Speeding offences decreased 29% in urban areas in July compared to the same month last year, said GoSafe.
The combined offences on 20 and 30mph roads went down to 14,421 compared to 20,303 detected by fixed and mobile speed cameras, red-light cameras and average speed systems.
The statistics show average speed has also gone down along with recorded collision data from police sources with killed and injured numbers of people some 16% lower than July 2023.
There was an incident of a motorist recorded at 88mph in a 20mph zone in North Wales and 67mph in Mid and South Wales and the most severe incidents result in prosecution but most drivers get a warning and offer of an engagement course as alternative to points on their licence or a court appearance.
Fixed cameras have been adjusted to the new lower limit and have monitored 192,825 vehicles in 20mph zones across Wales since September 2023.
This summer, councils will tell Welsh Government where they want to return to the 30mph limit and no lower limits will be installed or enforcement action taken on 20mph where this is likely to be raised. Revised limits will begin to be seen from next month.
