Download the UV Index Today app - Get daily UV alerts

UV Index for Sammamish, WA

Current Sammamish UV Index

0 (Low)

Last Updated 14 minutes ago

Download the UV Index Today app - Get daily UV alerts

Hourly Sammamish UV Index

The hourly Sammamish, WA UV Index forecast for Tuesday, May 12th, 2026.

5 Day Hourly Sammamish UV Index Forecast

Last Updated 2 days ago