San Marcos UV Index Today
- Current UV Index5.0
- Peak UV Index7.0
- Temperature22.5 ℃
- Peak UV at 1 PM
- Protection Recommended ☀️
Last updated:
The UV index in San Marcos, Texas, United States 
will reach a high of 5 today. This means a normal level of sun exposure. See our tips below to stay safe!
Hourly Forecast Chart
Today's Safety Tips
Check the live data above for the current conditions and stay safe in the sun!
San Marcos's UV Index
San Marcos, Texas, typically experiences a UV index ranging from moderate to very high, especially during the summer months when the sun is strongest. UV levels can reach 8 to 10 or more on sunny days.
Weather Seasons
The weather in San Marcos shows hot summers with temperatures often above 90°F (32°C) and mild winters, rarely dropping below freezing. Spring and fall are warm and pleasant, with occasional rainfall peaking in spring.
San Marcos's Climate
Compared to other parts of Texas and nearby states like Oklahoma and Louisiana, San Marcos has more humidity and warmer temperatures in summer. It is generally hotter and sunnier than northern states but less extreme than desert areas in West Texas.
Hourly UV Index Trend
See the UV index hour by hour for San Marcos. When the level is high, it's smart to find some shade.
- TimeUVLevelTemp
- 12 PM5.0moderate22 ℃
Nearby Cities
Check the UV index in other cities near San Marcos.