UV Index in Koah Thum, Cambodia

Last updated: July 2, 2025

In Koah Thum, Cambodia, awareness of the UV Index is crucial for protecting yourself from harmful solar radiation. Understanding UV levels helps to prevent sunburn and maintain skin health, especially in a region known for its tropical climate, where the sun can be intense. With UV Index values peaking at a staggering 14 around noon, residents and visitors alike should be vigilant, taking necessary precautions during the day to minimize exposure and safeguard their well-being. Embrace the sun wisely, and stay informed!

Hourly UV Index in Koah Thum

As the sun rises, the UV Index begins its ascent, starting at a mild 1 at 07:00. By 08:00, it climbs to 3, indicating a cautious need for sun protection. The real intensity kicks in by 09:00, reaching 6, and peaks at a striking 14 at 12:00—the hour when the sun is at its zenith. With readings of 13 still prevalent from 11:00 to 13:00, it’s a vital time to stay protected! As afternoon settles in, the UV levels gradually taper off; they dip to 6 by 15:00 and descend further to 3 at 16:00. By evening, the risk diminishes significantly with a return to 1 at 17:00, rounding off the day as twilight approaches with a 0 reading by 19:00. Stay safe in the sun!

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	10	very high	15 min
11:00	13	extreme	10 min
12:00	14	extreme	10 min
13:00	13	extreme	10 min
14:00	10	very high	15 min
15:00	6	high	25 min
16:00	3	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Koah Thum

Throughout the year, the UV Index varies significantly, with high-risk months occurring from February to November, where the UV Index reaches extreme levels of 14 to 15. The highest UV exposure occurs in March, April, and May, maintaining an extreme classification and a dangerously short burn time of just 10 minutes. Visitors and residents are urged to take extra precautions during these months, including wearing protective clothing, applying sunscreen regularly, and seeking shade when outdoors. As the UV Index drops slightly in January and December to 10, it remains in the very high category, emphasizing the need for vigilance even in the winter months. For a safe outdoor experience, it's crucial to monitor UV levels and prioritize skin protection year-round.

Monthly Maximum UV Index for Koah Thum, Cambodia

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Koah Thum. 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 Koah Thum, 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 Koah Thum UV Index with Other Cambodia Cities

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

Koah Thum's solar exposure compared to other cities in Cambodia. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Battambang UVI	10	13	15	14	14	13	14	14	14	13	11	10
Siem Reap UVI	10	13	15	14	14	13	14	14	14	12	11	10
Phnom Penh UVI	10	14	15	15	14	13	14	14	14	13	11	10
Koah Thum	10	14	15	15	15	13	14	14	14	13	11	10
Takeo UVI	10	14	15	15	15	13	14	14	14	13	11	10
Sihanoukville UVI	11	14	15	15	14	13	14	14	14	13	11	11