May 25 is generally a great time to visit San Antonio. While there is a slight chance of rain (31%), showers are usually brief. Expect comfortable 32°C weather. As it's peak season for San Antonio, we recommend booking your stay well in advance to secure the best rates. Note: May 25 is Memorial Day in San Antonio, so expect special events, closures, and festive atmosphere.
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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 May 25
"Warm & Sunny. Expect average highs of 31.7°C. 31% chance of rain."
What to Wear in San Antonio in May
Based on historical data for May 25, San Antonio typically experiences temperatures between 21.7°C and 31.7°C. We recommend packing t-shirt, light clothing, umbrella to stay comfortable. With a 31% 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
31.7°C
Daytime Peak
Average Low
21.7°C
Nighttime Low
Feels Like
40.6°C
🔥 Heat index effect
Rain Chance
31%
Avg 2.8mm if it rains
Cloud Cover
60%
Light drizzle
Pressure
1011.8 hPa
Low 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 92% 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
🔴 14 min to burn
Type III-IV
🟡 21 min to burn
Type V-VI
🟢 35 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
26.2°C
Humid/Sticky
Heat Index
40.6°C
Feels hotter
😕 Best outdoor time:
Early morning (6-9 AM) or evening (after 6 PM)
Travel & Logistics Insights
Local Calendar
Holiday
Memorial Day
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
06:38
☀️ Noon
13:32
🌇 Sunset
20:26
⏱️ Daylight
13h 48m
Wind Speed
19.6 km/h
Gentle breeze
Sunshine
10.7 hrs
Direct Sun (Cloud-free)
Humidity
73%
Humid / Damp
Travel Intelligence
Exclusive flight analytics & health data for San Antonio
Smart Flight Estimator
Airport-to-Airport Logistics
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Add your home location in settings to see airport details.
Travel Health & Safety in San Antonio
Travel Comfort Index
Real-time tourism conditions
Weather Quality
⛅ Good
Tourist Crowds
🟡 Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Mild discomfort possible for arthritic conditions.
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 May 25 averages 31.7°C with a 31% precipitation probability. Wedding/Outdoor Event Score: 85/100."
— 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
June 1
32°C • 29% rain
Score
94
May 20
31°C • 24% rain
Score
89
May 18
31°C • 27% rain
Score
88
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (May 25) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is San Antonio Worth Visiting on May 25?
Planning a trip to San Antonio on May 25? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 31.7°C with a 31% historical precipitation risk.
🎉 Local Event: The date coincides with Memorial Day, which may influence local business hours and event availability.
✈️ Travel Logistics: Approximately 158 landing slots available daily during this period, indicating manageable crowd levels.
📊 Historical Extremes: The hottest May 25 recorded in the last 30 years saw temperatures hit 36.2°C in 2024, while the coldest dropped to 16.9°C in 2017.