Black Point-Green Point, CA: Current UV Index and Hourly Forecast

On this page, you can find the current UV Index and hourly 5 day UV Index forecast for Black Point-Green Point, Marin County, California (CA). The Ultraviolet Index forecast, which measures the radiation from the sun that reaches the Earth's surface is updated daily.

Current UV Index
3:11 PM PDT

7.5Risk: Very High

(Updated 11 minutes ago.)

As of 3:11 PM PDT, the UV Index in Black Point-Green Point, CA is 7.5 (Very High).
The UV Index is expected to fall sharply to 5.2 (Moderate) between 4:00 PM - 5:00 PM PDT today.

Hourly UV Index Forecast for Today
Friday, August 8, 2025

6 AM9 AM12 PM3 PM6 PM9 PMPacific Daylight Time (PDT)0123456789101112Current Time: 3:11 PM, PDT

UV Index Data sourced from the NOAA.


As of 3:11 PM PDT today in Black Point-Green Point, CA, the UV Index is currently at a very high level of 7.5. As the day progresses, the UV index is expected to fall as the sun sets.

It will return to moderate levels at 4:00 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 Black Point-Green Point, CA

Today

Time RangeUV IndexRisk
6:00 AM - 10:00 AM (PDT)0 - 2.2
Low
10:00 AM - 11:00 AM4.4
Moderate
11:00 AM - 12:00 PM6.8
High
12:00 PM - 4:00 PM7.5 - 9.5
Very High
4:00 PM - 6:00 PM2.9 - 5.2
Moderate
6:00 PM - 12:00 AM0 - 1.2
Low

Tomorrow

Time RangeUV IndexRisk
12:00 AM - 10:00 AM (PDT)0 - 2
Low
10:00 AM - 11:00 AM4
Moderate
11:00 AM - 1:00 PM6.1 - 7.4
High
1:00 PM - 3:00 PM7.9 - 8.2
Very High
3:00 PM - 4:00 PM6.7
High
4:00 PM - 6:00 PM2.5 - 4.6
Moderate
6:00 PM - 12:00 AM0 - 1.2
Low

Detailed Hourly Black Point-Green Point UV Index Forecast for the next 5 days

Download CSV (Excel) ↓
TimeUV IndexRisk
3:00 PM - 4:00 PM (Now, PDT)7.5
Very High
4:00 PM - 5:00 PM 5.2
Moderate
5:00 PM - 6:00 PM 2.9
Moderate
6:00 PM - 7:00 PM 1.2
Low
7:00 PM - 8:00 PM 0.3
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

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