At solar noon (12:16:16 PM) the sun reaches 58.1° above the horizon in Honolulu. Without clouds, that corresponds to a maximum UV index of about 8.5 (very high). Clouds usually lower the real value; snow, sand, water and altitude can raise it.
UV index in Honolulu, next 14 days
| Date | Sun at noon | Clear-sky max | Forecast max |
|---|---|---|---|
| 58.1° | 8.5 Very High | — | |
| 57.8° | 8.4 Very High | — | |
| 57.4° | 8.3 Very High | — | |
| 57.0° | 8.3 Very High | — | |
| 56.7° | 8.2 Very High | — | |
| 56.4° | 8.1 Very High | — | |
| 56.0° | 8.0 Very High | — | |
| 55.7° | 7.9 High | — | |
| 55.3° | 7.9 High | — | |
| 55.0° | 7.8 High | — | |
| 54.7° | 7.7 High | — | |
| 54.4° | 7.6 High | — | |
| 54.0° | 7.6 High | — | |
| 53.7° | 7.5 High | — |
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.
High UV today? Sport sunscreen with SPF 100 stays on through sweat — essential for long outdoor activities.
View on Amazon →About Honolulu
Honolulu is the capital city of the U.S. state of Hawaii and serves as the seat of Honolulu County. Covering an area of 177.2 square kilometers at an elevation of 12 meters, the city recorded a population of 350,964 in 2020. The landscape is marked by the mountain known as Diamond Head. Infrastructure includes the Daniel K. Inouye International Airport, while educational facilities include the University of Hawaiʻi at Mānoa. The city maintains twin town agreements with Bruyères, Caracas, Seoul, Sintra, and Uwajima. Local landmarks feature the ʻIolani Palace, which stands alongside other structures like the First Hawaiian Center and the Cathedral Basilica of Our Lady of Peace.
AI-assisted description based on geographic data and editorial notes.