Sunny Hours / UV index / US / Seattle
UV index in Seattle, WA today
The UV index in Seattle is 0 all day today. Tomorrow's peak is 4 (moderate).
- UV now0 (low)
- Peak today0 (low)
- Hours at 3 or above0
- Sunrise7:19 am
- Sunset6:32 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 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Sat, Oct 10 | 0 | 0 | 1 | 1 | 2 | 2 | 4 | 3 | 3 | 2 | 1 | 1 |
| Sun, Oct 11 | 0 | 0 | 1 | 2 | 3 | 4 | 4 | 4 | 3 | 3 | 2 | 1 |
| Mon, Oct 12 | 0 | 0 | 1 | 2 | 3 | 3 | 4 | 4 | 3 | 3 | 1 | 1 |
| Tue, Oct 13 | 0 | 0 | 1 | 2 | 3 | 3 | 3 | 4 | 3 | 2 | 1 | 1 |
| Wed, Oct 14 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 0 |
| Thu, Oct 15 | 0 | 0 | 1 | 2 | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 1 |
- 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 | 0 | low | None | 7:19 am | 6:32 pm |
| Sat, Oct 10 | 4 | moderate | 1pm to 4pm | 7:21 am | 6:30 pm |
| Sun, Oct 11 | 4 | moderate | 11am to 5pm | 7:22 am | 6:28 pm |
| Mon, Oct 12 | 4 | moderate | 11am to 5pm | 7:24 am | 6:26 pm |
| Tue, Oct 13 | 4 | moderate | 11am to 4pm | 7:25 am | 6:24 pm |
| Wed, Oct 14 | 2 | low | None | 7:27 am | 6:22 pm |
| Thu, Oct 15 | 3 | moderate | 11am to 4pm | 7:28 am | 6:20 pm |
What today's level means
Today's peak of 0 is in the low band. The guidance for that band is: no protection needed. 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 9 at 1:41 PM. This is a forecast, not a measurement. Weather data by Open-Meteo.