◍ Seattle, Washington, US

Wednesday, October 21, 4:25 pm local
3
Moderate
PROTECTION
Protection required
0–2Low3–5Moderate6–7High8–10Very High11+Extreme
Protect yourself now Use UV Pro-Sport SPF 30Shop →
☀ 07:35:22 ☾ 18:11:58
60% of today's peak UV
Solar radiation
302 W/m2
Solar Energy
1.1 W/m2
Temp
16.7 °
Feels like
16.7 °
Dew Point
9.5 °
Wind
5.3 Km/h
Today's peak UV
5
Moderate
Protection needed
Protection needed. Seek shade during late morning through mid-afternoon. When outside, generously apply broad-spectrum SPF-15 or higher sunscreen on exposed skin, and wear protective clothing, a wide-brimmed hat, and sunglasses.
Best time outdoors
Before 10:00 am & after 5:00 pm
Peak UV around 1:00 am, limit midday exposure.


Sunburn calculator

Select your skin type (Fitzpatrick scale):
Deep, almost never burns
Time to burn at UV 5
6h 47m
Unprotected skin. SPF 30 extends this ~30×, SPF 50 ~50×, when applied correctly.

Hourly UV · today

1 2 5 5 4 2 3 2 0 3 6 9 12 15 17 18 21

7-day Forecast

Today
5
Wed
4
Thu
3
Fri
2
Sat
4
Sun
4
Mon
4

UV scale & what to do

0–2LowNo protection needed
3–5ModerateNOWSPF 30+, hat at midday
6–7HighSPF 50+, shade 11–15h
8–10Very HighSPF 50+, limit exposure
11+ExtremeAvoid sun, full cover

UV Index FAQ

UV Index Near Seattle:

Aberdeen Addy Adna Airway Heights Amanda Park Anacortes Anatone Arlington Ashford Asotin

Real-time UV levels worldwide, with clear guidance to help you stay safe in the sun.

Disclaimer: UV readings, burn-time estimates, and product suggestions are general guidance only and are not medical advice. Individual risk varies depending on skin type, medications, altitude, and UV reflection. For personalized advice, consult a qualified healthcare professional.

© 2026 theuvindex.comUpdated every 15 minutes

Sunburn calculator

Select your skin type (Fitzpatrick scale):
Deep, almost never burns
Time to burn at UV 2.7
6h 47m
Unprotected skin. SPF 30 extends this ~30×, SPF 50 ~50×, when applied correctly.