At solar noon (11:56:16 AM) the sun reaches 80.8° above the horizon in Castanhal. Without clouds, that corresponds to a maximum UV index of about 13.0 (extreme). Clouds usually lower the real value; snow, sand, water and altitude can raise it.
UV index in Castanhal, next 14 days
| Date | Sun at noon | Clear-sky max | Forecast max |
|---|---|---|---|
| 80.8° | 13.0 Extreme | — | |
| 80.4° | 13.0 Extreme | — | |
| 80.1° | 12.9 Extreme | — | |
| 79.7° | 12.9 Extreme | — | |
| 79.4° | 12.9 Extreme | — | |
| 79.0° | 12.8 Extreme | — | |
| 78.7° | 12.8 Extreme | — | |
| 78.4° | 12.8 Extreme | — | |
| 78.0° | 12.7 Extreme | — | |
| 77.7° | 12.7 Extreme | — | |
| 77.4° | 12.6 Extreme | — | |
| 77.0° | 12.6 Extreme | — | |
| 76.7° | 12.6 Extreme | — | |
| 76.4° | 12.5 Extreme | — |
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 Castanhal
Castanhal is located in the state of Pará, Brazil. The municipality covers an area of 1029.2 square kilometres and sits at an elevation of 141 metres above sea level. It has existed as a municipality since 1932 and records a population of 209,126 residents as of 2025. Notable features within the municipal boundaries include the Estádio Maximino Porpino Filho, which serves as a stadium, and the Cathedral of Mary Mother of God, a Catholic cathedral. These sites represent the primary infrastructure for sporting and religious activities within the local area.
AI-assisted description based on geographic data and editorial notes.