San Juan, PR: Current UV Index and Hourly Forecast

On this page, you can find the current UV Index and hourly 5 day UV Index forecast for San Juan, San Juan Municipio, Puerto Rico (PR). The Ultraviolet Index forecast, which measures the radiation from the sun that reaches the Earth's surface is updated daily.

Current UV Index
7:41 PM AST

0Risk: Low

(Updated 41 minutes ago.)

As of 7:41 PM AST, the UV Index in San Juan, PR is 0 (Low).
The UV Index is expected to rise to 0.1 between 7:00 AM - 8:00 AM AST tomorrow.

Hourly UV Index Forecast for Tomorrow
Saturday, October 12, 2024

12 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PMAtlantic Standard Time (AST)0123456789101112

UV Index Data sourced from the NOAA.


As of 7:41 PM AST on Friday, October 11, 2024, the UV index in San Juan, PR is at a low level of 0. At this time of the night, the sun has already set and there is no exposure to UV radiation. The UV Index will remain at 0 through the early morning hours until around 7:00 AM tomorrow.

As the day progresses tomorrow (October 12, 2024), the UV Index will rise to 0.1 between 7:00 AM - 8:00 AM, still considered low. The UV Index in San Juan will continue to rise through the morning, reaching a high level of 5.8 between 10:00 AM - 11:00 AM and a very high level of 8.6 between 11:00 AM - 12:00 PM. The UV Index will peak between 12:00 PM and 1:00 PM with a very high reading of 10.2.

For the protection of your health against UV exposure, we highly recommended wearing sunglasses, generously applying broad-spectrum SPF 15+ strength sunscreen on exposed skin, covering the body with sun-protective clothing and a wide-brim hat, and reducing the time spent outdoors in the sun during peak hours.

After reaching its peak for the day, the UV Index will gradually decline through the afternoon and evening. It will return to moderate levels at 3:00 PM and then drop to low levels again from 5:00 PM onwards. As the day transitions into the night, the UV Index will drop back down to 0 at 6:00 PM.


Summary of Hourly UV Index Forecast for Today and Tomorrow in San Juan, PR

Today

Time Range UV Index Risk
9:00 AM - 10:00 AM (AST) 2.9
Moderate
10:00 AM - 11:00 AM 5.7
High
11:00 AM - 3:00 PM 7.9 - 10
Very High
3:00 PM - 5:00 PM 2.5 - 5.1
Moderate
5:00 PM - 12:00 AM 0 - 0.7
Low

Tomorrow

Time Range UV Index Risk
12:00 AM - 9:00 AM (AST) 0 - 1
Low
9:00 AM - 10:00 AM 3
Moderate
10:00 AM - 11:00 AM 5.8
High
11:00 AM - 3:00 PM 8.1 - 10.2
Very High
3:00 PM - 5:00 PM 2.5 - 5.2
Moderate
5:00 PM - 12:00 AM 0 - 0.7
Low

Detailed Hourly San Juan UV Index Forecast for the next 5 days

Download CSV (Excel) ↓
Time UV Index Risk
7:00 PM - 8:00 PM (Now, AST) 0
Low
8:00 PM - 9:00 PM 0
Low
9:00 PM - 10:00 PM 0
Low
10:00 PM - 11:00 PM 0
Low
11:00 PM - 12:00 AM 0
Low
Time UV Index Risk
12:00 AM - 1:00 AM (AST) 0
Low
1:00 AM - 2:00 AM 0
Low
2:00 AM - 3:00 AM 0
Low
3:00 AM - 4:00 AM 0
Low
4:00 AM - 5:00 AM 0
Low
5:00 AM - 6:00 AM 0
Low
6:00 AM - 7:00 AM 0
Low
7:00 AM - 8:00 AM 0.1
Low
8:00 AM - 9:00 AM 1
Low
9:00 AM - 10:00 AM 3
Moderate
10:00 AM - 11:00 AM 5.8
High
11:00 AM - 12:00 PM 8.6
Very High
12:00 PM - 1:00 PM 10.2
Very High
1:00 PM - 2:00 PM 10
Very High
2:00 PM - 3:00 PM 8.1
Very High
3:00 PM - 4:00 PM 5.2
Moderate
4:00 PM - 5:00 PM 2.5
Moderate
5:00 PM - 6:00 PM 0.7
Low
6:00 PM - 7:00 PM 0
Low
7:00 PM - 8:00 PM 0
Low
8:00 PM - 9:00 PM 0
Low
9:00 PM - 10:00 PM 0
Low
10:00 PM - 11:00 PM 0
Low
11:00 PM - 12:00 AM 0
Low

Current UV Index in Nearby Cities