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San Antonio Weather in October
October in San Antonio brings high temperatures, with daytime highs of 24°C (75°F) and nights around 19°C (66°F). The excellent weather makes it a solid choice for a visit.
Rainfall in San Antonio in October
You can expect rain on roughly 11 days based on historical data, averaging 49 mm (1.9 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in San Antonio in October
The temperature in San Antonio in October is excellent. Daytime highs reach 24°C (75°F), with nights dropping to 19°C (66°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights cool down to 19°C (66°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in San Antonio in October
There are approximately 207 hours of sunshine this month, resulting in mostly clear days.
Average water temperature in October
With water at 23°C (73°F), you can expect warm, pleasant conditions for any water activity. There's no adjustment period, it feels comfortable straight away.If you're inclined towards comfortable temperatures and drier conditions, October is a good time to visit San Antonio.
San Antonio Temperature in October
Min Temperature
19°C (66°F)
Max Temperature
24°C (75°F)
Water Temperature
23°C (73°F) *
Chance of Rain
35%
Precipitation
49 mm (1.9 in)
Rainy days
11 days
Humidity
74% *
Sunshine
207 hours *
Percentage Sunshine
57% *
* Data from: Ibiza, Spain (14 KM, 8 Miles).
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 25°C (77°F) at the start of October to approximately 22°C (72°F) by the end. Nights are pleasant, with lows typically ranging from 15°C (59°F) to 18°C (64°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 weather observations in San Antonio between 1976 and 2025, these are the recorded extremes during October.
- The hottest October day on record in San Antonio reached 32°C (90°F) (October 21, 2014).
- On October 6, 1996, San Antonio saw its coldest October day with temperatures maxing out at 14°C (57°F).
- Nighttime temperatures dropped to 7°C (45°F) on October 29, 2012, marking the coldest October night on record.
Best Places in Spain in October
Find out more about the weather in Spain and which places have the best travel conditions in this month. See all of Spain in October →
perfect weather
pleasant
tolerable
unpleasant
poor
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
For San Antonio in October, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Rain is likely on several days, so bring a good rain jacket. Expect water temperatures of around 23°C (73°F), which is ideal for taking a refreshing dip. Bring swimwear and consider packing a towel for drying off. 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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Swimming10/10 -
Cycling10/10 -
Walking10/10 -
Barbeque9/10 -
Camping10/10 -
Outdoor sports10/10
San Antonio 3-Day Forecast
More climate data for San Antonio
Temperature Rainfall Sunshine Humidity Water Temp
See the full San Antonio climate overview or explore weather in Spain.
Popular in October
Where to go in October - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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