UV Index in Brenham, United States

Last updated: June 2, 2025

Understanding the UV Index in Brenham, Texas is essential for protecting your skin and overall health from the sun's harmful rays. With peak UV levels often reaching 11 and 12 during the midday hours, being aware of these numbers can significantly aid in preventing sunburn and long-term skin damage. Brenham's humid subtropical climate means that residents and visitors alike need to take extra precautions against UV exposure, particularly during the hotter months. Stay informed about the UV Index to enjoy the vibrant outdoors while safeguarding your skin's health!

Hourly UV Index in Brenham

As the day unfolds, the UV Index begins low in the morning, peaking sharply around 12:00 PM with a striking 11. From there, it maintains a high level, reaching a maximum of 12 at 1:00 PM, before gradually falling as the afternoon progresses. By 3:00 PM, it dips to 9, signaling a decline in intensity. As evening approaches, the index returns to a more manageable 2 by 6:00 PM, ultimately settling at 1 as the sun sets. Remember to protect your skin, especially during those peak hours when the UV intensity reaches its highest levels!

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
TimeUVICategoryTime to Burn
07:001low45 min
08:001low45 min
09:003moderate30 min
10:005moderate30 min
11:008very high15 min
12:0011extreme10 min
13:0012extreme10 min
14:0011extreme10 min
15:009very high15 min
16:007high25 min
17:004moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Brenham

Throughout the year, UV index levels exhibit significant seasonal changes, with the highest risk occurring from March to September. The months of April, May, June, and July all reach an extreme UV index of 11 or 12, necessitating a burn time of just 10 minutes. Visitors and residents should take extra precautions during these high-risk months by wearing protective clothing, applying sunscreen regularly, and seeking shade during peak sun hours. Conversely, January and December are classified as moderate with a UV index of 5, allowing for longer exposure times of 30 minutes, while February and October present very high UV index levels. It's essential to remain vigilant year-round, but particularly during the peak summer months, to safeguard against harmful UV radiation.

Monthly Maximum UV Index for Brenham, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Brenham. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec589111112121110865
Data source: Statistical UV Index data for Brenham, based on information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

Compare Brenham UV Index with Other United States Cities

The table above highlights how UV exposure in Brenham compares to other major locations across United States. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.
Brenham's solar exposure compared to other cities in United States. Generated using Copernicus Atmosphere Monitoring Service information.
 JanFebMarAprMayJunJulAugSepOctNovDec
Chicago UVI34689101098642
Brooklyn UVI35681010998642
New York City UVI35681010998642
Los Angeles UVI46891011111010754
Brenham589111112121111865
Houston UVI589111112121110975