April 30 is generally a great time to visit San Antonio. While there is a slight chance of rain (34%), showers are usually brief. Expect comfortable 29°C weather. As it's peak season for San Antonio, we recommend booking your stay well in advance to secure the best rates.
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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 April 30
"Warm & Sunny. Expect average highs of 29°C. 34% chance of rain."
What to Wear in San Antonio in April
Based on historical data for April 30, San Antonio typically experiences temperatures between 18.1°C and 29°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 34% chance of rain, keeping a raincoat or umbrella handy is a smart move.
Complete Packing Guide
Weekly breakdown & essential items for San Antonio
Smart Suitcase
- T-Shirt
- Light Clothing
- Umbrella
Average High
29°C
Daytime Peak
Average Low
18.1°C
Nighttime Low
Feels Like
32.5°C
🔥 Feels warmer
Rain Chance
34%
Avg 2mm if it rains
Cloud Cover
57%
Light drizzle
Pressure
1011.8 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 83% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30 recommended
06:00 - 10:00
16:00 - 20:00
Type I-II
🔴 17 min to burn
Type III-IV
🟡 26 min to burn
Type V-VI
🟢 43 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
22.7°C
Humid/Sticky
Heat Index
32.5°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
97/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~158
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in San Antonio
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:54
☀️ Noon
13:32
🌇 Sunset
20:10
⏱️ Daylight
13h 16m
Wind Speed
21.4 km/h
Moderate wind
Sunshine
9.6 hrs
Direct Sun (Cloud-free)
Humidity
69%
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
⛅ Good
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 April 30 averages 29°C with a 34% precipitation probability. Wedding/Outdoor Event Score: 89/100."
— 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
April 23
27.6°C • 26% rain
Score
96
April 24
27.7°C • 30% rain
Score
95
April 25
27.9°C • 30% rain
Score
95
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (April 30) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is San Antonio Worth Visiting on April 30?
Planning a trip to San Antonio on April 30? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 29°C with a 34% historical precipitation risk.
✈️ Travel Logistics: Approximately 158 landing slots available daily during this period, indicating manageable crowd levels.
📊 Historical Extremes: The hottest April 30 recorded in the last 30 years saw temperatures hit 30.1°C in 2022, while the coldest dropped to 11.3°C in 2023.