UV Index in Baja California, Mexico

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Baja California, Mexico, where the sun shines brightly throughout much of the year. High UV levels, particularly during midday hours, can lead to sunburn and long-term skin damage if precautions aren't taken. With the region's semi-arid climate leading to increased sunlight exposure, it's essential to be aware of the UV index to protect your skin and promote overall health. As we dive into the UV Index patterns, we’ll explore how you can safely enjoy the beautiful outdoors while minimizing your risk of skin-related issues.

Hourly UV Index in Baja California

Starting from the early hours of the day, the UV Index begins at a low 1 at 07:00, gradually climbing to 3 by 09:00. As the morning progresses, the intensity ramps up significantly, peaking at an impressive 14 around 13:00. The sun’s strength remains formidable, with a 12 at 12:00 and 10 at 11:00. After this midday apex, the UV levels start to decline—dropping to 11 by 15:00 and tapering to 4 at 17:00. As evening approaches, the index returns to a safe 1 by 19:00, signaling a gentle end to the day's solar exposure. It's essential to take precautions during the peak hours, especially between 10:00 and 14:00, when UV radiation is at its most intense.

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	1	low	45 min
09:00	3	moderate	30 min
10:00	6	high	25 min
11:00	10	very high	15 min
12:00	12	extreme	10 min
13:00	14	extreme	10 min
14:00	13	extreme	10 min
15:00	11	extreme	10 min
16:00	7	high	25 min
17:00	4	moderate	30 min
18:00	2	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Baja California

Throughout the year, significant seasonal changes in the UV Index are observed, with high-risk months spanning from February to September when the index reaches extreme levels, peaking at 14. During these months, the recommended burn time is notably short, at just 10 minutes, emphasizing the need for protective measures. Even in the winter months, the UV Index remains a concern, particularly in January and February with values of 10 and 12, respectively, where exposure is categorized as very high and extreme. For residents and visitors, it is crucial to stay vigilant and adopt protective strategies, such as wearing sunscreen, hats, and sunglasses, especially during the high UV season, to mitigate the risk of sunburn and long-term skin damage.

Monthly Maximum UV Index for Baja California, Mexico

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

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

Baja California's solar exposure compared to other cities in Mexico. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Guadalajara UVI	9	11	14	14	14	13	13	13	13	12	9	8
Iztapalapa UVI	10	12	14	15	14	14	14	14	14	12	10	8
Ecatepec de Morelos UVI	10	12	14	15	15	14	14	13	14	12	10	8
Mexico City UVI	10	12	14	15	15	14	14	13	14	12	10	8
Baja California	10	12	14	14	14	14	14	13	14	13	10	9
Puebla UVI	10	12	14	15	15	15	15	14	14	13	10	9