San Antonio Weather in October
San Antonio in October averages 29°C (84°F) during the day and 16°C (61°F) at night. Keep in mind that quite a bit of rainfall is expected this month.
Rainfall in San Antonio in October
You can typically expect 6 days of rain this month, averaging around 79 mm (3.1 in). The rain this month typically falls in concentrated bursts rather than all-day showers. Expect a few heavier spells rather than constant grey skies.
Temperature in San Antonio in October
October is one of the better months to visit San Antonio. Expect 29°C (84°F) during the day and 16°C (61°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With lows of 16°C (61°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in San Antonio in October
The city usually sees around 220 hours of sunlight, indicating many sunny days , a great month for sightseeing.If you're inclined towards comfortable temperatures and drier conditions, October is a good time to visit San Antonio.
San Antonio Temperature in October
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San Antonio Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in San Antonio - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in San Antonio typically drop from around 31°C (88°F) at the start of October to approximately 26°C (79°F) by the end. Nights are pleasant, with lows typically ranging from 14°C (57°F) to 20°C (68°F).
Average temperatures in October
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in October
Historical weather records for San Antonio in October
Browse day-by-day weather records for San Antonio spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Antonio historical weather extremes in October
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in San Antonio.
- On October 10, 2019, temperatures climbed to 37°C (99°F), marking the warmest October day on record.
Best Places in the United States of America in October
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in October →
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in San Antonio in October
Warm but pleasant conditions in San Antonio in October. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. Wet weather is likely, so pack waterproof gear for multiple rainy days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in San Antonio in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling7/10 -
Walking7/10 -
Camping8/10 -
Outdoor sports7/10
San Antonio 3-Day Forecast
Temperature Rainfall Sunshine Humidity
See the full San Antonio climate overview or explore weather in the United States of America.
Popular in October
Where to go in October - average daytime high across popular destinations.
Miami Beach
29°C (84°F) Orlando
29°C (84°F) Kissimmee
29°C (84°F) Destin26°C (79°F) Los Angeles24°C (75°F) New York City19°C (66°F) Big Bear Lake19°C (66°F) 
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