UV Index in San Bartolo, Guatemala

Last updated: August 1, 2025

In San Bartolo, Guatemala, understanding the UV Index is crucial for maintaining skin health and preventing uncomfortable sunburns. With a climate characterized by consistent sunlight, particularly during the peak hours between 10:00 AM and 1:00 PM when UV levels can soar to 16, awareness of UV exposure risks is vital. By keeping an eye on the UV Index, residents and visitors can take proactive measures to protect themselves from harmful rays, ensuring enjoyable outdoor experiences without compromising their skin's wellbeing. Stay informed and keep your skin safe under the sun!

Hourly UV Index in San Bartolo

The UV Index for the day presents a striking rise and fall pattern as the sun climbs and sets. Starting at a mild 1 at 07:00, it quickly escalates to a peak of 16 by noon, emphasizing the need for sun protection during these hours. As the afternoon progresses, the intensity begins to wane, dropping to 14 at 13:00 and tapering down to a more forgiving 2 by 17:00. The UV Index then gracefully diminishes to 0 by 19:00, heralding the day's end. For those planning outdoor activities, midday is crucial—stay protected and enjoy the sunshine safely!

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	11	extreme	10 min
11:00	14	extreme	10 min
12:00	15	extreme	10 min
13:00	14	extreme	10 min
14:00	11	extreme	10 min
15:00	7	high	25 min
16:00	4	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in San Bartolo

The UV Index data presents a notable trend of consistently high UV levels from January through November, classified as “extreme.” The month of March peaks with an index of 16, followed closely by April and July, while February is slightly higher at 14. Visitors and residents should be particularly vigilant during these high-risk months, as the burn time is a mere 10 minutes across most months, emphasizing the need for sun protection such as sunscreen, hats, and protective clothing when outdoors. As the year progresses into December, there is a slight reduction in UV exposure, decreasing to a very high level with a burn time of 15 minutes. It’s crucial for everyone to remain aware of the high UV index and take appropriate precautions year-round to safeguard against harmful sun exposure.

Monthly Maximum UV Index for San Bartolo, Guatemala

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

The table above highlights how UV exposure in San Bartolo 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 Bartolo'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
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
San Bartolo	12	14	16	16	15	15	16	15	14	14	11	10