Miami, FL: Current UV Index and Hourly Forecast

On this page, you can find the current UV Index and hourly 5 day UV Index forecast for Miami, Miami-Dade County, Florida (FL). The Ultraviolet Index forecast, which measures the radiation from the sun that reaches the Earth's surface is updated daily.

Current UV Index
3:31 PM EDT

8.3Risk: Very High

(Updated 31 minutes ago.)

As of 3:31 PM EDT, the UV Index in Miami, FL is 8.3 (Very High).
The UV Index is expected to fall sharply to 5.7 (High) between 4:00 PM - 5:00 PM EDT today.

Hourly UV Index Forecast for Today
Monday, April 27, 2026

9 AM12 PM3 PM6 PM9 PMEastern Daylight Time (EDT)0123456789101112Current Time: 3:31 PM, EDT

UV Index Data sourced from the NOAA.


As of 3:31 PM EDT today in Miami, FL, the UV Index is currently at a very high level of 8.3. As the day progresses, the UV index is expected to fall as the sun sets.

It will return to moderate levels at 5:00 PM and then drop to low levels again from 6:00 PM onwards. As the day transitions into the night, the UV Index will drop back down to 0 at 8:00 PM.


Summary of Hourly UV Index Forecast for Today and Tomorrow in Miami, FL

Today

Time RangeUV IndexRisk
9:00 AM - 10:00 AM (EDT)1.7
Low
10:00 AM - 11:00 AM3.9
Moderate
11:00 AM - 12:00 PM6.5
High
12:00 PM - 4:00 PM8.3 - 10.2
Very High
4:00 PM - 5:00 PM5.7
High
5:00 PM - 6:00 PM2.9
Moderate
6:00 PM - 12:00 AM0 - 1.1
Low

Tomorrow

Time RangeUV IndexRisk
12:00 AM - 10:00 AM (EDT)0 - 1.7
Low
10:00 AM - 11:00 AM4
Moderate
11:00 AM - 12:00 PM6.6
High
12:00 PM - 4:00 PM7.9 - 10
Very High
4:00 PM - 5:00 PM6
High
5:00 PM - 6:00 PM3.3
Moderate
6:00 PM - 12:00 AM0 - 1.3
Low

Detailed Hourly Miami UV Index Forecast for the next 5 days

Download CSV (Excel) ↓
TimeUV IndexRisk
3:00 PM - 4:00 PM (Now, EDT)8.3
Very High
4:00 PM - 5:00 PM 5.7
High
5:00 PM - 6:00 PM 2.9
Moderate
6:00 PM - 7:00 PM 1.1
Low
7:00 PM - 8:00 PM 0.1
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