At solar noon (12:45:29 PM) the sun reaches 39.6° above the horizon in Philadelphia. Without clouds, that corresponds to a maximum UV index of about 3.8 (moderate). Clouds usually lower the real value; snow, sand, water and altitude can raise it.
UV index in Philadelphia, next 14 days
| Date | Sun at noon | Clear-sky max | Forecast max |
|---|---|---|---|
| 39.6° | 3.8 Moderate | — | |
| 39.2° | 3.7 Moderate | — | |
| 38.8° | 3.6 Moderate | — | |
| 38.5° | 3.6 Moderate | — | |
| 38.1° | 3.5 Moderate | — | |
| 37.8° | 3.4 Moderate | — | |
| 37.5° | 3.4 Moderate | — | |
| 37.1° | 3.3 Moderate | — | |
| 36.8° | 3.2 Moderate | — | |
| 36.5° | 3.2 Moderate | — | |
| 36.1° | 3.1 Moderate | — | |
| 35.8° | 3.1 Moderate | — | |
| 35.5° | 3.0 Moderate | — | |
| 35.2° | 2.9 Low | — |
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 Philadelphia
Philadelphia, the largest city in Pennsylvania and seat of Philadelphia County, has existed as a municipality since 1682. As of 2020, the population was 1,603,797 people. The city spans 369.6 square kilometres and sits at an elevation of 12.0 metres. Key landmarks include the University of Pennsylvania, the heritage site Independence Hall, and Philadelphia International Airport. The municipality is situated on the Delaware River. Its international connections are represented through twin town agreements with Mosul, Florence, Tel Aviv, Toruń, and Tianjin. Infrastructure within the city includes the 30th Street Station, a multi-level interchange railway station.
AI-assisted description based on geographic data and editorial notes.