UV Index in Sai Ngam, Thailand

Last updated: July 2, 2025

In Sai Ngam, Thailand, understanding the UV Index is crucial for protecting your skin and overall health. As the day progresses, UV levels can soar, reaching a peak of 14 around noon, making effective sun protection imperative for residents and visitors alike. Being aware of these UV levels can help prevent sunburn and long-term skin damage, particularly in a region characterized by its tropical climate. With the sun's intensity rising sharply throughout the morning and peaking in the afternoon, it's essential to stay informed and take appropriate precautions to enjoy the beautiful weather while safeguarding your skin.

Hourly UV Index in Sai Ngam

The UV Index begins its ascent at 7:00 AM, starting modestly at 1, but by 9:00 AM, it escalates to a more noticeable 6. The real surge occurs around 11:00 AM, peaking at an intense 12 and reaching its highest point of 14 by noon and 1:00 PM. As the afternoon progresses, the intensity starts to wane, dipping to 11 at 2:00 PM, and then gradually decreasing to 8 by 3:00 PM. As the sun sets, the UV levels drop swiftly, dropping to 4 at 4:00 PM, and ultimately retreating to a mere 1 by 6:00 PM and 0 by 7:00 PM. Throughout the day, it's clear to stay protected during those peak hours when the UV exposure could be most harmful.

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	14	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 Sai Ngam

Throughout the year, the UV Index experiences significant fluctuations, highlighting high-risk months primarily from February to October, where the index consistently reaches extreme levels of 12 or higher. Notably, May to September sees the peak UV Index at 14, with burn time reduced to only 10 minutes. January, November, and December still present very high risk conditions, with a burn time of 15 minutes, though the UV Index decreases to 9 or 10. Visitors and residents should take precautionary measures during these peak months, such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during midday hours to minimize the risk of UV-related skin damage.

Monthly Maximum UV Index for Sai Ngam, Thailand

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

The table above highlights how UV exposure in Sai Ngam 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.

Sai Ngam'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
Sai Ngam	9	12	13	13	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