Download the UV Index Today app - Get daily UV alerts

UV Index for Southwest Harbor, ME

Current Southwest Harbor UV Index

0 (Low)

Last Updated 11 minutes ago

Download the UV Index Today app - Get daily UV alerts

Hourly Southwest Harbor UV Index

The hourly Southwest Harbor, ME UV Index forecast for Thursday, June 18th, 2026.

5 Day Hourly Southwest Harbor UV Index Forecast

Last Updated 21 hours ago