Sunny Hours / UV index / US / Tucson
UV index in Tucson, AZ today
Today's peak UV index in Tucson is 6 (high), around 1pm. It is 3 or above from 10am to 5pm, which is when the EPA recommends protecting your skin. Tomorrow's peak is 5 (moderate).
- UV now5 (moderate)
- Peak today6 (high)
- Time of peakAround 1pm
- Hours at 3 or above7
- Sunrise6:28 am
- Sunset5:49 pm
UV index in Tucson 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 | 4 | 5 | 6 | 6 | 6 | 5 | 3 | 1 |
| Sat, Oct 17 | 0 | 0 | 1 | 2 | 3 | 4 | 5 | 4 | 5 | 4 | 2 | 1 |
| Sun, Oct 18 | 0 | 0 | 0 | 0 | 1 | 1 | 2 | 1 | 1 | 0 | 2 | 1 |
| Mon, Oct 19 | 0 | 0 | 1 | 2 | 4 | 5 | 6 | 6 | 4 | 4 | 0 | 0 |
| Tue, Oct 20 | 0 | 0 | 0 | 2 | 4 | 5 | 6 | 6 | 5 | 4 | 2 | 1 |
| Wed, Oct 21 | 0 | 0 | 1 | 2 | 3 | 4 | 4 | 4 | 3 | 2 | 1 | 0 |
| Thu, Oct 22 | 0 | 0 | 1 | 2 | 3 | 4 | 4 | 4 | 3 | 3 | 2 | 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 | 6 | high | 10am to 5pm | 6:28 am | 5:49 pm |
| Sat, Oct 17 | 5 | moderate | 10am to 4pm | 6:29 am | 5:48 pm |
| Sun, Oct 18 | 2 | low | None | 6:29 am | 5:47 pm |
| Mon, Oct 19 | 6 | high | 10am to 4pm | 6:30 am | 5:46 pm |
| Tue, Oct 20 | 6 | high | 10am to 4pm | 6:31 am | 5:45 pm |
| Wed, Oct 21 | 4 | moderate | 10am to 3pm | 6:32 am | 5:44 pm |
| Thu, Oct 22 | 4 | moderate | 10am to 4pm | 6:32 am | 5:43 pm |
What today's level means
Today's peak of 6 is in the high 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 Tucson.
UV index in other cities
UV forecast for Tucson, Arizona. Updated October 16 at 3:29 PM. This is a forecast, not a measurement. Weather data by Open-Meteo.