UV Index in Greytown, Nicaragua

Last updated: August 1, 2025

Understanding the UV Index is vital for residents and visitors in Greytown, Nicaragua, where the tropical climate can lead to elevated sun exposure risks. With UV levels peaking at an alarming 13 around midday, being aware of these readings is essential for sunburn prevention and maintaining overall skin health. As Greytown experiences intense sunlight, especially from 10:00 AM to 2:00 PM, knowing the UV Index can help you make informed decisions about outdoor activities, ensuring you protect your skin while enjoying the beauty of this vibrant locale.

Hourly UV Index in Greytown

The UV index throughout the day presents an intriguing journey of exposure, peaking at 13 from 11:00 AM to 12:00 PM—the sun's most intense moment. Starting from a modest 2 at 7:00 AM, the index swiftly escalates, hitting 4 by 8:00 AM and soaring to a substantial 11 at 10:00 AM. Just one hour later, it reaches its zenith, radiating at 13, before gradually descending as the afternoon wanes. By 3:00 PM, it's a more manageable 5, eventually dwindling down to 0 by 7:00 PM, signaling a safe retreat from the sun's rays. This dynamic UV pattern serves as a reminder to stay vigilant under the sun, especially during its peak hours when protective measures are essential.

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	2	low	45 min
08:00	4	moderate	30 min
09:00	8	very high	15 min
10:00	11	extreme	10 min
11:00	13	extreme	10 min
12:00	13	extreme	10 min
13:00	11	extreme	10 min
14:00	8	very high	15 min
15:00	4	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	0	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Greytown

Throughout the year, the UV Index reflects significant seasonal variations, with extreme levels consistently observed from January to November. High-risk months are primarily from February to May, where the UV Index peaks at 14, indicating a burn time of just 10 minutes for unprotected skin. While June to October maintains a stable UV Index of 13, the burn time remains critical at 10 minutes. Only in December does the index dip to 10 (very high), extending the burn time to 15 minutes. Therefore, it is essential for both visitors and residents to prioritize sun protection measures—such as applying broad-spectrum sunscreen, wearing protective clothing, and seeking shade during peak hours, especially from February to May.

Monthly Maximum UV Index for Greytown, Nicaragua

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

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

Greytown's solar exposure compared to other cities in Nicaragua. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Chinandega UVI	11	12	14	14	14	14	13	13	13	13	10	9
Leon UVI	11	12	14	14	14	14	13	13	13	13	10	10
Greytown	11	12	14	14	14	13	13	13	13	13	11	10
Managua UVI	11	13	14	14	14	13	13	13	13	13	10	10
Masaya UVI	11	13	14	14	14	14	14	13	13	13	10	10
Matagalpa UVI	11	13	15	15	14	14	14	14	14	14	11	10