San Antonio weather in July: San Antonio, Texas: normal highs, lows, rain and records for July
San Antonio in July has a normal high of 95°F and a normal low of 75°F, a daily mean of 85°F, rising from 94°F on the 1st to 97°F by the 31st. Measurable precipitation falls on 5 days in a normal July, 2.41 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 35°C and low of 24°C, 61 mm of precipitation in July.
- NOAA stationSan Antonio International Airport
- Station IDUSW00012921
- Location29.54°N 98.48°W
- Elevation789 ft (241 m)
- From the center6 miles
- Population1,526,656
- Jan 63° 41°
- Feb 68° 45°
- Mar 74° 52°
- Apr 80° 58°
- May 87° 66°
- Jun 92° 73°
- Jul 95° 75°
- Aug 96° 75°
- Sep 90° 70°
- Oct 82° 60°
- Nov 72° 50°
- Dec 65° 42°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is San Antonio in July?
The normal high is 95°F and the normal low 75°F, for a daily mean of 84.8°F. July is 2.2°F warmer than June and 0.7°F cooler than August. July is the 2nd warmest month of the year in San Antonio and the 6th wettest. Across the month the normal high rises 3°F, from 94°F on July 1 to 97°F on July 31. From one year to the next July's mean temperature typically moves about 2.0°F either way (NOAA's standard deviation), so roughly two Julys in three average between 83°F and 87°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 21%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| July 1 | 94°F | 74°F | 21% | 14% |
| July 8 | 94°F | 74°F | 19% | 12% |
| July 15 | 95°F | 75°F | 16% | 10% |
| July 22 | 96°F | 75°F | 15% | 9% |
| July 31 | 97°F | 75°F | 14% | 8% |
Every day of July: normal high, low and chance of precipitation (warmest afternoon July 31, coldest night July 1)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| July 1 | 94°F | 74°F | 21% | 14% | 14 h |
| July 2 | 94°F | 74°F | 21% | 14% | 14 h |
| July 3 | 94°F | 74°F | 20% | 14% | 14 h |
| July 4 | 94°F | 74°F | 20% | 14% | 14 h |
| July 5 | 94°F | 74°F | 20% | 13% | 14 h |
| July 6 | 94°F | 74°F | 19% | 13% | 14 h |
| July 7 | 94°F | 74°F | 19% | 13% | 14 h |
| July 8 | 94°F | 74°F | 19% | 12% | 14 h |
| July 9 | 94°F | 74°F | 18% | 12% | 14 h |
| July 10 | 94°F | 74°F | 18% | 12% | 14 h |
| July 11 | 94°F | 74°F | 18% | 11% | 14 h |
| July 12 | 94°F | 75°F | 17% | 11% | 13 h 50 min |
| July 13 | 95°F | 75°F | 17% | 11% | 13 h 50 min |
| July 14 | 95°F | 75°F | 17% | 11% | 13 h 50 min |
| July 15 | 95°F | 75°F | 16% | 10% | 13 h 50 min |
| July 16 | 95°F | 75°F | 16% | 10% | 13 h 50 min |
| July 17 | 95°F | 75°F | 16% | 10% | 13 h 50 min |
| July 18 | 95°F | 75°F | 16% | 10% | 13 h 50 min |
| July 19 | 95°F | 75°F | 15% | 9% | 13 h 50 min |
| July 20 | 95°F | 75°F | 15% | 9% | 13 h 50 min |
| July 21 | 95°F | 75°F | 15% | 9% | 13 h 50 min |
| July 22 | 96°F | 75°F | 15% | 9% | 13 h 50 min |
| July 23 | 96°F | 75°F | 14% | 9% | 13 h 40 min |
| July 24 | 96°F | 75°F | 14% | 8% | 13 h 40 min |
| July 25 | 96°F | 75°F | 14% | 8% | 13 h 40 min |
| July 26 | 96°F | 75°F | 14% | 8% | 13 h 40 min |
| July 27 | 96°F | 75°F | 14% | 8% | 13 h 40 min |
| July 28 | 96°F | 75°F | 14% | 8% | 13 h 40 min |
| July 29 | 96°F | 75°F | 14% | 8% | 13 h 40 min |
| July 30 | 97°F | 75°F | 14% | 8% | 13 h 40 min |
| July 31 | 97°F | 75°F | 14% | 8% | 13 h 40 min |
- Normal high
- 95°FJuly average
- Normal low
- 75°FJuly average
- Precipitation
- 2.41 inmonth total
- Days with precipitation
- 50.01 inch or more
- Days at 90°F or more
- 29
- Daylight
- 14 h to 13 h 40 minJuly 1 to July 31
- Days at 70°F or more
- 31
- Days at 80°F or more
- 31
- Sunshine
- 86%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00012921; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in San Antonio in July?
On a given July day the chance of 0.01 inch or more is 16% on average, highest around July 1 (21%). In all, 2.41 in falls on 5 days of a normal July, 1 of them with an inch or more.
In a normal July in San Antonio, 29 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00012921.
How humid and windy is San Antonio in July?
At 3 p.m. the normal temperature is 95°F with 39% relative humidity and a dew point of 66°F; at 6 a.m. it is 76°F with 86% humidity. The wind averages 8.5 mph, most often from the southeast in the afternoon. A dew point of 65°F or more feels muggy to most people.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 76°F | 72°F | 86% | 5.5 mph | 24% |
| 9 a.m. | 83°F | 71°F | 69% | 7.9 mph | 27% |
| noon | 91°F | 69°F | 48% | 8.2 mph | 36% |
| 3 p.m. | 95°F | 66°F | 39% | 9.6 mph | 33% |
| 6 p.m. | 93°F | 65°F | 40% | 10.9 mph | 38% |
| 9 p.m. | 85°F | 69°F | 57% | 11.3 mph | 53% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00012921. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for July in San Antonio?
The warmest July temperature on San Antonio's official record (since 1885) is 107°F, on July 13, 2020; the coldest is 60°F, on July 11, 1905. The wettest July brought 16.92 in (2002).
The July mean against the 1991-2020 normal of 84.8°F: 2021 82.3°F (−2.5), 2022 89.8°F (+5.0), 2023 89.4°F (+4.6), 2024 85.1°F (+0.3), 2025 84.7°F (−0.1), 2026 85.3°F (+0.5). 4 of 6 ran warmer than normal.
| July | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 82.3°F | −2.5°F | 4.38 in |
| 2022 | 89.8°F | +5.0°F | 0.01 in |
| 2023 | 89.4°F | +4.6°F | 0.17 in |
| 2024 | 85.1°F | +0.3°F | 4.25 in |
| 2025 | 84.7°F | −0.1°F | 1.19 in |
| 2026 | 85.3°F | +0.5°F | 3.05 in |
Source: records: ACIS, NWS threaded record SATthr; recent months: ACIS, station USW00012921. Records and recent months use complete months only.
How does July in San Antonio compare across Texas?
Across the 321 places PlainClimate covers in Texas, July normal highs run from 88°F in Matagorda to 101°F in Presidio; San Antonio's is 95°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.