UV Index in Lan Sak, Thailand

Last updated: July 2, 2025

Understanding the UV Index is crucial for maintaining skin health in Lan Sak, Thailand, where the tropical climate exposes residents and visitors to strong ultraviolet radiation. With UV levels peaking at an alarming 14 during midday hours, awareness of these fluctuations can help prevent sunburn and long-term skin damage. In such a sun-drenched region, where the average climate is characterized by high temperatures and humidity, knowing when to seek shade or apply sunscreen is essential for enjoying the outdoors safely. Stay informed and protect your skin to fully embrace the beauty of Lan Sak!

Hourly UV Index in Lan Sak

The UV Index begins its ascent at 7:00 AM, starting modestly at 1, but by 9:00 AM, it escalates to a more noticeable 6. The real surge occurs around 11:00 AM, peaking at an intense 12 and reaching its highest point of 14 by noon and 1:00 PM. As the afternoon progresses, the intensity starts to wane, dipping to 11 at 2:00 PM, and then gradually decreasing to 8 by 3:00 PM. As the sun sets, the UV levels drop swiftly, dropping to 4 at 4:00 PM, and ultimately retreating to a mere 1 by 6:00 PM and 0 by 7:00 PM. Throughout the day, it's clear to stay protected during those peak hours when the UV exposure could be most harmful.

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	12	extreme	10 min
12:00	14	extreme	10 min
13:00	14	extreme	10 min
14:00	11	extreme	10 min
15:00	8	very high	15 min
16:00	4	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 Lan Sak

The UV Index demonstrates significant seasonal variability, with peak levels occurring from February to October, where an extreme rating (UV Index 12-14) is prevalent for most months. January and November feature a very high exposure category, while December sees a slight decrease. March through October are particularly concerning, as these months also have the shortest burn time of only 10 minutes. Visitors and residents should exercise caution during these high-risk months by wearing sunscreen, protective clothing, and seeking shade, especially during peak sunlight hours to minimize the risk of UV-related skin damage. Remember, even on cloudy days, UV rays can still cause harm, so stay vigilant year-round.

Monthly Maximum UV Index for Lan Sak, Thailand

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Lan Sak. 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 Lan Sak, 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 Lan Sak UV Index with Other Thailand Cities

The table above highlights how UV exposure in Lan Sak 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.

Lan Sak'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
Lan Sak	10	12	14	14	14	14	14	14	14	13	10	9
Chon Buri UVI	10	13	14	14	14	13	14	14	13	13	10	9