UV Index in Chaiya, Thailand

Last updated: July 2, 2025

In Chaiya, Thailand, understanding the UV Index is crucial for safeguarding your skin from the sun's harmful rays. With the local climate being characterized by a tropical monsoon, high UV levels are often a daily reality, especially between 10 AM and 2 PM when the index peaks at an alarming 14. Being aware of UV levels is essential not only for preventing painful sunburns but also for ensuring long-term skin health and reducing the risk of serious conditions like skin cancer. Take a moment to monitor the UV Index, especially during those peak hours, to enjoy the beautiful Chaiya sunshine safely!

Hourly UV Index in Chaiya

At dawn, as the sun rises at 07:00, the UV Index is a modest 1, perfect for a leisurely morning stroll. By 08:00, it creeps up to 2, maintaining a gentle warmth. The real sunbathing begins around 09:00 with a notable jump to 5. However, it’s from 10:00 to 12:00 that the sun truly takes center stage, reaching its peak at a sizzling 14 at noon. As the afternoon unfolds, the intensity slightly wanes, dropping to 11 by 14:00 and winding down to 4 by 16:00. As the sun dips lower, the UV Index falls to 2 at 17:00 and finally retreats to 0 by 19:00, signaling the end of the day. Be sun-smart and enjoy the sunshine safely!

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	2	low	45 min
09:00	5	moderate	30 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	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 Chaiya

The UV Index demonstrates significant seasonal changes, with consistently high levels of ultraviolet radiation from January through November, peaking at 15 in March and April. The months of February through September are particularly high-risk, marked by an extreme exposure category and a burn time of only 10 minutes. Visitors and residents are strongly advised to take necessary precautions, such as wearing sunscreen, protective clothing, and seeking shade during these months, especially during midday hours when UV radiation is at its peak. In December and January, while the UV Index slightly decreases to 11, caution should still be exercised to prevent skin damage.

Monthly Maximum UV Index for Chaiya, Thailand

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

The table above highlights how UV exposure in Chaiya 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.

Chaiya'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
Chaiya	11	14	15	15	14	13	14	14	14	14	12	11