time highest temperature recorded in San Antonio is 38°C on 2026-07-09.

6. What is the all-time lowest temperature ever recorded in San Antonio?

The all-time lowest temperature recorded in San Antonio is -3°C on 2026-02-01.

7. What is the windiest time of year in San Antonio historically?

San Antonio experiences its strongest winds during March. The historic gust record of 65.2 kph was recorded on 2024-10-09.

8. What is the highest and lowest humidity in San Antonio during a year?

Usually, San Antonio's humidity peaks in September at around 77.006% and drops to its lowest in May at approximately 69.3%.

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San Antonio Historic Weather Records
Analyse hottest, coldest, windiest & wettest days

San Antonio Weather Trend Graph

Yearly Summary 2026

Seasonal Breakdown

Frequently Asked Questions

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Analyse hottest, coldest, windiest & wettest days