UV Index in Phen, Thailand

Last updated: June 2, 2025

In Phen, Thailand, being aware of the UV Index is crucial for safeguarding your skin and overall health. Understanding UV levels not only helps in preventing sunburn but also plays a vital role in long-term skin health, especially in a region where the sun's intensity can reach alarming levels. With a tropical climate and UV Index readings peaking at 13 during midday, residents and visitors alike should be vigilant about sun exposure. By staying informed about the UV Index in Phen, you can enjoy the beautiful outdoors while keeping your skin protected from harmful rays.

Hourly UV Index in Phen

As the day unfolds, the UV Index rises sharply from the early morning hours. At 07:00, it begins at a gentle 1, indicating minimal risk, but by 09:00, it escalates to 6, suggesting a more cautious approach for those outdoors. The sun reaches its peak intensity at 12:00 with a striking 13, a crucial time to seek shade or apply sunscreen. The index remains high at 12 until 13:00, before it gradually declines through the afternoon. By 15:00, you can expect a safer 6, and as the day wanes, the UV levels drop to 3 by 16:00 and a soothing 1 by 18:00. Finally, the UV radiation subsides to 0 after 19:00, marking a day where sun safety was paramount, especially during the midday hours!

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	10	very high	15 min
11:00	12	extreme	10 min
12:00	13	extreme	10 min
13:00	12	extreme	10 min
14:00	10	very high	15 min
15:00	6	high	25 min
16:00	3	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 Phen

The UV Index experiences significant seasonal changes, peaking during the warmer months from March to October, where the index reaches extreme levels of 13 to 14. The highest risk months are generally from February to September, with burn times as short as 10 minutes during extremes. January and December, while slightly lower at a UV Index of 9, still present a very high risk requiring caution. Visitors and residents should take proactive measures during these high-risk periods, such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade to minimize the risk of skin damage from UV exposure.

Monthly Maximum UV Index for Phen, Thailand

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

The table above highlights how UV exposure in Phen 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.

Phen'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
Phen	9	11	13	14	14	13	14	14	14	12	10	9
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