Sunny Hours / UV index / US / San Jose
UV index in San Jose, CA today
Today's peak UV index in San Jose is 3 (moderate), around 12pm. It is 3 or above from 11am to 3pm, which is when the EPA recommends protecting your skin. Tomorrow's peak is 2 (low).
- Peak today3 (moderate)
- Time of peakAround 12pm
- Hours at 3 or above3
- Sunrise6:33 am
- Sunset5:08 pm
UV index in San Jose 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.
| 6a | 7a | 8a | 9a | 10a | 11a | 12p | 1p | 2p | 3p | 4p | 5p | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Today | 0 | 0 | 1 | 2 | 2 | 3 | 3 | 2 | 3 | 2 | 1 | 0 |
| Tue, Nov 3 | 0 | 0 | 1 | 0 | 1 | 1 | 2 | 1 | 1 | 2 | 1 | 0 |
| Wed, Nov 4 | 0 | 0 | 1 | 2 | 3 | 4 | 4 | 4 | 4 | 3 | 1 | 0 |
| Thu, Nov 5 | 0 | 0 | 1 | 2 | 3 | 4 | 4 | 4 | 4 | 3 | 1 | 0 |
| Fri, Nov 6 | 0 | 0 | 1 | 2 | 3 | 4 | 4 | 4 | 3 | 2 | 1 | 0 |
| Sat, Nov 7 | 0 | 0 | 1 | 2 | 3 | 4 | 4 | 4 | 3 | 3 | 1 | 0 |
| Sun, Nov 8 | 0 | 0 | 1 | 2 | 3 | 4 | 4 | 4 | 3 | 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 | 11am to 3pm | 6:33 am | 5:08 pm |
| Tue, Nov 3 | 2 | low | None | 6:34 am | 5:07 pm |
| Wed, Nov 4 | 4 | moderate | 10am to 4pm | 6:35 am | 5:06 pm |
| Thu, Nov 5 | 4 | moderate | 10am to 4pm | 6:36 am | 5:05 pm |
| Fri, Nov 6 | 4 | moderate | 10am to 3pm | 6:37 am | 5:04 pm |
| Sat, Nov 7 | 4 | moderate | 10am to 4pm | 6:38 am | 5:03 pm |
| Sun, Nov 8 | 4 | moderate | 10am to 3pm | 6:39 am | 5:02 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 San Jose.
UV index in other cities
UV forecast for San Jose, California. Updated November 2 at 5:33 AM. This is a forecast, not a measurement. Weather data by Open-Meteo.