At solar noon (12:52:58 PM) the sun reaches 42.1° above the horizon in Cupertino. Without clouds, that corresponds to a maximum UV index of about 4.3 (moderate). Clouds usually lower the real value; snow, sand, water and altitude can raise it.
UV index in Cupertino, next 14 days
| Date | Sun at noon | Clear-sky max | Forecast max |
|---|---|---|---|
| 42.1° | 4.3 Moderate | — | |
| 41.8° | 4.3 Moderate | — | |
| 41.4° | 4.2 Moderate | — | |
| 41.1° | 4.1 Moderate | — | |
| 40.7° | 4.1 Moderate | — | |
| 40.4° | 4.0 Moderate | — | |
| 40.0° | 3.9 Moderate | — | |
| 39.7° | 3.9 Moderate | — | |
| 39.4° | 3.8 Moderate | — | |
| 39.0° | 3.7 Moderate | — | |
| 38.7° | 3.7 Moderate | — | |
| 38.4° | 3.6 Moderate | — | |
| 38.1° | 3.5 Moderate | — | |
| 37.8° | 3.5 Moderate | — |
Clear-sky values are calculated from the sun's height at solar noon (cloud-free sky, average ozone). Forecast values from Open-Meteo include clouds and load in your browser.
Bright conditions call for proper eye protection. Polarized lenses reduce glare and block harmful UV rays.
View on Amazon →About Cupertino
Located in the United States, within the state of California, Cupertino is a city in Santa Clara County. It covers an area of 300.0 square kilometres and has existed as a municipality since 1947. As of 2020, the population is 60,381. Notable locations in the city include Apple University, the Saint Joseph of Cupertino Parish church building, and Hoover Park. The city maintains formal twinning arrangements with Copertino, Hsinchu City, Toyokawa, Bhubaneswar, and Yueyang.
AI-assisted description based on geographic data and editorial notes.