UV Index in Ranong, Thailand

Last updated: May 3, 2025

Understanding the UV Index is crucial for residents and visitors in Ranong, Thailand, especially given the region's tropical climate characterized by high humidity and intense sun exposure. With UV levels peaking in the afternoon, it’s essential to be aware of the risks of sunburn and long-term skin health. From the morning calm to the intense midday sun, the UV Index in Ranong can reach alarming heights, highlighting the need for proper sun protection. By staying informed about UV levels, you can enjoy all that Ranong has to offer while safeguarding your skin from harmful effects.

Hourly UV Index in Ranong

As the sun rises, the UV Index begins at a gentle 1 at 7:00 AM, perfect for a morning stroll. By 8:00 AM, it ramps up to 3, a signal to start thinking about sun protection. The real intensity kicks in at 9:00 AM, with a sharp rise to 6, marking a transition to more serious UV exposure. The peak of the day comes at 12:00 PM and 1:00 PM, where the UV Index soars to a striking 14—what a powerful reminder to seek shade and apply sunscreen! As the afternoon progresses, the index gradually declines; by 4:00 PM, it drops to 4, and by 6:00 PM, it returns to a mild 1. Finally, as the day winds down, the UV index dips to 0 by 7:00 PM, signaling a safe end to outdoor activities. Stay aware and enjoy the sunshine responsibly!

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	13	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 Ranong

Throughout the year, the UV Index exhibits high levels of intensity, with extreme exposure categories from January to November, culminating in the highest readings in March and April at 15. The risk of harmful UV exposure remains significant even in December and January, with an index of 11. Particularly hazardous months for sun exposure are February through April, consistently reaching critical levels. Residents and visitors are advised to take precautionary measures during these months, such as wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade, especially during peak sunlight hours. Remember: even on cloudy days, UV rays can penetrate and cause skin damage. Always prioritize sun safety!

Monthly Maximum UV Index for Ranong, Thailand

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

The table above highlights how UV exposure in Ranong 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.

Ranong'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
Ranong	11	14	15	15	14	14	14	14	14	14	12	11