UV Index in San Blas, Mexico

Last updated: July 2, 2025

Understanding the UV Index is essential for residents and visitors of San Blas, Mexico, where the sun's rays can be particularly intense. The UV levels in this coastal paradise can soar to a max of 12, especially during midday hours, making awareness crucial for sunburn prevention and maintaining skin health. Given San Blas' warm climate, it’s vital to recognize the risks associated with UV exposure, ensuring you can enjoy the beautiful beaches without compromising your well-being. Stay informed and protect your skin by keeping an eye on the UV Index!

Hourly UV Index in San Blas

The UV Index throughout the day shows a distinct pattern, peaking sharply during midday. Starting at a modest 1 at 7:00 AM, it escalates to a moderate 2 by 8:00 AM. As the sun climbs higher, the index reaches 3 at 9:00 AM and quickly surges to 6 by 10:00 AM. The intensity peaks dramatically at 12 from noon to 1:00 PM, indicating a time when sun protection is crucial. As the afternoon progresses, the UV Index gently declines, with readings of 11 at 2:00 PM and 9 at 3:00 PM. The sunlight begins to wane, returning to 6 by 4:00 PM and tapering off to 3 at 5:00 PM, before sinking back to a safe 1 by 6:00 PM and holding steady until sunset. This data serves as a vital reminder to stay sun-safe, particularly 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	1	low	45 min
08:00	2	low	45 min
09:00	3	moderate	30 min
10:00	6	high	25 min
11:00	9	very high	15 min
12:00	12	extreme	10 min
13:00	12	extreme	10 min
14:00	11	extreme	10 min
15:00	9	very high	15 min
16:00	6	high	25 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in San Blas

The UV Index exhibits significant seasonal variations, peaking between March and October, where the exposure category is predominantly extreme. Notably, the months of April and May maintain an index of 13, indicating critical sun exposure risks with a burn time of just 10 minutes. March also presents a high risk with a UV index of 12. Residents and visitors should be particularly vigilant during these months, as skin damage can occur quickly. In contrast, November and December show a reduction in risk, with indices declining to 9 and 7, respectively. Advising individuals to apply sunscreen, wear protective clothing, and seek shade during peak sun hours is essential, especially in high-risk months.

Monthly Maximum UV Index for San Blas, Mexico

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

The table above highlights how UV exposure in San Blas 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.

San Blas'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
San Blas	8	10	12	13	13	13	12	12	12	11	9	7
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
Puebla UVI	10	12	14	15	15	15	15	14	14	13	10	9