Barnstable County, MA: Current UV Index and Hourly Forecast

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As of 9:30 AM EDT on August 18, 2025, all 31 cities in Barnstable County, MA in our database have a UV Index reading of Low. The city with the highest UV Index reading right now is West Falmouth, MA with a reading of 1.4.

Over the next 24 hours, the highest UV Index reading in Barnstable County, MA is expected to be 8.3 in West Falmouth between 1:00 PM - 2:00 PM EDT today.

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Current UV Index in Cities in Barnstable County, MA

• Buzzards Bay - 1
• Dennis Port - 1.2
• East Dennis - 1.2
• East Falmouth - 1.3
• East Harwich - 1.3
• East Sandwich - 1
• Forestdale - 1
• Harwich Center - 1.3
• Harwich Port - 1.3
• Mashpee Neck - 1.3
• Monomoscoy Island - 1.3
• Monument Beach - 1
• New Seabury - 1.3
• North Eastham - 1.3
• North Falmouth - 0.9
• Northwest Harwich - 1.3
• Pocasset - 1
• Popponesset - 1.3
• Popponesset Island - 1.3
• Sagamore - 1
• Seabrook - 1.3
• Seconsett Island - 1.3
• South Dennis - 1.2
• South Yarmouth - 1.2
• Teaticket - 1.3
• West Chatham - 1.3
• West Dennis - 1.2
• West Falmouth - 1.4
• West Yarmouth - 1.2
• Woods Hole - 1.4
• Yarmouth Port - 1.2