UV Index in Rattanaburi, Thailand

Last updated: July 2, 2025

Understanding the UV Index in Rattanaburi, Thailand, is crucial for protecting your skin and overall health. With the region's tropical climate, sun exposure can lead to serious risks such as sunburn and long-term skin damage. Monitoring UV levels, especially during peak hours where indices can soar to 14 around noon, helps you take proactive measures to safeguard your skin. Being aware of Rattanaburi's typical UV exposure is essential for enjoying the beauty of the outdoors while minimizing health risks associated with excessive sun exposure. Don't let the sun catch you off guard; stay informed and protect yourself effectively!

Hourly UV Index in Rattanaburi

At dawn, the UV Index starts off low at 1 at 07:00, gradually climbing as the sun ascends. By 08:00, it reaches 3, hinting at the day's potential. The real intensity kicks in at 09:00 with a UV Index of 6, but it’s not until 10:00 that we see a peak at 10—a clear signal to apply sun protection. The index continues to rise, hitting its maximum at 12:00 with a scorching 14, before slowly tapering off through the afternoon. By 15:00, it drops to 7, then declines further to 4 at 16:00, and by evening, it cools down to 1 at 17:00. As the sun sets, the UV Index drops to 0 by 19:00, making it a safe time to enjoy outdoor activities without concern for sun exposure.

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	13	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 Rattanaburi

The UV Index exhibits significant seasonal fluctuations, with high-risk months occurring primarily between February and September, where values peak at 15 in May. This places these months in the extreme exposure category, indicating a burn time of just 10 minutes for unprotected skin. In contrast, January, November, and December see lower UV indices categorized as very high, allowing slightly longer burn times of 15 minutes. To protect yourself, whether you're a visitor or resident, it's crucial to take precautions during these months: seek shade, wear protective clothing, and use broad-spectrum sunscreen with a high SPF, especially during midday when UV radiation is at its peak.

Monthly Maximum UV Index for Rattanaburi, Thailand

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

The table above highlights how UV exposure in Rattanaburi 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.

Rattanaburi'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
Rattanaburi	10	13	14	14	15	13	14	14	14	13	10	9