UV Index in Rosarito, Mexico

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in Rosarito, Mexico, where the sun's strong rays can have a significant impact on skin health. With daily UV levels frequently climbing to dangerous heights—reaching up to 11 during peak hours—being mindful of sunlight exposure can help prevent painful sunburns and reduce the risk of long-term skin damage. Given Rosarito's BSk climate, characterized by warm, dry summers and mild winters, it's essential to stay informed about your UV surroundings to protect yourself and enjoy the beautiful coastal sunshine safely.

Hourly UV Index in Rosarito

The UV Index for the day presents a fascinating variation as the sun climbs higher in the sky. Starting from a gentle 1 at 07:00, the intensity gradually escalates, reaching a moderate 4 by 09:00. The peak hits at 12:00 and 13:00, soaring to an intense 11, indicating a significant risk of harm from unprotected sun exposure. As the afternoon unfolds, the index begins to decline, tapering to 8 at 15:00, and by the evening, it plummets back to a 1 by 18:00. This data serves as a reminder to stay vigilant about sun safety during those peak hours when UV exposure is at its highest!

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	4	moderate	30 min
10:00	7	high	25 min
11:00	9	very high	15 min
12:00	11	extreme	10 min
13:00	11	extreme	10 min
14:00	10	very high	15 min
15:00	8	very high	15 min
16:00	5	moderate	30 min
17:00	3	moderate	30 min
18:00	1	low	45 min
19:00	1	low	45 min

Monthly UV Index Trends in Rosarito

The UV Index experiences significant seasonal variations, peaking during the summer months. High-risk months for UV exposure are from May to August, when the UV Index consistently reaches levels categorized as extreme (11), indicating a burn time as short as 10 minutes. March and April also present high risks with very high indexes (8 and 10), where the burn time drops to 15 minutes. Visitors and residents are strongly advised to take protective measures during these months, such as wearing sunscreen, sunglasses, and protective clothing, and seeking shade during peak sun hours to minimize the risk of skin damage. As fall approaches, the risk decreases, with October seeing a high category (UV Index 7) but burn times lengthening to 25 minutes.

Monthly Maximum UV Index for Rosarito, Mexico

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

The table above highlights how UV exposure in Rosarito 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.

Rosarito'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
Rosarito	4	6	8	10	11	11	11	11	10	7	5	4
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