UV Index in Surat Thani, Thailand

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Surat Thani, Thailand, where the tropical climate can lead to significant sun exposure risks. With UV levels peaking between 10 AM and 2 PM, reaching a maximum of 13, awareness of these measurements can help prevent sunburn and protect skin health. As the sunlight grows stronger, knowing when to limit outdoor activities is vital for safeguarding yourself against harmful UV rays in this beautiful region known for its stunning landscapes and sunny weather. Stay informed and enjoy the sun responsibly!

Hourly UV Index in Surat Thani

As the sun rises, the UV Index starts its slow climb, peaking at 13 between noon and 1 PM, signaling extreme UV exposure. The day begins gently at 7 AM with a minimal index of 1, but by 10 AM, it reaches 9, urging sun-sensitive individuals to seek protection. The highest reading of 13 persists for two hours, making midday the most critical time for sun safety. As the afternoon rolls in, the index gradually decreases, dipping to 7 by 3 PM, and further waning into the evening with values of 4 at 4 PM, 2 at 5 PM, and falling to a comfortable 1 by 6 PM. Finally, the UV Index settles at 0 after sunset, marking the end of a sun-drenched day.

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	5	moderate	30 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	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 Surat Thani

Throughout the year, the UV Index remains consistently high, with extreme exposure levels recorded every month. The months of February to April show the highest UV readings, peaking at 15, indicating significant risks for skin damage with an extremely short burn time of just 10 minutes. Additionally, January and December display slightly lower, yet still extreme levels at 11. Visitors and residents are strongly advised to take precautions during all months, particularly from February to April, when UV levels are at their most intense. Sunscreen application, wearing protective clothing, and seeking shade during peak sun hours are essential to safeguard against harmful UV exposure.

Monthly Maximum UV Index for Surat Thani, Thailand

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

The table above highlights how UV exposure in Surat Thani 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.

Surat Thani'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
Surat Thani	11	13	15	15	14	13	13	14	14	14	12	11