UV Index in Sak Lek, Thailand

Last updated: July 2, 2025

In Sak Lek, Thailand, understanding the UV Index is crucial for safeguarding your skin and overall health. With intense sun exposure typical of this tropical climate, daily UV levels can reach alarming highs—peaking at 14 during midday hours. Being aware of these levels can help you prevent sunburn, reduce the risk of skin damage, and promote long-term skin health. As you enjoy the beautiful sunny days here, staying informed about the UV Index will empower you to take proper precautions and protect your skin against harmful UV rays.

Hourly UV Index in Sak Lek

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 Sak Lek

The UV Index experiences significant seasonal variation, peaking in the summer months. January starts with a very high UV Index of 9, but by February it escalates to an extreme level of 11. From March through October, the UV Index remains critically high, reaching a maximum of 14 in July, August, and September, while maintaining an extreme exposure category throughout this period. As the year progresses, October sees a slight decline to 13, before dropping again in November to 10 and December to 8, both classified as very high. Visitors and residents are strongly advised to take precautions, particularly during the high-risk months from February through October, where burn times are as short as 10 minutes. To protect your skin, limit sun exposure, wear protective clothing, and apply sunscreen regularly.

Monthly Maximum UV Index for Sak Lek, Thailand

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

The table above highlights how UV exposure in Sak Lek 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.

Sak Lek'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
Sak Lek	9	11	12	13	13	13	14	14	14	13	10	8
Udon Thani UVI	9	11	13	14	14	13	14	14	14	12	10	9
Chon Buri UVI	10	13	14	14	14	13	14	14	13	13	10	9