At solar noon (01:21:05 PM) the sun reaches 40.3° above the horizon in Santiago dos Velhos. Without clouds, that corresponds to a maximum UV index of about 3.9 (moderate). Clouds usually lower the real value; snow, sand, water and altitude can raise it.
UV index in Santiago dos Velhos, next 14 days
| Date | Sun at noon | Clear-sky max | Forecast max |
|---|---|---|---|
| 40.3° | 3.9 Moderate | — | |
| 39.9° | 3.9 Moderate | — | |
| 39.6° | 3.8 Moderate | — | |
| 39.2° | 3.7 Moderate | — | |
| 38.9° | 3.7 Moderate | — | |
| 38.5° | 3.6 Moderate | — | |
| 38.2° | 3.5 Moderate | — | |
| 37.9° | 3.5 Moderate | — | |
| 37.5° | 3.4 Moderate | — | |
| 37.2° | 3.3 Moderate | — | |
| 36.9° | 3.3 Moderate | — | |
| 36.6° | 3.2 Moderate | — | |
| 36.2° | 3.2 Moderate | — | |
| 35.9° | 3.1 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 Santiago dos Velhos
Santiago dos Velhos is a civil parish located in the municipality of Arruda dos Vinhos, within the Lisbon region of Portugal. The parish covers an area of 16.1 square kilometers. According to 2021 census data, the population of the area stands at 1,289 people. The Fort of Carvalha, which is classified as cultural heritage, is a notable feature within the parish boundaries. The administrative unit has existed as a municipality since its establishment within the broader Arruda dos Vinhos area.
AI-assisted description based on geographic data and editorial notes.