Currently: 83 °F. Mostly cloudy. (Weather station: San Antonio International Airport, USA). See more current weatherSeptember 2018 Weather in San Antonio — Graph
High & Low Weather Summary for September 2018
| Temperature | Humidity | Pressure | |
|---|---|---|---|
| High | 97 °F (Sep 2, 4:51 pm) | 97% (Sep 4, 1:51 am) | 30.13 "Hg (Sep 4, 1:51 am) |
| Low | 64 °F (Sep 28, 6:51 am) | 34% (Sep 1, 4:51 pm) | 29.74 "Hg (Sep 2, 5:51 pm) |
| Average | 78 °F | 80% | 29.93 "Hg |
| * Reported Sep 1 12:51 am — Sep 30 11:51 pm, San Antonio. Weather by CustomWeather, © 2024 | |||
Note: Actual official high and low records may vary slightly from our data, if they occured in-between our weather recording intervals... More about our weather records
San Antonio Weather History for September 1, 2018
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| Conditions | Comfort | |||||||
|---|---|---|---|---|---|---|---|---|
| Time | Temp | Weather | Wind | Humidity | Barometer | Visibility | ||
| 12:51 am Sat, Sep 1 |  | 79 °F | Clear. | 8 mph | ↑ | 74% | 29.88 "Hg | 10 mi |
| 1:51 am | | 79 °F | Clear. | 9 mph | ↑ | 77% | 29.88 "Hg | 10 mi |
| 2:58 am |  | 77 °F | Passing clouds. | 5 mph | ↑ | 79% | 29.93 "Hg | 10 mi |
| 3:58 am | | 76 °F | Passing clouds. | 5 mph | ↑ | 82% | 29.94 "Hg | 10 mi |
| 4:51 am | | 76 °F | Passing clouds. | 3 mph | ↑ | 85% | 29.88 "Hg | 10 mi |
| 5:51 am | | 75 °F | Passing clouds. | No wind | ↑ | 88% | 29.87 "Hg | 10 mi |
| 6:51 am | | 75 °F | Passing clouds. | 3 mph | ↑ | 88% | 29.87 "Hg | 10 mi |
| 7:51 am |  | 76 °F | Passing clouds. | 3 mph | ↑ | 88% | 29.89 "Hg | 10 mi |
| 8:51 am | | 79 °F | Passing clouds. | 7 mph | ↑ | 77% | 29.89 "Hg | 10 mi |
| 9:51 am | | 82 °F | Scattered clouds. | 6 mph | ↑ | 67% | 29.90 "Hg | 10 mi |
| 10:51 am | | 85 °F | Scattered clouds. | 3 mph | ↑ | 59% | 29.90 "Hg | 10 mi |
| 11:51 am | | 88 °F | Scattered clouds. | 8 mph | ↑ | 52% | 29.88 "Hg | 10 mi |
| 12:51 pm | | 91 °F | Scattered clouds. | 10 mph | ↑ | 45% | 29.87 "Hg | 10 mi |
| 1:51 pm | | 93 °F | Partly sunny. | 7 mph | ↑ | 41% | 29.85 "Hg | 10 mi |
| 2:51 pm | | 95 °F | Partly sunny. | 6 mph | ↑ | 37% | 29.82 "Hg | 10 mi |
| 3:51 pm | | 95 °F | Partly sunny. | 6 mph | ↑ | 36% | 29.79 "Hg | 10 mi |
| 4:51 pm | | 96 °F | Scattered clouds. | 6 mph | ↑ | 34% | 29.76 "Hg | 10 mi |
| 5:51 pm | | 96 °F | Scattered clouds. | 15 mph | ↑ | 35% | 29.75 "Hg | 10 mi |
| 6:51 pm | | 93 °F | Passing clouds. | 13 mph | ↑ | 38% | 29.75 "Hg | 10 mi |
| 7:51 pm | | 92 °F | Scattered clouds. | 12 mph | ↑ | 41% | 29.77 "Hg | 10 mi |
| 8:51 pm | | 90 °F | Passing clouds. | 14 mph | ↑ | 45% | 29.79 "Hg | 10 mi |
| 9:51 pm | | 88 °F | Passing clouds. | 16 mph | ↑ | 52% | 29.84 "Hg | 10 mi |
| 10:51 pm | | 86 °F | Passing clouds. | 17 mph | ↑ | 61% | 29.85 "Hg | 10 mi |
| 11:51 pm | | 83 °F | Passing clouds. | 16 mph | ↑ | 63% | 29.85 "Hg | 10 mi |
| Weather by CustomWeather, © 2024 | ||||||||