UV Index in Seattle
Real-time UV forecast & tanning weather
Current Conditions
Loading live weather data...Weather data by Open-Meteo (CC BY 4.0)
Monthly UV Index in Seattle
Average daily maximum UV index by month
Jan
3
Moderate
Feb
3
Moderate
Mar
4
Moderate
Apr
5
Moderate
May
7
High
Jun
8
Very High
Jul
8
Very High
Aug
8
Very High
Sep
7
High
Oct
5
Moderate
Nov
4
Moderate
Dec
3
Moderate
Best Months to Tan in Seattle
Based on average UV levels, the best months for tanning in Seattle are:
April Good
May Great
June Great
July Great
August Great
September Great
October Good
Rating based on average monthly UV index
Tanning Guide for Seattle
Seattle's climate offers a good tanning window from April to October, but its famously overcast skies mean you'll need to be strategic about catching the rays. Seek out unobstructed sun on a clear afternoon, perhaps at Golden Gardens Park, to make the most of available UV.
Seattle has a distinct tanning season from April to October. Winter UV is too low for effective tanning.
Related Guides
Frequently Asked Questions
What is the UV index in Seattle right now?
The current UV index in Seattle is shown in the live weather section above. UV levels change throughout the day, typically peaking between 11 AM and 2 PM local time.
What is the best month to tan in Seattle?
The best months for tanning in Seattle are April, May, June, July, August, September, October, when average UV levels reach 5 or higher.
How long should I tan in Seattle?
Tanning time depends on your skin type and the current UV index. For a moderate UV of 7, a person with Skin Type III (medium complexion) can safely tan for about 21 minutes per session. Use our Tanning Calculator for personalized recommendations.
Is it safe to tan in UV index 8?
UV index 8 is classified as Very High. Very High — avoid prolonged sun exposure. Short tanning sessions with SPF 50+ recommended.
When is the peak UV time in Seattle?
UV levels in Seattle typically peak between 11:00 AM and 2:00 PM local time. The exact peak depends on the season, cloud cover, and altitude.
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