UV Index in San Luis, Cuba

Last updated: June 2, 2025

Understanding the UV Index in San Luis, Cuba is crucial for protecting your skin and maintaining overall health. With intense solar radiation typical in this tropical Aw climate, awareness of UV levels can help prevent sunburn and long-term skin damage. The UV Index can soar dramatically, peaking at 13 around midday, indicating a severe risk of harm from unprotected sun exposure. By staying informed about these levels, residents and visitors can take proactive measures to shield themselves from the sun’s harmful rays while enjoying the beautiful Cuban outdoors.

Hourly UV Index in San Luis

As the sun rises, the UV Index starts off relatively low, peaking at 1 from 7:00 AM to 9:00 AM. However, the intensity quickly escalates, reaching 3 at 9:00 AM and hitting a striking 5 by 10:00 AM. From 11:00 AM to 1:00 PM, the UV levels soar, peaking at a blistering 13 at 1:00 PM, making this the most dangerous period for sun exposure. As the day progresses, the index begins to moderate, dropping to 8 by 4:00 PM and continuing to decline until it settles back at 1 by 7:00 PM. It's crucial to stay protected during those midday hours when the sun's rays are at their strongest!

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	1	low	45 min
09:00	3	moderate	30 min
10:00	5	moderate	30 min
11:00	9	very high	15 min
12:00	11	extreme	10 min
13:00	13	extreme	10 min
14:00	13	extreme	10 min
15:00	11	extreme	10 min
16:00	8	very high	15 min
17:00	5	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in San Luis

As the seasons change, so do the levels of UV radiation. From January to December, the UV Index fluctuates, peaking at a high of 13 from April to June, categorizing these months as part of the extreme exposure category, where the burn time is as short as 10 minutes. Notably, February and March also present high risks with indices of 10 and 11, respectively. November and December, while having lower values at 8 and 7, still fall into the very high to high categories, cautioning residents and visitors. It's crucial for everyone to take protective measures during the high-risk months (February to October) by wearing sunscreen, protective clothing, and seeking shade to minimize exposure and prevent sunburn. Stay informed and safe by monitoring UV levels and adjusting outdoor activities accordingly.

Monthly Maximum UV Index for San Luis, Cuba

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

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

San Luis's solar exposure compared to other cities in Cuba. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Havana UVI	7	10	11	12	12	13	12	12	12	10	8	7
San Luis	7	10	11	13	13	13	12	12	12	11	8	7
Camaguey UVI	8	10	12	13	13	13	12	12	12	11	9	7
Holguin UVI	8	11	12	13	13	13	13	13	12	11	8	7
Santiago de Cuba UVI	9	11	12	13	13	13	13	13	13	11	9	8
Guantanamo UVI	9	11	12	13	13	13	13	13	13	11	9	8