UV Index in Wan Yai, Thailand

Last updated: May 3, 2025

Understanding the UV Index in Wan Yai, Thailand is essential for protecting your skin and maintaining overall health. With high UV exposure levels, particularly peaking around noon when they soar to 14, it’s crucial to monitor these readings to prevent sunburn and long-term skin damage. Wan Yai’s tropical climate contributes to intense sunlight, making awareness of UV risks even more important. By keeping an eye on the UV Index, residents and visitors alike can enjoy the sunny outdoors while safeguarding their skin from harmful effects.

Hourly UV Index in Wan Yai

As the sun rises, the UV Index starts at a moderate level of 2 at 7 AM, gradually increasing to a peak of 14 by noon. The intensity is most striking at 11 AM and 12 PM, where exposure becomes critical. After this time, the index begins a gradual decline, dropping to 10 at 2 PM and continuing downwards to a mere 1 by 5 PM. Sun-seekers and outdoor enthusiasts should be especially cautious from 9 AM to 1 PM when the UV levels are at their highest, reaching their zenith with an extreme 11 at 10 AM. Remember to protect your skin under this midday sun!

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	2	low	45 min
08:00	4	moderate	30 min
09:00	7	high	25 min
10:00	11	extreme	10 min
11:00	14	extreme	10 min
12:00	14	extreme	10 min
13:00	13	extreme	10 min
14:00	10	very high	15 min
15:00	6	high	25 min
16:00	3	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 Wan Yai

Throughout the year, the UV Index shows significant fluctuations, indicating varying levels of sun exposure risk. From January to April, UV levels rise sharply, peaking in April at an index of 15, defining it as a month with extreme exposure risk; similar levels prevail in July. The months of February, March, April, June, July, August, September, and October all demonstrate extreme ratings, suggesting that ten minutes of unprotected exposure can lead to sunburn. Notably, February, March, April, and July are the highest-risk months with indices at 12 or above. Conversely, November and December experience a drop to very high ratings at 10 and 9, respectively, where 15 minutes of exposure could result in burns. To protect yourself, it is essential for both visitors and residents to take necessary precautions during high UV months, such as seeking shade, wearing protective clothing, and applying sunscreen regularly.

Monthly Maximum UV Index for Wan Yai, Thailand

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

The table above highlights how UV exposure in Wan Yai 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.

Wan Yai'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
Wan Yai	9	12	14	15	14	13	15	14	14	12	10	9
Chon Buri UVI	10	13	14	14	14	13	14	14	13	13	10	9