UV Index in Mercedes, Uruguay

Last updated: August 1, 2025

In Mercedes, Uruguay, being aware of the UV Index is crucial for protecting your skin and overall health. Understanding UV levels can help you prevent sunburn, minimize the risk of skin damage, and maintain long-term skin health. With its Cfa climate, Mercedes experiences varying UV exposure throughout the day, peaking at a moderate level of 4 around midday. As you enjoy the sunny outdoors, keeping an eye on the UV Index is essential to ensure safe sun habits and protect your loved ones from harmful rays.

Hourly UV Index in Mercedes

At dawn, the UV Index remains nonexistent until 8:00 AM, when it registers a low 1, gradually climbing as the day unfolds. By 10:00 AM, it reaches 2, and as the sun reaches its zenith at 12:00 PM, the index peaks at a moderate 4. This peak is maintained until 2:00 PM, where the sun’s intensity persists, before gradually tapering off in the afternoon. At 3:00 PM, the UV Index drops back down to 3, continuing its decline to 1 by 5:00 PM, and ultimately settling back to 0 by 6:00 PM. As evening approaches, the UV radiation fades, highlighting the importance of sun protection during those midday hours when it’s most potent.

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	0	low	45 min
08:00	1	low	45 min
09:00	2	low	45 min
10:00	3	moderate	30 min
11:00	5	moderate	30 min
12:00	6	high	25 min
13:00	6	high	25 min
14:00	5	moderate	30 min
15:00	4	moderate	30 min
16:00	2	low	45 min
17:00	1	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in Mercedes

The UV Index shows significant seasonal changes in sun exposure, with high-risk months occurring from January to April and during October to November. The UV Index peaks at 15 in January and gradually decreases to 4 by July before rising again. Notably, from January to March, the exposure category remains in the extreme range, with a quick burn time of only 10 minutes. In contrast, May and June experience a moderate index, allowing for longer safe exposure times of 30 minutes. Visitors and residents should take extra precautions during high-risk months, including wearing sunscreen, seeking shade, and wearing protective clothing, especially when the index is at its peak.

Monthly Maximum UV Index for Mercedes, Uruguay

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

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

Mercedes's solar exposure compared to other cities in Uruguay. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Las Piedras UVI	14	13	11	7	5	3	4	6	8	10	13	14
Montevideo UVI	14	13	11	7	5	3	4	6	8	10	13	14
Mercedes	15	13	11	8	5	4	4	6	8	11	13	14
Paysandu UVI	15	13	11	8	5	4	4	6	8	11	13	14
Salto UVI	15	13	12	8	5	4	5	6	9	11	13	14
Rivera UVI	15	14	12	9	5	4	5	7	9	12	14	15