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  2. Ontario, CA
  3. When is UV highest today

When is UV highest today in Ontario, CA

Updated October 24 · Live conditions refresh automatically.

UV Index

Moderate

Today's UV index is moderate. Using sunscreen or other UV protection is recommended. Try to avoid direct sun exposure between 11 AM and 4 PM.

TodayTomorrow
ExtremeVery highHighModerateLow
LowModerate

Hourly UV and cloud cover

UV index is unitless. Cloud cover is shown as a percentage.

Peak UV 5
HourUV indexCloud cover
34%
45%
45%
55%
46%
36%
15%
15%
05%
05%
05%
05%
05%

Quick answer — Ontario, CA

Moderate — Ontario, CA

When is UV highest today in Ontario, CA: Moderate. Today's UV index is moderate. Using sunscreen or other UV protection is recommended. Try to avoid direct sun exposure between 11 AM and 4 PM.

Verdict
Moderate
High / Low
75° / 56°
Details
Today's UV index is moderate. Using sunscreen or other UV…

· Live conditions refresh automatically.

When is UV highest today in Ontario, CA | Fit Check - Weather