Vallejo, California

Low

1.8

UV Index · Now

Step out.

You can step out without sun protection.

Unprotected

1 hr 51 min

until skin starts to burn.

With SPF 30

55 hr 33 min

Average unprotected skin. Lighter skin burns faster, darker skin slower.

HeatComfortable

Air

20°

Feels like

20°

Humidity

44%

Questions about Vallejo today

What is the UV index in Vallejo right now?
The UV index in Vallejo, California is 1.8 — categorised as Low. You can step out without sun protection.
Is it safe to go outside in Vallejo today?
Yes — UV is low (1.8) in Vallejo right now. You can step out without sun protection.
How long does it take to get sunburn in Vallejo?
Average unprotected skin starts to burn in roughly 1 hr 51 min at the current UV index of 1.8 in Vallejo. SPF 30 multiplies that window by about 30×. Lighter skin burns faster; darker skin burns more slowly.
What does the heat feel like in Vallejo today?
Air temperature is 20°C with 44% humidity, giving a "feels like" reading of 20°C — comfortable.
When is the safest time to step outside in Vallejo?
UV is highest between 11 am and 4 pm. Early mornings (before 9 am) and late afternoons (after 5 pm) are the safest windows for unprotected skin in Vallejo, especially through summer.
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Data: Open-Meteo · Cities: GeoNames (CC-BY 4.0) · Updated Tue 11:30 AM · Refreshes every 30 minutes