UV Index in Castle Bruce, Dominica

Last updated: August 1, 2025

Understanding the UV Index is crucial for residents and visitors of Castle Bruce, Dominica, where the sun shines brightly in a typical tropical climate. With UV levels peaking at a staggering 14 around midday, raising awareness about these values is essential for sunburn prevention and maintaining healthy skin. By understanding the UV index, you can take proactive measures to protect yourself from harmful exposure. As Castle Bruce experiences significant UV radiation throughout the day, being informed can help you enjoy the beautiful outdoors safely while safeguarding your skin’s health.

Hourly UV Index in Castle Bruce

As the sun rises, the UV Index begins its ascent, starting at a mild 1 at 07:00. By 08:00, it climbs to 3, indicating a cautious need for sun protection. The real intensity kicks in by 09:00, reaching 6, and peaks at a striking 14 at 12:00—the hour when the sun is at its zenith. With readings of 13 still prevalent from 11:00 to 13:00, it’s a vital time to stay protected! As afternoon settles in, the UV levels gradually taper off; they dip to 6 by 15:00 and descend further to 3 at 16:00. By evening, the risk diminishes significantly with a return to 1 at 17:00, rounding off the day as twilight approaches with a 0 reading by 19:00. Stay safe in the sun!

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	10	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 Castle Bruce

The UV Index shows significant seasonal variations, with the most intense exposure occurring from February through October, where the index reaches levels categorized as extreme. During these months, particularly in March, April, May, July, and August, the UV Index peaks at 13 to 14, indicating a very short burn time of just 10 minutes. January, November, and December feature lower UV levels, classified as very high, with slightly longer burn times of 15 minutes. Visitors and residents should exercise caution during the high-risk months by seeking shade, wearing protective clothing, and applying sunscreen frequently to mitigate the risk of UV-related harm.

Monthly Maximum UV Index for Castle Bruce, Dominica

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

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

Castle Bruce's solar exposure compared to other cities in Dominica. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Castle Bruce	10	11	13	14	14	13	14	13	13	12	10	9
Marigot UVI	10	11	13	14	14	13	14	13	13	12	10	9
Portsmouth UVI	10	11	13	14	14	13	14	13	13	12	10	9
Mahaut UVI	10	11	13	14	14	13	14	13	13	12	10	9
Roseau UVI	10	11	13	14	14	13	14	13	13	12	10	9
Berekua UVI	10	11	13	14	14	13	14	13	13	12	10	9