Sunny Hours / UV index / US / Seattle
UV index in Seattle, WA today
Today's peak UV index in Seattle is 3 (moderate), around 1pm. It is 3 or above from 12pm to 4pm, which is when the EPA recommends protecting your skin. Tomorrow's peak is 2 (low).
- UV now3 (moderate)
- Peak today3 (moderate)
- Time of peakAround 1pm
- Hours at 3 or above4
- Sunrise7:29 am
- Sunset6:19 pm
UV index in Seattle by hour, next 7 days
Each square is one daylight hour and the number in it is the UV index for that hour. The numbers across the top are the hour of the day.
| 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | 6p | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Today | 0 | 0 | 1 | 1 | 2 | 3 | 3 | 3 | 3 | 2 | 1 | 0 |
| Sat, Oct 17 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 2 | 1 | 0 |
| Sun, Oct 18 | 0 | 0 | 1 | 1 | 2 | 3 | 3 | 3 | 3 | 2 | 1 | 0 |
| Mon, Oct 19 | 0 | 0 | 0 | 1 | 2 | 3 | 3 | 3 | 3 | 2 | 1 | 0 |
| Tue, Oct 20 | 0 | 0 | 0 | 1 | 1 | 2 | 2 | 3 | 2 | 2 | 1 | 0 |
| Wed, Oct 21 | 0 | 0 | 1 | 1 | 2 | 3 | 3 | 3 | 3 | 2 | 1 | 0 |
| Thu, Oct 22 | 0 | 0 | 0 | 1 | 2 | 3 | 3 | 3 | 2 | 2 | 1 | 0 |
- Low (1 to 2)
- Moderate (3 to 5)
- High (6 to 7)
- Very high (8 to 10)
Day by day
| Day | Peak UV | Level | At 3 or above | Sunrise | Sunset |
|---|---|---|---|---|---|
| Today | 3 | moderate | 12pm to 4pm | 7:29 am | 6:19 pm |
| Sat, Oct 17 | 2 | low | None | 7:31 am | 6:17 pm |
| Sun, Oct 18 | 3 | moderate | 12pm to 4pm | 7:32 am | 6:15 pm |
| Mon, Oct 19 | 3 | moderate | 12pm to 4pm | 7:34 am | 6:13 pm |
| Tue, Oct 20 | 3 | moderate | 2pm to 3pm | 7:35 am | 6:11 pm |
| Wed, Oct 21 | 3 | moderate | 12pm to 4pm | 7:37 am | 6:09 pm |
| Thu, Oct 22 | 3 | moderate | 12pm to 3pm | 7:38 am | 6:07 pm |
What today's level means
Today's peak of 3 is in the moderate band. The guidance for that band is: seek shade around midday, cover up and wear sunscreen. The EPA recommends protecting your skin whenever the index is 3 or higher, and you can burn even when it is cloudy.
The UV index depends mostly on how high the sun is in the sky, so it peaks around the middle of the day and is far higher in summer than in winter. It is not the same as temperature. For the full scale and what it means for tanning and burning, see what the UV index numbers mean.
UV tells you how strong the sun is, not whether it will be out. For that, see the sunshine forecast for Seattle.
UV index in other cities
UV forecast for Seattle, Washington. Updated October 16 at 3:29 PM. This is a forecast, not a measurement. Weather data by Open-Meteo.