The calculated distance (air line) between Póvoa de Varzim and Rio de Mouro is approximately 183 miles respectively 295 kilometers.
By car or train, the actual journey to Rio de Mouro is certainly longer, as only the direct route (as the crow flies) between Póvoa de Varzim and Rio de Mouro has been calculated here.
Air line (approximately)
295 kilometers
159 nautical miles