Download the UV Index Today app - Get daily UV alerts

UV Index for Castine, ME

Current Castine UV Index

0 (Low)

Last Updated 45 minutes ago

Download the UV Index Today app - Get daily UV alerts

Hourly Castine UV Index

The hourly Castine, ME UV Index forecast for Tuesday, September 1st, 2026.

5 Day Hourly Castine UV Index Forecast

Last Updated 1 day ago