UV Index in Koolbaai, Sint Maarten

Last updated: May 3, 2025

In Koolbaai, Sint Maarten, understanding the UV Index is crucial for safeguarding your skin as you enjoy the vibrant Caribbean sun. Awareness of UV levels helps in preventing sunburn and maintaining long-term skin health, especially when daily exposure can reach extreme levels, peaking at a striking UV index of 13 around noon. With Koolbaai's tropical climate, the potential for harmful UV radiation is intensified, making it essential to check the UV forecast regularly and take appropriate precautions to protect yourself and your loved ones while basking in the stunning scenery.

Hourly UV Index in Koolbaai

As the sun rises, the UV Index begins its ascent, starting at a gentle 1 at 7:00 AM. By 8:00 AM, it jumps to 3, a signal to enjoy some morning sun responsibly. The real intensity kicks in at 9:00 AM, peaking at 12:00 PM with a blistering 13—a reminder to seek shade and slather on that sunscreen! After the midday heat, the index begins to decline, dipping to 10 at 2:00 PM, and down to 1 by 5:00 PM. Finally, the day winds down at 6:00 PM with a UV index of 1, wrapping up the daylight hours with minimal UV exposure. Stay sun-safe and keep that SPF handy 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	12	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 Koolbaai

As the seasons change, the UV Index exhibits notable fluctuations, with high-risk months typically from February to October, where values reach extreme levels of 11 to 14. In these months, the burn time is as brief as 10 minutes, necessitating increased caution. In January, November, and December, while the UV Index remains at a very high level of 9, individuals still face a burn time of 15 minutes, indicating a need for protection. To ensure safety, both visitors and residents should prioritize wearing sunscreen, protective clothing, and seeking shade regularly during these peak months, especially from midday to mid-afternoon when the sun's intensity is highest.

Monthly Maximum UV Index for Koolbaai, Sint Maarten

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

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

Koolbaai's solar exposure compared to other cities in Sint Maarten. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Koolbaai	9	11	13	13	13	13	13	13	14	12	9	9
Simson Bay Village UVI	9	11	13	13	13	13	13	13	14	12	9	9
Philipsburg UVI	9	11	13	13	13	13	13	13	14	12	9	9
Lower Prince's Quarter UVI	9	11	13	13	13	13	13	13	14	12	9	9