UV Index in George Town, Cayman Islands

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors of George Town, Cayman Islands. With its tropical climate and high UV exposure, knowing the UV levels helps you prevent painful sunburns and protect your skin health. During the hottest hours of the day, especially between 10 AM and 2 PM, UV levels can reach dangerously high levels, peaking at 13, making it essential to stay informed. Whether you're relaxing on the stunning beaches or exploring the vibrant local culture, being aware of the UV Index can help you enjoy the sunshine safely.

Hourly UV Index in George Town

The UV Index begins at a mild level of 1 at 07:00, but as the sun climbs higher, it swiftly escalates. By 10:00, it peaks at a critical 9, reaching a maximum of 13 at 12:00, indicating that protective measures are essential. After noon, the index gradually declines, tapering to 7 by 15:00, before dipping to a 2 by 17:00, and finally settling at 0 by 19:00 as the sun sets. This data highlights the importance of sun safety during the hours when UV exposure is at its highest, particularly around midday.

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	5	moderate	30 min
10:00	9	very high	15 min
11:00	11	extreme	10 min
12:00	13	extreme	10 min
13:00	12	extreme	10 min
14:00	10	very high	15 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 George Town

The UV Index experiences significant fluctuations throughout the year, with the highest levels observed from February to August, where it consistently reaches extreme levels of 11 to 13. March, April, May, June, and August mark the highest-risk months, with 10 minutes being the maximum safe exposure time before burning occurs. January, November, and December represent months of very high UV exposure, with slightly longer burn times of 15 minutes. Visitors and residents are strongly advised to take precautions during these high-risk months by wearing sunscreen, protective clothing, and seeking shade when possible, especially during peak sun hours.

Monthly Maximum UV Index for George Town, Cayman Islands

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in George Town. 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 George Town, 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 George Town UV Index with Other Cayman Islands Cities

The table above highlights how UV exposure in George Town compares to other major locations across Cayman Islands. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

George Town's solar exposure compared to other cities in Cayman Islands. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
George Town	9	11	12	13	13	13	12	13	12	11	9	8
North Side UVI	9	11	12	13	13	13	12	13	12	11	9	8
East End UVI	9	11	12	13	13	13	12	13	12	11	9	8
Bodden Town UVI	9	11	12	13	13	13	12	13	12	11	9	8
West Bay UVI	9	10	12	13	13	13	12	12	12	11	9	8