UV Index in San Lorenzo, Guatemala

Last updated: June 2, 2025

Understanding the UV Index in San Lorenzo, Guatemala is crucial for safeguarding your skin from harmful ultraviolet radiation. With intense UV levels peaking at 13 during midday hours, awareness of these fluctuations helps residents and visitors alike prevent sunburn and ensure long-term skin health. San Lorenzo's warm, tropical climate presents a significant risk for UV exposure, underlining the importance of monitoring the UV Index regularly. By staying informed, you can enjoy the vibrant outdoors while protecting your skin from the sun's damaging effects.

Hourly UV Index in San Lorenzo

As the sun rises, the UV Index begins its ascent, starting with a mild level of 1 at 07:00. By 08:00, it climbs to 3, signifying a gradual increase in sun intensity. The solar intensity peaks sharply from 09:00 onward, reaching its maximum of 13 by noon, a reminder for everyone to seek shade and protect their skin during this critical time. The index remains high through the early afternoon before tapering off, falling to 10 at 14:00 and gradually descending to 6 at 15:00 and then dropping further as the sun sets, with values receding to 1 by 17:00 and 0 by 19:00. This hourly UV data highlights the importance of sun safety during midday, ensuring you enjoy the outdoors while protecting your skin!

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	7	high	25 min
10:00	10	very high	15 min
11:00	13	extreme	10 min
12:00	13	extreme	10 min
13:00	13	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 San Lorenzo

Throughout the year, the UV Index in this region exhibits significant seasonal variations, peaking from January to September, where it reaches extreme levels. The highest UV Index of 14 occurs in April, signaling a critical period for sun exposure. February through September are identified as high-risk months, with consistently extreme levels and a burn time as short as 10 minutes. In contrast, November and December see a drop to a very high UV Index of 9, allowing for a slightly longer safe exposure time of 15 minutes. Visitors and residents are advised to take precautionary measures during these peak months, such as wearing protective clothing, using high-SPF sunscreen, and seeking shade during midday hours to minimize the risk of harmful UV exposure.

Monthly Maximum UV Index for San Lorenzo, Guatemala

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

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

San Lorenzo's solar exposure compared to other cities in Guatemala. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
San Lorenzo	10	11	13	14	13	13	13	12	13	12	9	9
Petapa UVI	11	13	14	15	14	14	14	14	14	13	10	10
Villa Nueva UVI	11	13	14	15	14	14	14	14	14	13	10	10
Mixco UVI	11	13	15	15	14	14	14	14	14	13	11	10
Guatemala City UVI	11	13	15	15	14	14	14	14	14	13	11	10
San Juan Sacatepequez UVI	11	13	15	15	14	14	15	14	14	13	11	10