UV Index in Guastatoya, Guatemala

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Guastatoya, Guatemala, where the high altitude and tropical climate contribute to significant UV exposure. Awareness of UV levels helps prevent sunburn and protects skin health, especially during peak hours when the index can soar to 14 – indicating extreme risk. With temperatures typically warm year-round, it's essential to stay informed about the daily UV Index to safeguard yourself from harmful effects of the sun. Be proactive and enjoy the vibrant outdoors while prioritizing your skin health!

Hourly UV Index in Guastatoya

The UV Index today showcases a dramatic rise in solar intensity, starting with a moderate level of 2 at 7:00 AM. As the sun climbs higher in the sky, the intensity peaks at a staggering 14 by noon, marking the most hazardous time for sun exposure. It reaches a maximum of 13 at 1:00 PM, emphasizing the need for protective measures like sunscreen and hats. The afternoon sees a swift decline, dropping to 10 by 2:00 PM and further down to 6 at 3:00 PM. As evening approaches, the UV Index dips to 1 by 5:00 PM, offering some relief, before finally settling at 0 after 7:00 PM. For those planning their day, early morning and late evening provide a safer window for outdoor activities, while midday requires caution to avoid overexposure.

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	2	low	45 min
08:00	4	moderate	30 min
09:00	7	high	25 min
10:00	11	extreme	10 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	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 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