UV Index in Wiang Chai, Thailand

Last updated: June 2, 2025

In the sunny locale of Wiang Chai, Thailand, staying aware of the UV Index is crucial for maintaining skin health and preventing sunburn. As this region experiences a tropical climate with significant UV exposure, understanding the daily UV levels can help you protect yourself from the harmful effects of the sun. With peak indices reaching as high as 13 around midday, it's essential to be vigilant and take necessary precautions, especially during outdoor activities. By monitoring the UV Index, residents and visitors alike can enjoy the beautiful sunshine while safeguarding their skin’s wellbeing.

Hourly UV Index in Wiang Chai

At dawn, the sun begins its ascent with a UV Index of 1 at 07:00, gradually rising throughout the morning. By 09:00, it hits a moderate 6, urging early risers to slather on sunscreen. The peak intensity arrives around noon with a sizzling UV Index of 13, warning everyone to seek shade or don protective clothing. As the afternoon progresses, the numbers begin to dip, hitting 11 at 14:00 before steadily declining into the evening, where it plummets to a mere 1 by 18:00. Finally, as night falls by 19:00, the UV Index drops to 0, signaling the end of a sun-soaked day. Stay vigilant; the midday sun demands respect!

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	13	extreme	10 min
13:00	13	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 Wiang Chai

The UV Index demonstrates significant seasonal fluctuations, with the highest values occurring from March to October. During this period, UV Index values reach up to 14, categorizing the exposure level as extreme, which means that unprotected skin can burn in as little as 10 minutes. March, April, July, August, September, and October are particularly high-risk months for UV exposure. Conversely, high risk persists in January and February, with an index of 9 and 10, respectively, necessitating 15 minutes of burn time. To protect yourself and enjoy outdoor activities safely, residents and visitors are advised to apply broad-spectrum sunscreen, wear protective clothing, and seek shade during peak hours, especially from late morning to mid-afternoon when UV radiation is at its highest.

Monthly Maximum UV Index for Wiang Chai, Thailand

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

The table above highlights how UV exposure in Wiang Chai 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.

Wiang Chai'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
Wiang Chai	9	10	13	13	14	13	14	14	14	13	9	8
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