UV Index in Ko Yao, Thailand

Last updated: May 3, 2025

In Ko Yao, Thailand, being aware of the UV Index is essential for protecting your skin and overall health while enjoying the island's beauty. Understanding UV levels helps you plan your outdoor activities effectively, allowing you to prevent sunburn and reduce the risk of long-term skin damage. With a tropical climate characterized by intense sun exposure, especially during peak hours when the UV Index can soar as high as 14, it's crucial to stay informed and take appropriate precautions. Keep your skin safe and enjoy the stunning scenery of Ko Yao by checking the UV Index regularly!

Hourly UV Index in Ko Yao

The UV Index readings throughout the day reveal a dynamic pattern of sun intensity. Starting gently at 1 at 07:00, the index climbs steadily, reaching 2 by 08:00. As the morning progresses, the warmth strengthens, peaking at an impressive 14 between 12:00 and 13:00—a clear indication that midday sun calls for serious sun protection! After this high, the index gradually declines, dropping to 11 at 14:00, then tapering off to 7 by 15:00, and further down to 1 by 18:00. Finally, the day fades into evening with a UV Index of 0 at 19:00, reminding us of the protective embrace of the dusk after a radiant day under 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	2	low	45 min
09:00	5	moderate	30 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	7	high	25 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 Ko Yao

Throughout the year, the UV Index remains consistently high, reaching extreme levels from January to November, with values peaking at 15 in March and April. The risk of skin damage is significant, as the burn time is consistently limited to just 10 minutes. The months of February, March, April, May, August, September, and October are particularly high-risk, maintaining UV Index scores of 14 or higher. Residents and visitors are strongly advised to take precautions during these months, such as wearing protective clothing, using broad-spectrum sunscreen, and seeking shade whenever possible. Staying vigilant about UV exposure is essential to protect skin health year-round.

Monthly Maximum UV Index for Ko Yao, Thailand

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

The table above highlights how UV exposure in Ko Yao 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.

Ko Yao'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
Chon Buri UVI	10	13	14	14	14	13	14	14	13	13	10	9
Ko Yao	12	14	15	15	14	13	13	14	14	14	12	11