UV Index in Colonia, Micronesia

Last updated: July 2, 2025

In Colonia, Micronesia, understanding the UV Index is essential for ensuring your health and safety under the tropical sun. With UV levels reaching a peak of 14 during the midday hours, being aware of these fluctuations helps in preventing sunburn and protecting your skin from long-term damage. Colonia's tropical climate, characterized by warm temperatures year-round, poses notable UV exposure risks, especially in the late morning and early afternoon. Stay informed and protect your skin by monitoring the UV Index to enjoy the sun safely!

Hourly UV Index in Colonia

As the sun rises, the UV Index begins its ascent, reaching a modest 1 by 7:00 AM. By 9:00 AM, it climbs to 4, indicating a gradual intensity. The real peak arrives at 12:00 PM, where it soars to a significant 13, and 1:00 PM brings the highest reading of 14, reflecting the sun's strongest rays. As the afternoon progresses, the index starts to decline, dropping to 12 by 2:00 PM, and further decreasing to 6 by 4:00 PM. Finally, as the day winds down, the UV levels return to a safe 1 by 6:00 PM, reminding us to always be mindful of sun exposure, especially during 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	2	low	45 min
09:00	4	moderate	30 min
10:00	7	high	25 min
11:00	11	extreme	10 min
12:00	13	extreme	10 min
13:00	14	extreme	10 min
14:00	12	extreme	10 min
15:00	9	very high	15 min
16:00	6	high	25 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Colonia

The UV Index experiences extreme levels throughout the year, ranging from 11 to 16, with consistently high values indicating significant UV radiation. March and April are the peak months, with a maximum UV Index of 16, marking them as critical periods for sun exposure. Additionally, February and August showcase notable values of 14, making them high-risk months as well. Visitors and residents are strongly advised to take precautions during these times, including seeking shade, wearing protective clothing, and applying sunscreen with a high SPF to mitigate the risk of sunburn and long-term skin damage. Throughout the year, a burn time of just 10 minutes underscores the urgency of sun safety practices in this region.

Monthly Maximum UV Index for Colonia, Micronesia

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

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

Colonia's solar exposure compared to other cities in Micronesia. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Kolonia Town UVI	13	14	16	16	14	14	13	14	14	14	13	11
Kolonia UVI	13	14	16	16	14	14	13	14	14	14	13	11
Colonia	12	14	16	16	14	13	14	15	14	14	12	11
Weno UVI	13	15	16	16	14	14	14	14	14	14	12	12
Tofol UVI	14	15	16	16	15	13	13	14	14	13	12	12