UV Index in Houston, Texas, United States

· America/Chicago

6.2
High · clear-sky maximum Tuesday, October 20, 2026

At solar noon (01:06:17 PM) the sun reaches 49.7° above the horizon in Houston. Without clouds, that corresponds to a maximum UV index of about 6.2 (high). Clouds usually lower the real value; snow, sand, water and altitude can raise it.

☀️ Sun Safety: When the UV index is high, protect yourself with sunscreen, shade, and a hat. Values of 6 or more indicate increased sunburn risk!

UV index in Houston, next 14 days

DateSun at noonClear-sky maxForecast max
49.7° 6.2 High —
49.4° 6.2 High —
49.0° 6.1 High —
48.7° 6.0 High —
48.3° 5.9 Moderate —
48.0° 5.8 Moderate —
47.6° 5.8 Moderate —
47.3° 5.7 Moderate —
47.0° 5.6 Moderate —
46.6° 5.5 Moderate —
46.3° 5.5 Moderate —
46.0° 5.4 Moderate —
45.7° 5.3 Moderate —
45.3° 5.3 Moderate —

Clear-sky values are calculated from the sun's height at solar noon (cloud-free sky, average ozone). Forecast values from Open-Meteo include clouds and load in your browser.

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The UV index in Houston measures the intensity of ultraviolet radiation reaching the ground. Values below 3 are considered low risk, while 6 and above require sun protection such as sunscreen, sunglasses, and shade. The clear-sky value shows how strong the sun can get on each day; the forecast shows what is expected with clouds. See today's sunrise and sunset times for Houston or discover the best light for photos during the golden hour in Houston.

About Houston

Houston is located in the state of Texas in the United States, where it serves as the seat of Harris County. The municipality, which dates from 1836, covers an area of 1724.5 square kilometers and sits at an elevation of 13 meters. It is situated on Galveston Bay. As of 2020, the city had a population of 2,304,580. Notable local features include the private research institution Rice University, the George Bush Intercontinental Airport, and the University of Houston. The city maintains twin town relationships with Karachi, Cairo, Istanbul, Irapuato, and Huelva.

AI-assisted description based on geographic data and editorial notes.