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."

Post Office Seeks New Operator in Dinas Powys as Village Faces Loss of Its Last Branch
Gardening team praised after helping police clear fallen tree near St Brides Major
Specsavers calls on children in Barry to design Wales Deaf Rugby World Cup shirts
Whitmore High Named One of UK’s Best Workplaces for Development
Steel Signing Marks Major Milestone in St Richard Gwyn School Redevelopment
Two Rescues in Record Heat as Volunteer Teams Respond to Afternoon Emergencies
Police find evidence of a large-scale cannabis cultivation at Riverside Place property fire
Network Rail confirm closure of Brookside level crossing in Dinas Powys
Police given powers to ask people to leave Comeston Lakes Country Park
Planned children’s role play centre could be given the go-ahead by Vale Council
Marie Curie Garden Fayre deemed huge success
Council seeks views on Future of Colcot Sports Centre and Buttrills Playing Fields
First Minister quizzed on further devolution, budget decisions, and misinformation in FMQs
Extreme heat leads to changes to services and closures
Severe Heat Warning Set to Disrupt Rail Travel Across South Wales This Week
Communities asked to support older people across Wales during severe heat warning
Caribbean Community Wales Brings Wales‑Wide Launch to Barry This Weekend
Community Award winner calls for sanitary bins in men’s toilets after living with prostate‑cancer‑related incontinence
Cardiff Airport Backs Holiday Safety Campaign Honouring Rhoose Teenager Tom Channon