Met Office figures suggest last month was the UK's sixth wettest on record - making potholes harder to spot for drivers and hindering repair work.
The number of pothole-related breakdowns jumped to a five-year high due to one of the wettest months of July on record, figures suggest.
The AA said it received 50,079 callouts to vehicles stranded due to faults likely caused by potholes last month.
That is up by nearly a fifth from 41,790 in July 2022 and is the most for that month since 2018.
Common problems caused by potholes include damaged shock absorbers, broken suspension springs and distorted wheels.
Met Office figures suggest last month was the UK's sixth wettest July on record.
This would have made potholes harder to spot for drivers and hindered repair work, according to the AA.
Jack Cousens, head of roads policy at the breakdown cover company, said: "July's rainfall caused more headaches for drivers with tyres, suspensions and steering mechanisms all being damaged as the rain and puddles hid the potholes lurking underneath.
"Councils would've been hoping for a dry summer so they could get as much repair work carried out before the real autumn and winter weather hits.
"They will now be under more pressure to get their planned works completed before the weather really turns against them.
"With 2023 looking to be one of the worst years on record for pothole damage, we need to see more investment in local roads maintenance funding.
"As well as the financial damage to vehicles, at this time of year we also see more cyclists and motorbike riders on the roads, where the damage can sadly be fatal."