UV Index in Rattanawapi, Thailand

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents of Rattanawapi, Thailand, where the warm, predominantly tropical climate exposes individuals to varying levels of ultraviolet radiation throughout the day. Being aware of UV levels is essential for preventing sunburn and protecting skin health, as high UV exposure can lead to long-term damage and increase the risk of skin cancer. During the peak hours, especially around noon, the UV Index can soar as high as 15, highlighting the importance of taking precautions. With this guide, you can stay informed about daily UV exposures and enjoy the beautiful Rattanawapi sunshine safely!

Hourly UV Index in Rattanawapi

The UV Index shows a dramatic rise in solar intensity as the morning progresses. Starting at a mere 1 at 07:00, the index climbs steadily, reaching a peak of 15 by noon. As the sun reaches its zenith, from 11:00 to 13:00, it's crucial to take precautions against harmful UV rays, particularly when the index hits 13 and 14. However, relief comes in the afternoon as it begins to dip to 11 at 14:00, eventually dropping to 4 by 16:00 and plummeting to 0 by 19:00. This data highlights the importance of sun safety during the height of the day, especially when the UV Index is at its highest. Stay sun-smart!

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	7	high	25 min
10:00	10	very high	15 min
11:00	13	extreme	10 min
12:00	15	extreme	10 min
13:00	14	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 Rattanawapi

The UV Index experiences significant seasonal variation, peaking during the warmer months. January begins with a UV Index of 9, categorized as very high, allowing a burn time of 15 minutes. As we move into February, the index rises to 11 and remains extreme until April, which registers a peak of 14. The months of May to October maintain this extreme level, with July reaching the highest UV Index of 15. Following this, November and December see a decrease back to very high, with indices at 10 and 9, respectively. Visitors and residents should take extra precautions during the high-risk months of February to October, recommending protective clothing, sunscreen, and limited sun exposure during peak hours to prevent skin damage.

Monthly Maximum UV Index for Rattanawapi, Thailand

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

The table above highlights how UV exposure in Rattanawapi 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.

Rattanawapi'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
Rattanawapi	9	11	13	14	14	14	15	14	14	12	10	9
Chon Buri UVI	10	13	14	14	14	13	14	14	13	13	10	9