UV Index in San Jose, Belize

Last updated: June 2, 2025

Understanding the UV Index is crucial for everyone living in or visiting San Jose, Belize. With its tropical climate, this vibrant town experiences some of the highest levels of UV radiation, peaking around noon when the index can soar to a formidable 13. Being aware of these UV levels is essential for sunburn prevention and maintaining optimal skin health, especially during outdoor activities. As you explore the beauty of San Jose, a little knowledge about the UV Index can go a long way in protecting your skin from harmful rays and ensuring a safe, enjoyable experience under the sun.

Hourly UV Index in San Jose

The UV Index today displays a dynamic pattern, peaking at a striking 13 around 12:00 PM, signaling the strongest sun exposure of the day. Early risers will enjoy a low UV of just 2 at 7:00 AM, but as the sun ascends, the index climbs sharply, reaching 10 by 10:00 AM and hitting 12 at 11:00 AM. As the afternoon unfolds, it gradually dips to 9 at 2:00 PM and then decreases further to 6 by 3:00 PM. By the evening, the UV Index drops significantly, plummeting to 1 at both 4:00 PM and 5:00 PM, and falling to 0 by 7:00 PM. Stay safe and protect your skin during those peak hours!

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	10	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 San Jose

The UV Index experiences significant variations throughout the year, reaching its peak during the spring and summer months. From January to April, the UV levels start at 9 and escalate to 14 by April, indicating an extreme exposure category with a rapid decrease in burn time to just 10 minutes. This high-risk period continues through May to October, where the UV Index remains at 12 to 13, maintaining the extreme classification and a burn time of 10 minutes. In November and December, the UV Index decreases to 9 and 8 respectively, categorized as very high, with burn times extending to 15 minutes. Visitors and residents should take proactive measures, especially from February to October, by wearing protective clothing, applying broad-spectrum sunscreen, and seeking shade during peak hours to minimize the risk of sunburn and long-term skin damage.

Monthly Maximum UV Index for San Jose, Belize

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

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

San Jose's solar exposure compared to other cities in Belize. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
San Jose	9	11	13	14	13	13	13	13	13	12	9	8
Orange Walk UVI	9	11	13	14	13	13	13	13	13	12	9	8
San Pedro UVI	9	11	13	14	13	13	13	13	13	12	9	8
Belize City UVI	9	11	13	14	13	13	13	13	13	12	9	8
San Ignacio UVI	9	11	13	14	13	13	13	13	13	12	9	8
Belmopan UVI	9	11	13	14	13	13	13	14	13	12	9	8