Barnstable County, MA: Current UV Index and Hourly Forecast

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As of 12:37 PM EDT on April 22, 2026, out of 31 cities in Barnstable County, MA in our database, 28 cities (90%) have a UV Index reading of Moderate, while 3 cities (10%) have a UV Index reading of Low. The city with the highest UV Index reading right now is East Harwich, MA with a reading of 4.5.

Over the next 24 hours, the highest UV Index reading in Barnstable County, MA is expected to be 4.7 in South Yarmouth between 11:00 AM - 12:00 PM EDT tomorrow.

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Current UV Index in Cities in Barnstable County, MA

• Buzzards Bay - 2.6
• Dennis Port - 3.6
• East Dennis - 3.6
• East Falmouth - 2.7
• East Harwich - 4.5
• East Sandwich - 2.6
• Forestdale - 2.6
• Harwich Center - 4.5
• Harwich Port - 4.5
• Mashpee Neck - 2.7
• Monomoscoy Island - 2.7
• Monument Beach - 2.6
• New Seabury - 2.7
• North Eastham - 4.5
• North Falmouth - 1.3
• Northwest Harwich - 4.5
• Pocasset - 2.6
• Popponesset - 2.7
• Popponesset Island - 2.7
• Sagamore - 2.6
• Seabrook - 2.7
• Seconsett Island - 2.7
• South Dennis - 3.6
• South Yarmouth - 3.6
• Teaticket - 2.7
• West Chatham - 4.5
• West Dennis - 3.6
• West Falmouth - 1.3
• West Yarmouth - 3.6
• Woods Hole - 1.3
• Yarmouth Port - 3.6