UV Index in Chom Thong, Thailand

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Chom Thong, Thailand, where the sun’s intensity can reach alarming levels, especially in the peak hours. With a tropical Aw climate that amplifies UV exposure, awareness of UV levels is essential for protecting your skin from harmful rays, preventing sunburn, and maintaining long-term skin health. With the UV Index soaring to 14 during midday, it’s imperative to stay informed and take the necessary precautions to enjoy the sunny days safely.

Hourly UV Index in Chom Thong

The UV Index begins its rise at dawn, peaking during midday hours. At 07:00, it starts low at 1, but as the sun climbs higher, it scales up to 14 by 12:00—the most intense exposure time. From 10:00 to 13:00, the UV Index reaches its zenith, peaking at 14. After this, it begins to decline gradually, dropping to 5 by 16:00, and further to 1 by 18:00. Finally, as the day turns to dusk at 19:00, the UV Index falls to a safe 0. Stay mindful of these hours when planning outdoor activities, as the strongest rays demand protective measures!

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.
Time	UVI	Category	Time to Burn
07:00	1	low	45 min
08:00	3	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	13	extreme	10 min
12:00	14	extreme	10 min
13:00	14	extreme	10 min
14:00	12	extreme	10 min
15:00	8	very high	15 min
16:00	5	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Chom Thong

The UV Index varies significantly throughout the year, with the highest levels occurring from February to October. During this period, particularly from March to September, the UV Index consistently reaches between 13 and 14, categorizing it as extreme and demanding a burn time of only 10 minutes. Both January and December exhibit a drop to a very high category with an index of 9, allowing for a slightly longer burn time of 15 minutes. Given these trends, visitors and residents are strongly advised to take precautions during the high-risk months of February through October. It’s essential to wear protective clothing, use broad-spectrum sunscreen, and seek shade during peak sunlight hours to mitigate the risks associated with high UV exposure.

Monthly Maximum UV Index for Chom Thong, Thailand

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Chom Thong. It measures the strength of ultraviolet radiation from the sun and helps assess the risk of sunburn and UV-related health issues.

Data source: Statistical UV Index data for Chom Thong, 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 Chom Thong UV Index with Other Thailand Cities

The table above highlights how UV exposure in Chom Thong compares to other major locations across Thailand. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Chom Thong's solar exposure compared to other cities in Thailand. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Mueang Nonthaburi UVI	10	12	14	13	14	13	14	14	13	12	9	8
Samut Prakan UVI	10	12	14	13	14	13	14	14	13	12	9	8
Bangkok UVI	10	12	14	13	14	13	14	14	13	12	9	8
Udon Thani UVI	9	11	13	14	14	13	14	14	14	12	10	9
Chom Thong	9	11	13	13	14	14	14	14	14	13	10	9
Chon Buri UVI	10	13	14	14	14	13	14	14	13	13	10	9