UV Index in Castanuelas, Dominican Republic

Last updated: July 2, 2025

Understanding the UV Index in Castanuelas, Dominican Republic is crucial for protecting your skin and overall health under the tropical sun. As UV levels can rise to a peak 12 during midday, awareness of these fluctuating indices can help you take proactive measures against sunburn and long-term skin damage. Created by the unique climate of this coastal region, the UV exposure risks are especially heightened during peak hours, making it essential for residents and visitors alike to stay informed about daily UV levels. Embrace the sun responsibly by staying alert to the UV Index and implementing protective strategies to enjoy all that Castanuelas has to offer!

Hourly UV Index in Castanuelas

As the day unfolds, the UV Index steadily rises, peaking at a staggering 13 by 1:00 PM, indicating a high risk of harm from unprotected sun exposure. Early morning hours start with a modest 1 at 7:00 AM, increasing to 2 by 8:00 AM. By 10:00 AM, the index climbs to 7, and by 11:00 AM, it reaches 10, prompting serious sun protection measures. The intensity wanes in the afternoon, dropping to 8 at 3:00 PM, before descending further to 3 by 5:00 PM. As dusk approaches, the UV Index dwindles to a safe 1 by 6:00 PM, leaving us with a stark reminder of the sun's power during peak hours in the middle of the day.

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	10	very high	15 min
12:00	12	extreme	10 min
13:00	13	extreme	10 min
14:00	11	extreme	10 min
15:00	8	very high	15 min
16:00	5	moderate	30 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Castanuelas

During the year, the UV Index exhibits significant seasonal variations, with the highest readings occurring from February through August, when the index typically peaks at 13, classified as extreme exposure. The months of March, April, May, and August are particularly high-risk, with a burn time of just 10 minutes. In contrast, the winter months of January and December present a lower risk, with a UV Index of 8, categorized as very high, allowing for a slightly longer burn time of 15 minutes. Given the extreme UV levels during peak months, it is crucial for visitors and residents to take precautionary measures, such as wearing sunscreen, protective clothing, and sunglasses, especially from February to August to mitigate the risk of skin damage.

Monthly Maximum UV Index for Castanuelas, Dominican Republic

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

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

Castanuelas's solar exposure compared to other cities in Dominican Republic. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Castanuelas	8	11	13	13	13	12	12	13	12	11	9	8
Santiago de los Caballeros UVI	9	11	13	13	13	12	13	13	12	11	9	8
Santo Domingo Oeste UVI	9	11	13	13	13	12	13	13	13	11	9	8
Santo Domingo UVI	9	11	13	13	13	12	13	13	13	11	9	8
Santo Domingo Este UVI	9	11	13	13	13	12	13	13	13	11	9	8
San Pedro de Macoris UVI	9	11	13	13	13	12	13	13	13	11	9	8