At your request, information on travel by train can be found on the website en.voyages-sncf.com/en/

Here is what the search for date 05/11:

One transfer at Vintimille station, the fare is about 15 EUR per ticket, the journey time is 1 hour and 18 minutes.

On a bus trip, try to see the information on the website www.volpibus.com/orari.asp/l/50.

It is also possible to organize an individual transfer.

Trains from Nice to San Remo run all year round, almost every two hours, the journey time is from 1 hour 10 minutes with one transfer.

The bus is on the route Nice - Genoa, the journey time is about 4 hours.