UV Index in Si Thep, Thailand

Last updated: May 3, 2025

Understanding the UV Index in Si Thep, Thailand is crucial for maintaining skin health and preventing sunburn, especially in this region's warm tropical climate. With typical UV levels peaking at 14 around noon, residents and visitors alike should be aware of the risks associated with prolonged exposure to the sun. Knowledge of the UV Index empowers individuals to take protective measures, ensuring their outdoor activities are safe and enjoyable. Whether you're strolling through historical sites or soaking up the local scenery, being informed about UV levels can help guard against harmful rays and promote a healthier lifestyle in Si Thep.

Hourly UV Index in Si Thep

The UV Index starts off low at 07:00 with a gentle 1, perfect for morning activities. As the day progresses, it escalates sharply, peaking at a challenging 14 around 12:00, signaling the need for sun protection. The intensity begins to taper off post-lunch, with readings of 10 at 14:00 and dropping to a milder 4 by 16:00. By the evening hours, from 17:00 onwards, the index declines significantly, returning to a safe 1 by 18:00 and finally hitting 0 at 19:00. It’s a classic sunny day, highlighting the importance of vigilance against UV exposure during peak 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	9	very high	15 min
11:00	12	extreme	10 min
12:00	14	extreme	10 min
13:00	13	extreme	10 min
14:00	10	very high	15 min
15:00	7	high	25 min
16:00	4	moderate	30 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Si Thep

The UV Index varies significantly throughout the year, peaking during the spring and summer months. February through September are identified as high-risk months, where the UV Index reaches levels categorized as extreme (12-14), with burn times as short as 10 minutes. January, November, and December show a slight decrease, with UV levels still classified as very high (9-10) and burn times extending to 15 minutes. Visitors and residents are strongly advised to take precautions during these high-risk months by seeking shade, wearing protective clothing, and using broad-spectrum sunscreen to minimize the risk of UV exposure and potential sunburn.

Monthly Maximum UV Index for Si Thep, Thailand

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

The table above highlights how UV exposure in Si Thep 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.

Si Thep'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
Si Thep	9	12	13	14	14	13	14	14	13	13	10	9
Chon Buri UVI	10	13	14	14	14	13	14	14	13	13	10	9