October 9 is generally a great time to visit San Antonio. While there is a slight chance of rain (21%), showers are usually brief. Expect comfortable 29°C weather. San Antonio is currently in its most popular travel window, meaning vibrant crowds and premium pricing.
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Essential Travel Info for San Antonio
Currency
USD
$ United States dollar
Language
English
Driving
Right side
Connect
As of Dec 2021, San Antonio has 5G from ...
Safety
Moderate Safety
GPI: 2.44
San Antonio Weather Forecast for October 9
"Warm & Sunny. Expect average highs of 28.9°C. 21% chance of rain."
What to Wear in San Antonio in October
Based on historical data for October 9, San Antonio typically experiences temperatures between 18.9°C and 28.9°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (21% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for San Antonio
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
28.9°C
Daytime Peak
Average Low
18.9°C
Nighttime Low
Feels Like
31.5°C
🔥 Feels warmer
Rain Chance
21%
Avg 1.9mm if it rains
Cloud Cover
42%
Overcast
Pressure
1015.7 hPa
Medium volatility
San Antonio Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 95% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 42 min to burn
Type III-IV
🟡 63 min to burn
Type V-VI
🟢 105 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
21.4°C
Humid/Sticky
Heat Index
31.5°C
Feels hotter
🙂 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in United States
Flight Traffic
High
83/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~135
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in San Antonio
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
07:32
☀️ Noon
13:22
🌇 Sunset
19:11
⏱️ Daylight
11h 39m
Wind Speed
15.1 km/h
Gentle breeze
Sunshine
8.8 hrs
Direct Sun (Cloud-free)
Humidity
64%
Slightly humid
Travel Intelligence
Exclusive flight analytics & health data for San Antonio
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in San Antonio
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Moderate fluctuations. Some sensitivity possible.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Rare minor tremors. Buildings are earthquake-resistant.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, San Antonio on October 9 averages 28.9°C with a 21% precipitation probability. Wedding/Outdoor Event Score: 96/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
San Antonio Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
October 3
30.7°C • 14% rain
Score
100
October 4
30.6°C • 13% rain
Score
100
October 5
30.2°C • 13% rain
Score
100
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (October 9) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is San Antonio Worth Visiting on October 9?
Planning a trip to San Antonio on October 9? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 28.9°C with a 21% historical precipitation risk.
✈️ Travel Logistics: Approximately 135 landing slots available daily during this period, indicating manageable crowd levels.
📊 Historical Extremes: The hottest October 9 recorded in the last 30 years saw temperatures hit 33.8°C in 2024, while the coldest dropped to 15.4°C in 2023.