UV Index in Guastatoya, Guatemala

Last updated: July 2, 2025

In Guastatoya, Guatemala, understanding the UV Index is essential for protecting your skin and overall health. With UV levels peaking at a striking 14 during midday hours, awareness becomes crucial to prevent sunburn and long-term skin damage. This vibrant region, characterized by its Aw climate, experiences significant UV exposure year-round, highlighting the need for residents and visitors alike to be informed. By staying alert to the UV Index, you can enjoy the beautiful Guastatoya sunshine while safeguarding your skin’s health.

Hourly UV Index in Guastatoya

The UV Index shows a dynamic rise and fall throughout the day, starting at a mild 1 at 7:00 AM and escalating to a peak of 14 by noon, indicating high risk for harm from unprotected sun exposure. As the afternoon progresses, the index gradually declines to 10 at 2:00 PM, then swiftly dips as the sun sets, falling back to 1 by 5:00 PM and ultimately dropping to 0 after 7:00 PM. It's a reminder to embrace sun safety measures, especially during those peak hours when the index climbs to 13 and 14, urging everyone to stay protected!

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	4	moderate	30 min
09:00	7	high	25 min
10:00	10	very high	15 min
11:00	13	extreme	10 min
12:00	14	extreme	10 min
13:00	13	extreme	10 min
14:00	10	very high	15 min
15:00	7	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 Guastatoya

Throughout the year, UV levels in the region consistently remain extreme, particularly from January to April, when the UV Index peaks at 15. During this period, the risk of sunburn is significantly high, with a burn time of only 10 minutes. May to October maintains a similarly high UV Index of 14, prompting continued caution. Conversely, the risk decreases slightly in November and December, with indexes of 10 and 9, respectively, categorized as very high; however, burn times extend to 15 minutes. Visitors and residents are strongly advised to take preventive measures year-round, such as using SPF 30 or higher, wearing protective clothing, and seeking shade to reduce the risk of UV exposure, especially during these high-risk months.

Monthly Maximum UV Index for Guastatoya, Guatemala

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

The table above highlights how UV exposure in Guastatoya 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.

Guastatoya'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
Guastatoya	11	13	15	15	14	14	14	14	14	13	10	9
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