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📍 Weather Radar - San Antonio

San Antonio Weather Forecast – Complete Guide to Weather Conditions in United States

Looking for accurate San Antonio weather information? You’ve come to the right place! Our comprehensive San Antonio weather forecast provides real-time meteorological data updated every 15 minutes, including current conditions, extended 16-day forecasts, hourly predictions, air quality monitoring, and UV index tracking. Whether you’re planning a trip, preparing for outdoor activities, or simply curious about the weather in San Antonio, United States, this page delivers all the information you need.

Current Weather Conditions in San Antonio

Right now, San Antonio is experiencing Clear Sky conditions. The current temperature is 9°C (feels like 3°C), with today’s high reaching 18°C and a low of 5°C. Perfect conditions for outdoor activities with unlimited visibility and comfortable atmospheric pressure.

Current atmospheric conditions show relative humidity at 50%, barometric pressure at 1029 hPa, and winds blowing at 27 km/h. These conditions are typical for San Antonio during the winter season.

San Antonio 16-Day Weather Forecast

Our extended forecast for San Antonio weather shows varied conditions over the next 16 days. Average high temperatures are expected around 19°C, with lows averaging 8°C. The forecast period anticipates approximately 0mm of precipitation across 0 days with measurable rainfall.

Here’s a quick overview of the upcoming weather in San Antonio:

  • Saturday, Jan 10: Overcast, High 18°C / Low 5°C
  • Sunday, Jan 11: Overcast, High 19°C / Low 0°C
  • Monday, Jan 12: Overcast, High 15°C / Low 4°C
  • Tuesday, Jan 13: Overcast, High 15°C / Low 10°C
  • Wednesday, Jan 14: Mainly Clear, High 25°C / Low 9°C
  • Thursday, Jan 15: Clear Sky, High 16°C / Low 8°C
  • Friday, Jan 16: Overcast, High 23°C / Low 7°C

San Antonio Air Quality Index (AQI)

The current San Antonio air quality index stands at 32, classified as Good. Air quality is satisfactory, and air pollution poses little or no risk. Ideal conditions for all outdoor activities.

Key pollutant readings for San Antonio include:

  • PM2.5 (Fine Particulate Matter): 1.4 µg/m³
  • PM10 (Coarse Particulate Matter): 1.4 µg/m³
  • O₃ (Ozone): 64 µg/m³

UV Index and Sun Protection in San Antonio

Today’s maximum San Antonio UV index is expected to reach 5, considered Moderate. Moderate UV exposure risk. Wear sunscreen SPF 30+, sunglasses, and seek shade during midday hours.

Sunrise in San Antonio occurs at 7:29 AM, with sunset at 5:53 PM, providing approximately 10.4 hours of daylight. Plan outdoor activities during these hours while taking appropriate sun protection measures based on the UV forecast.

Geographic Information for San Antonio

San Antonio is located in United States at coordinates 29.4241° N, 98.4936° W, in the Northern Hemisphere. The city sits at an elevation of approximately 203 meters above sea level.

This geographic position influences San Antonio’s climate patterns, contributing to its characteristic weather throughout the year. The latitude of 29.4241° affects day length variations and solar intensity across seasons, while the longitude of -98.4936° determines the local timezone and weather pattern timing.

San Antonio Climate Overview

Understanding San Antonio climate patterns helps visitors and residents plan activities throughout the year. The current winter season brings its typical weather characteristics to the region.

Weather patterns in San Antonio are influenced by its geographic location in United States, altitude, proximity to bodies of water, and prevailing wind patterns. These factors combine to create the distinctive climate that residents and visitors experience.

Best Time to Visit San Antonio

Planning a trip to San Antonio? The best time to visit San Antonio depends on your preferences and planned activities. Current conditions show 9°C with Clear Sky skies, which is suitable for prepared travelers.

Consider these factors when planning your visit:

  • Temperature preferences: Current highs around 18°C and lows near 5°C
  • Precipitation: 0 days with expected rainfall in the forecast period
  • UV exposure: UV index reaching 5 – Moderate level protection recommended
  • Air quality: Currently Good for outdoor activities

Weather-Based Activity Recommendations for San Antonio

Current Clear Sky conditions in San Antonio offer various activity options. Check hourly forecasts below to plan the best timing for your outdoor plans.

Frequently Asked Questions About San Antonio Weather

What is the weather like in San Antonio today?

Today in San Antonio, expect Clear Sky conditions with a high of 18°C and a low of 5°C. The current temperature is 9°C with 50% humidity.

What is the UV index in San Antonio?

The current UV index in San Antonio is 5, classified as Moderate. Moderate UV exposure risk. Wear sunscreen SPF 30+, sunglasses, and seek shade during midday hours.

Is the air quality good in San Antonio?

The current air quality index (AQI) in San Antonio is 32, rated as Good. Air quality is satisfactory, and air pollution poses little or no risk. Ideal conditions for all outdoor activities.

What is the weather forecast for San Antonio this week?

The 7-day forecast for San Antonio shows average highs of 19°C and lows of 8°C, with 0 days of expected precipitation totaling 0mm.

Additional San Antonio Weather Resources

This page provides comprehensive San Antonio weather data sourced from multiple meteorological services and updated in real-time. For the most accurate forecasts, we utilize:

  • Open-Meteo API – High-resolution weather forecasting
  • Air Quality API – Real-time pollution monitoring
  • UV Index API – Solar radiation measurements
  • Precipitation Radar – Live weather tracking

Bookmark this page for instant access to San Antonio weather forecast information whenever you need it. Data is refreshed every 15 minutes to ensure you always have the latest conditions.

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