UV Index in Tamuning-Tumon-Harmon Village, Guam

Last updated: May 3, 2025

Understanding the UV Index in Tamuning-Tumon-Harmon Village, Guam is crucial for protecting your skin in this tropical paradise. High UV levels, particularly around midday, pose risks of sunburn and long-term skin damage, making awareness essential for residents and visitors alike. Given the area's Af climate, characterized by warm temperatures and plenty of sunshine, knowing when to seek shade or apply sunscreen can make all the difference. With peak UV Index values reaching as high as 13 during afternoon hours, being informed about these levels will help you enjoy the beautiful outdoors safely while maintaining healthy skin.

Hourly UV Index in Tamuning-Tumon-Harmon Village

As the sun climbs higher, the UV Index reaches its peak intensity around 12:00 PM, soaring to a striking 13—a clear signal for outdoor enthusiasts to take precautions. The morning hours start gently, with a low of 1 at 07:00 AM, gradually escalating to 6 by 09:00 AM and hitting 9 at 10:00 AM. By 11:00 AM, the sun begins to assert itself with a 12. However, as the afternoon progresses, the UV intensity starts to wane, dropping to 10 at 2:00 PM, and tapering off to a mere 2 by 5:00 PM. As daylight diminishes, the UV Index dwindles to 0 by 7:00 PM, inviting a much-needed respite from the sun’s relentless rays. Always be vigilant and protect your skin during those peak hours!

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	12	extreme	10 min
12:00	13	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	2	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Tamuning-Tumon-Harmon Village

The UV Index exhibits extreme levels throughout the year, with consistent ratings between 11 and 15 from January to September. The highest UV Index of 15 occurs in March, April, and September, marking these as the high-risk months for sun exposure. Visitors and residents should be particularly cautious during these months, as the burn time is as short as 10 minutes across all months listed, indicating a significant risk of skin damage. To ensure safety, it is crucial to use adequate sun protection, such as broad-spectrum sunscreen, protective clothing, and seeking shade, especially during peak sun hours.

Monthly Maximum UV Index for Tamuning-Tumon-Harmon Village, Guam

The monthly maximum UV Index (UVI) represents the highest UV radiation level recorded each month in Tamuning-Tumon-Harmon Village. 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 Tamuning-Tumon-Harmon Village, 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 Tamuning-Tumon-Harmon Village UV Index with Other Guam Cities

The table above highlights how UV exposure in Tamuning-Tumon-Harmon Village compares to other major locations across Guam. This comparison helps travelers and residents better understand regional sun intensity and plan outdoor activities with sun safety in mind.

Tamuning-Tumon-Harmon Village's solar exposure compared to other cities in Guam. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Tamuning-Tumon-Harmon Village	11	13	15	15	13	14	14	14	15	13	12	11
Barrigada Village UVI	11	13	15	15	13	14	14	14	15	13	12	11
Mangilao Village UVI	11	13	15	15	13	14	14	14	15	13	12	11
Yigo Village UVI	11	13	15	15	13	14	14	14	15	13	12	11
Dededo Village UVI	11	13	15	15	13	14	14	14	15	13	12	11