About 30 beaches were closed Friday from Pittsfield to Yarmouth as temperatures feel like 100 degrees. A majority of the beaches were closed due to high bacteria levels, according to the state Department of Public Health.

However, if you're planning a weekend beach trip, you'll want to avoid the beaches closed due to unsafe swimming water. The Massachusetts Department of Public Health (MDPH) states that swimming in the water at these closed beaches poses a threat of illness due to high levels of bacteria.

Three dozen beaches in Massachusetts are closed to swimmers ahead of the weekend due to high bacteria levels. As of Friday, there were 36 beaches closed across the Bay State, according to the Massachusetts Department of Public Health’s interactive beach water quality dashboard.

Editor’s note: AI contributed to the production of this story under the supervision of our editors.

County health departments routinely collect water samples to test for bacteria levels to ensure water is safe for swimming.

Beaches remain closed until laboratory analysis shows bacteria levels are within the acceptable range for safe swimming. “Laboratory analysis for all beach samples takes approxi