UV Index in Hallettsville, United States

Last updated: July 2, 2025

Staying informed about the UV Index in Hallettsville, United States, is essential for safeguarding your skin and overall health. Understanding UV levels is crucial for preventing sunburn and reducing long-term risks associated with harmful UV radiation. Hallettsville, with its Cfa climate, experiences significant UV exposure, particularly during peak hours when the index can reach a maximum of 12 around midday. Being aware of these UV levels allows residents and visitors alike to take necessary precautions, ensuring enjoyable and safe outdoor activities under the Texas sun.

Hourly UV Index in Hallettsville

The UV Index throughout the day reveals a dynamic shift in sun intensity. In the early hours, from 7:00 to 9:00, the index remains low at 1 to 3, perfect for a leisurely morning stroll. However, as the sun climbs higher, the UV exposure peaks dramatically at 12:00 with an index of 10, reaching its highest point of 12 at 1:00 PM. This is the critical time for sun safety measures—sunscreen and protective clothing are essential! As the afternoon progresses, the intensity begins to wane, dropping to a 7 by 4:00 PM and further to a gentle 1 by 7:00 PM. Overall, it's a day marked by a sharp rise and gradual decline in UV levels, highlighting the importance of staying shielded during peak hours.

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
12:0010very high15 min
13:0012extreme10 min
14:0011extreme10 min
15:0010very high15 min
16:007high25 min
17:005moderate30 min
18:002low45 min
19:001low45 min

Monthly UV Index Trends in Hallettsville

Throughout the year, UV Index levels exhibit significant seasonal changes, with the highest values occurring from April to August. During this peak period, the UV Index reaches extreme levels of 11 to 12, resulting in a burn time of just 10 minutes. February and March also present high risk with values reaching 8 and 9, respectively. Visitors and residents should be particularly cautious from April to August, ensuring they protect their skin with sunscreen, clothing, and shade, especially during midday hours. For the rest of the year, while the risk decreases to moderate or high, it remains important to remain vigilant, particularly in September and October when the UV Index is still notably high. Prioritizing sun safety year-round is essential for minimizing harmful UV exposure.

Monthly Maximum UV Index for Hallettsville, United States

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Hallettsville. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec589111112121210975
Data source: Statistical UV Index data for Hallettsville, 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 Hallettsville UV Index with Other United States Cities

The table above highlights how UV exposure in Hallettsville 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.
Hallettsville'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
Hallettsville589111112121210975
Houston UVI589111112121110975