UV Index in Phayao, Thailand

Last updated: July 2, 2025

Understanding the UV Index is essential for residents of Phayao, Thailand, as it plays a critical role in protecting skin health and preventing sunburn. With the region's Aw climate, the UV levels can soar, particularly around midday when the index peaks at a staggering 14. Being aware of these fluctuations allows locals and visitors alike to take necessary precautions during the sunniest hours, ensuring that fun in the sun doesn’t come at the cost of skin damage. In Phayao, staying informed about UV exposure risks means enjoying the beautiful outdoors while prioritizing your health!

Hourly UV Index in Phayao

The UV Index today showcases a dramatic rise as the sun ascends, starting at a mild 1 at 7:00 AM. By 9:00 AM, it ramps up to 6, hitting 9 by 10:00 AM. The intensity peaks around 12:00 PM with a scorching 14, persisting until 1:00 PM. As the afternoon progresses, the UV Index begins to decline, dropping to 11 by 2:00 PM, then down to 8 at 3:00 PM. By late afternoon, it falls further to 5 at 4:00 PM, and the day winds down with a gentle 2 at 5:00 PM, before cooling off to 1 at 6:00 PM and finally dropping to 0 by 7:00 PM. Remember, mid-day hours are when protection from UV rays is most crucial!

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	13	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	5	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 Phayao

During the year, UV Index levels peak from March to October, with an extreme classification of 12-14 indicating significant risk for harm from unprotected sun exposure. The high-risk months of April through October should be approached with caution, as the burn time drops to just 10 minutes in these periods. Visitors and residents are advised to protect themselves by wearing sunscreen, appropriate clothing, and seeking shade during peak hours, especially from late morning to mid-afternoon when UV intensity is at its highest. Even in November and December, although the UV Index is lower, with values of 10 and 8 respectively, it remains important to exercise sun safety.

Monthly Maximum UV Index for Phayao, Thailand

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

The table above highlights how UV exposure in Phayao 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.

Phayao'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
Phayao	9	10	12	13	14	14	14	14	14	13	10	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