San Antonio, TX weather in October
San Antonio is warm and often humid in October, with some rain: highs average 82°F and nights drop to about 60°F. Expect about 6 wet days.
- Normal high
- 82°F
- Normal low
- 60°F
- Wet days
- 6
- 3.8 in total
- Muggy days
- 10
- dew point 65°F+
How October changes from start to finish
| October 1 | October 31 | |
|---|---|---|
| Normal high | 87°F | 77°F |
| Normal low | 65°F | 55°F |
| Chance of a wet day | 20% | 22% |
| Sunrise / sunset | 7:27 am / 7:20 pm | 7:46 am / 6:48 pm |
| Daylight | 11.9 h | 11.0 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical October day
- 6 am63°Fdew point 59°F
- 9 am70°Fdew point 60°F
- Noon78°Fdew point 59°F
- 3 pm82°Fdew point 57°F
- 6 pm77°Fdew point 57°F
- 9 pm70°Fdew point 59°F
NOAA hourly normals (local standard time) from San Antonio Kelly AFB (6 mi away); average wind 7 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F6 of 31
- Hot dayshigh 90°F or more6 of 31
- Muggy daysdaily mean dew point 65°F or more10 of 31
- Wet daysat least 0.01 in of rain or melted snow6 of 31
- Notable rainat least 0.10 in4 of 31
- Freezing nightslow 32°F or below0 of 31
Average days per October, counted from daily records for each year 1991-2020.
Rain in October
Normal precipitation is 3.8 in; a dry October brings about 0.8 in and a wet one about 5.3 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.
How October varies from year to year
- Warmest October, 1991-20202015: average high 88°F
- Coolest October2018: average high 77°F
- Wettest October1998: 18.1 in
- Driest October2016: 0.2 in
- Highest reading99°F (October 12, 1991)
- Lowest reading27°F (October 31, 1993)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
October compared with September and November
| September | October | November | |
|---|---|---|---|
| Normal high | 90°F | 82°F | 72°F |
| Normal low | 70°F | 60°F | 50°F |
| Wet days | 7 | 6 | 6 |
| Comfortable days | 1 | 6 | 15 |
| Daylight | 12.3 h | 11.4 h | 10.7 h |
Highs change by -8°F from September and -10°F into November.
Nearby alternatives in October
- Warmer: McAllen, TX223 mi · high 89°F · 6 wet days
How San Antonio ranks in October
- Normal high58th warmest of 378 cities; 11th of 38 in Texas
- Wet days121st driest of 378
- Comfortable days280th most of 340
Heating and cooling
October has 34 heating degree days and 229 cooling degree days (base 65°F), 6% of the year's total heating and cooling demand.
Questions
How hot is San Antonio in October?
The normal high is 82°F and the normal low is 60°F. From 1991 to 2020 the hottest October reading was 99°F (October 12, 1991).
Does it rain a lot in San Antonio in October?
About 6 days in October have at least 0.01 in of precipitation, and the normal total is 3.8 in. The wettest October in 1991-2020 was in 1998 (18.1 in); the driest was in 2016 (0.2 in).
Is October a good time to visit San Antonio?
October ranks 7th of 12 months on our comfort score for San Antonio (53 out of 100). It has about 6 comfortable days and about 6 days at 90°F or hotter. The best months are February, March and November.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: San Antonio Intl Airport (USW00012921), 8.3 mi N of the city center, 789 ft (140 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: San Antonio Kelly AFB (USW00012909), 6.1 mi WSW of the city center, 682 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: San Antonio International Airport (722530-12921), 8.3 mi N of the city center, 799 ft (150 ft higher than the city). Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).