UV Index in San Francisco, Panama

Last updated: June 2, 2025

Understanding the UV Index is crucial for residents and visitors in San Francisco, Panama, where the tropical climate can expose you to significant ultraviolet radiation. By monitoring UV levels, you can effectively prevent sunburn and protect your skin health from long-term damage. With the UV Index often peaking around noon at a striking 14, awareness is key to enjoying the sun safely. Particularly during the warmest hours, knowing when to seek shade or apply sunscreen becomes vital in this vibrant coastal city. Stay informed and safeguard your skin as you explore the beauty of San Francisco!

Hourly UV Index in San Francisco

This hour-by-hour breakdown of the UV Index reveals a dynamic pattern of sun exposure throughout the day. Starting at 07:00 with a gentle 1, the intensity steadily increases, peaking at 12:00 when it reaches a striking 14—the highest point of the day, ideal for those seeking a sun-kissed glow. The index then begins to decline, with 11:00 hitting a close 12 before tapering off to more manageable levels by 16:00 at 4. As the sun sets, the UV Index drops to a mere 0 by 19:00, highlighting the importance of sun protection during peak hours, particularly between 10:00 and 14:00, when UV levels are most intense. Stay safe and enjoy the sun wisely!

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	5	moderate	30 min
10:00	9	very high	15 min
11:00	12	extreme	10 min
12:00	14	extreme	10 min
13:00	14	extreme	10 min
14:00	11	extreme	10 min
15:00	8	very high	15 min
16:00	4	moderate	30 min
17:00	2	low	45 min
18:00	1	low	45 min
19:00	0	low	45 min

Monthly UV Index Trends in San Francisco

The UV Index experiences extremely high levels throughout most of the year, peaking at 15 from March to May. Residents and visitors should take extra caution during these high-risk months, particularly from January through April when the UV Index remains consistently above 12. Even in the summer months of June to September, the UV Index remains at 14, indicating a persistent risk for skin damage. It is advisable to protect your skin by wearing sunscreen, protective clothing, and seeking shade whenever possible, especially during peak sun hours. Remember that even on cloudy days, UV rays can still pose a risk, so stay vigilant year-round.

Monthly Maximum UV Index for San Francisco, Panama

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

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

San Francisco's solar exposure compared to other cities in Panama. Generated using Copernicus Atmosphere Monitoring Service information.
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Arraijan UVI	12	13	14	15	14	13	14	13	13	13	11	10
Juan Diaz UVI	12	13	14	15	14	13	14	13	13	13	11	10
San Miguelito UVI	12	13	14	15	14	13	14	13	13	13	11	10
Panama UVI	12	13	14	15	14	13	14	13	13	13	11	10
David UVI	12	13	14	15	14	13	14	13	14	14	12	11
San Francisco	12	14	15	15	15	14	14	14	14	14	12	11