Weather in San Antonio Today
Current temperature in San Antonio: 30°C (86°F). Sunny. Today's high 38°C (100°F), low 25°C (77°F).
Today's Daylight Forecast
Moon & Islamic Calendar
High UV apply sunscreen before heading out. A hat or sun umbrella is recommended during peak hours.
5-Day Weather Forecast
Full 15-Day ForecastAtmospheric Details
Today vs Normal
The long-term average high for today is 33°C.
18 of the last 19 days with published data ran above normal.
It continues that pattern - today's forecast is also running above normal.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.
Health & Activity Advice
UV index is 8 today — high. Apply sunscreen before heading out, and consider a hat or shade during peak hours (roughly late morning to mid-afternoon).
Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.
Morning before 10 AM or evening after 4 PM is the more comfortable window for outdoor activity today.
Nearby Regional Outlook
San Antonio Weather Radar
Live precipitation · Cloud cover · Wind
Frequently Asked Questions
What is the hottest month in San Antonio?
The hottest month in San Antonio is typically August, with daytime highs averaging around 35.6°C (96°F), based on 10 years of historical weather data. Overnight lows during this period average near 25.1°C (77°F). Take extra precautions during this time stay hydrated and avoid strenuous outdoor activity in peak afternoon heat.
What is the coldest month in San Antonio?
The coldest month in San Antonio is typically January, with overnight lows averaging around 6.7°C (44°F) and daytime highs near 17.3°C (63°F), based on 10 years of historical weather data.
Does San Antonio have a rainy season?
San Antonio doesn't have a sharply defined rainy season rainfall is fairly spread across the year based on 10 years of historical data. May is the wettest month on average (about 165 mm), while January is the driest (about 52 mm).
What's the best time of year to visit San Antonio?
The best time to visit San Antonio is typically November, when daytime highs average a comfortable 22.4°C (72°F). Rainfall during this window averages around 62 mm, one of the lighter, more comfortable stretches of the year. This is based on 10 years of historical weather data.
Is San Antonio's air quality safe right now?
As of the latest reading, San Antonio's air quality index (AQI) is 21, rated "Good", based on the nearest monitoring station. Air quality is considered satisfactory, with little to no health risk.