University of California-Merced, 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 University of California-Merced, Merced 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
2:28 PM PDT

3.3Risk: Moderate

(Updated 28 minutes ago.)

As of 2:28 PM PDT, the UV Index in University of California-Merced, CA is 3.3 (Moderate).
The UV Index is expected to fall to 2.4 (Low) between 3:00 PM - 4:00 PM PDT today.

Hourly UV Index Forecast for Today
Friday, October 30, 2026

12 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PMPacific Daylight Time (PDT)0123456789101112Current Time: 2:28 PM, PDT

UV Index Data sourced from the NOAA.


As of 2:28 PM PDT today in University of California-Merced, CA, the UV Index is currently at a moderate level of 3.3. As the day progresses, the UV index is expected to fall as the sun sets.

The UV Index will return to low levels of 2.4 at 3:00 PM. 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 University of California-Merced, CA

Today

Time RangeUV IndexRisk
12:00 AM - 12:00 PM (PDT)0 - 2.2
Low
12:00 PM - 3:00 PM3.2 - 3.6
Moderate
3:00 PM - 12:00 AM0 - 2.4
Low

Tomorrow

Time RangeUV IndexRisk
12:00 AM - 12:00 PM (PDT)0 - 1.8
Low
12:00 PM - 1:00 PM2.7
Moderate
1:00 PM - 12:00 AM0 - 2.3
Low

Detailed Hourly University of California-Merced UV Index Forecast for the next 5 days

Download CSV (Excel) ↓
TimeUV IndexRisk
2:00 PM - 3:00 PM (Now, PDT)3.3
Moderate
3:00 PM - 4:00 PM 2.4
Low
4:00 PM - 5:00 PM 1.3
Low
5:00 PM - 6:00 PM 0.4
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

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