UV Index in Puerto San Jose, Guatemala

Last updated: July 2, 2025

Understanding the UV Index is crucial for residents and visitors in Puerto San Jose, Guatemala, where the sun shines brightly and the tropical climate can lead to significantly high UV levels. With peak UV readings reaching as high as 13 between noon and 1 PM, awareness of these levels is essential for effective sunburn prevention and long-term skin health. The typical weather in Puerto San Jose increases the risk of overexposure to harmful UV rays, making it vital for everyone to monitor the UV Index and take necessary precautions, such as wearing sunscreen, protective clothing, and seeking shade, especially during the hottest parts of the day.

Hourly UV Index in Puerto San Jose

As the day unfolds, the UV Index rises dramatically, peaking at 13 around 12:00 PM, signaling a maximum level of sun intensity. Early morning hours start off mild, with a low of 1 at 07:00 and climbing steadily to 6 by 09:00. The sun reaches its zenith at 11:00, with a value of 12, before gradually declining through the afternoon. By 15:00, the index drops to 6, further falling to 3 by 16:00 and finally returning to a safe 1 by 17:00. As twilight approaches, the index settles to 0 after 19:00, providing a serene close to the day. Remember to protect your skin during the peak hours from 10 AM to 2 PM, when the sun's rays are 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	1	low	45 min
08:00	3	moderate	30 min
09:00	6	high	25 min
10:00	9	very high	15 min
11:00	12	extreme	10 min
12:00	13	extreme	10 min
13:00	12	extreme	10 min
14:00	9	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 Puerto San Jose

The UV Index varies significantly throughout the year, peaking during the summer months from February to October, where it remains in the extreme category (UV Index 12-14) with a burn time of only 10 minutes. The high-risk months for UV exposure are February through October, particularly in June, which has the highest UV Index of 14. In contrast, November and December exhibit a lower UV Index of 9 with a very high exposure category, allowing for a burn time of 15 minutes. Visitors and residents are advised to take precautions during high UV months, such as wearing sunscreen, protective clothing, and seeking shade, especially during midday hours when UV levels are at their highest.

Monthly Maximum UV Index for Puerto San Jose, Guatemala

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

The table above highlights how UV exposure in Puerto San Jose 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.

Puerto San Jose'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
Puerto San Jose	10	12	13	13	13	14	13	13	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