Grumo Nevano to San Severo trains might be a good value for money solution: travelling in Italy by train is often rather cheap and faster than taking a bus indeed Trains leave from Frattamaggiore-Grumo and arrive at S. Severo every about 2 hours on average. If travelling with Trenitalia, you need to know the Grumo Nevano to San Severo train schedule: the first train leaves at 08:16, while the last ride is at 18:15. A Grumo Nevano to San Severo train cost about 11.6 €. But how long is the train ride from Grumo Nevano to San Severo? Your journey takes about 4 hours on average.