Longmont, Colorado

Low

1.1

UV Index · Now

Step out.

You can step out without sun protection.

Unprotected

3 hr 10 min

until skin starts to burn.

With SPF 30

95 hr 14 min

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

HeatComfortable

Air

16°

Feels like

16°

Humidity

19%

Questions about Longmont today

What is the UV index in Longmont right now?
The UV index in Longmont, Colorado is 1.1 — categorised as Low. You can step out without sun protection.
Is it safe to go outside in Longmont today?
Yes — UV is low (1.1) in Longmont right now. You can step out without sun protection.
How long does it take to get sunburn in Longmont?
Average unprotected skin starts to burn in roughly 3 hr 10 min at the current UV index of 1.1 in Longmont. SPF 30 multiplies that window by about 30×. Lighter skin burns faster; darker skin burns more slowly.
What does the heat feel like in Longmont today?
Air temperature is 16°C with 19% humidity, giving a "feels like" reading of 16°C — comfortable.
When is the safest time to step outside in Longmont?
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 Longmont, especially through summer.
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Data: Open-Meteo · Cities: GeoNames (CC-BY 4.0) · Updated Tue 12:00 PM · Refreshes every 30 minutes