Over 30 people were rescued after they were cut off by the tide at Ogmore-by-Sea on Saturday night.
The RNLI at Porthcawl said its D-class and Atlantic 85 lifeboats were launched on Saturday night to assist amid concerns that some would try to enter the water and cross at the river mouth.
The large group were stranded on the Porthcawl side of the river.
Both lifeboats also dealt with several incidents on the same evening to help paddleboarders in difficulty - they also took part in a search around the area following reports of people in difficulty in the water.
High temperatures led to numerous callouts for local lifeboat crews throughout the week.
Last Thursday, volunteers dealt with five incidents involving paddleboarders, including one in Southerndown where one person struggled in the tidal current off Witches Point.
Mike Cinderby, launch authority at RNLI Porthcawl, said: "If you’re visiting the coast check conditions and tide times before you go using a trusted online source, such as the Met Office."
"The Bristol Channel has the second largest tidal range in the world. We are currently experiencing spring tides which increases the speed the tide comes in and causes fast moving tidal currents. This puts the public at great risk of being cut off or getting into difficulty in fast moving tidal currents."
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