July 21 is statistically one of the best days of the year in Austin. With minimal rain risk (11%) and pleasant highs of 35°C, it's ideal for outdoor adventures. Expect a bustling atmosphere in Austin right now—this is when the city truly comes alive with visitors.
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Essential Travel Info for Austin
Currency
USD
$ United States dollar
Language
English
Driving
Right side
Safety
Moderate Safety
GPI: 2.44
Austin Weather Forecast for July 21
"Warm & Sunny. Expect average highs of 35.3°C. 11% chance of rain."
What to Wear in Austin in July
Based on historical data for July 21, Austin typically experiences temperatures between 24.7°C and 35.3°C. We recommend packing t-shirt, light clothing to stay comfortable. Trends suggest it will stay mostly dry (11% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Austin
Smart Suitcase
- T-Shirt
- Light Clothing
Average High
35.3°C
Daytime Peak
Average Low
24.7°C
Nighttime Low
Feels Like
47°C
🔥 Heat index effect
Rain Chance
11%
Avg 0.4mm if it rains
Cloud Cover
43%
Overcast
Pressure
1015 hPa
Low volatility
Austin Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
🎯 This date historically delivers consistent weather 97% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 30+ required, seek shade
05:00 - 10:00
16:00 - 19:00
Type I-II
🔴 12 min to burn
Type III-IV
🟡 18 min to burn
Type V-VI
🟢 30 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
26.9°C
Humid/Sticky
Heat Index
47°C
Feels hotter
😕 Best outdoor time:
Early morning (6-9 AM) or evening (after 6 PM)
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in United States
Flight Traffic
High
91/100 pressure index
Health Advisory
Healthy
Routine only • View Details →
Landing Slots
~342
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Austin
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
05:43
☀️ Noon
12:38
🌇 Sunset
19:32
⏱️ Daylight
13h 48m
Wind Speed
17.1 km/h
Gentle breeze
Sunshine
11.8 hrs
Direct Sun (Cloud-free)
Humidity
62%
Slightly humid
Travel Intelligence
Exclusive flight analytics & health data for Austin
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Austin
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🔴 Very Busy
Price Level
💰💰💰 Expensive
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is excellent. Perfect for outdoor activities.
Regional Safety Profile
Seismic Activity
Zero seismic activity detected in 30 years.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Austin on July 21 averages 35.3°C with a 11% precipitation probability. Wedding/Outdoor Event Score: 91/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Austin Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
July 16
34.8°C • 14% rain
Score
93
July 17
34.9°C • 11% rain
Score
92
July 18
35°C • 10% rain
Score
92
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (July 21) in other destinations
🌍 Explore the same date in different destinations around the world
📍 Is Austin Worth Visiting on July 21?
Planning a trip to Austin on July 21? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year typically offers vibrant summer conditions averaging 35.3°C with a 11% historical precipitation risk.
✈️ Travel Logistics: Approximately 342 landing slots available daily during this period, indicating manageable crowd levels.
📊 Historical Extremes: The hottest July 21 recorded in the last 30 years saw temperatures hit 39.7°C in 2018, while the coldest dropped to 22.1°C in 2021.