Online training provider High Speed Training analysed Food Standards Agency data for more than 240,000 UK food businesses.
Wales ranked seventh overall, with an average score of 4.47 from more than 13,000 premises.
This has improved from a score of 4.45 in a similar 2024 study.
The biggest improver in Wales was Torfaen, which improved its average score by 0.19, though it still placed in the bottom half of the local authorities list.
Newport, which is now ranked 8th in the country, had the biggest improvement in ranking, moving up 4 positions from its 2024 rank of 12th.
However, it wasn’t all good news.
Blaenau Gwent recorded the lowest average score of 3.94.
Paul Turner, environmental health officer for North Yorkshire Council, said: “Since its inception 15 years ago, the Food Hygiene Rating Scheme has played a pivotal role in improving standards across the UK.
“We are also always pushing to make the display of food hygiene ratings in England mandatory, as it is in Wales and Northern Ireland, to ensure that consumers have all the information they need to make informed choices about where to spend their hard-earned money.”
Dr Richard Anderson, head of learning and development at High Speed Training, said: “Food safety and robust hygiene practices should be of paramount importance to food businesses, and to the customers who use them.
“Our report shows that, on average, standards remain high across the UK, and have improved from 2024.
“We would also urge customers to check the food hygiene ratings of establishments they wish to dine at.”
The report highlighted that more than 25 per cent of Welsh takeaways scored 3 or below in their food hygiene rating, with 36 premises receiving a zero score.