Monsoon in Goa starts from June and ends in September. Goa sees maximum rainfall in those months. Most hotels and guest houses runs very cheap and sometime even at 50% less compared to season time. Monsoon in Goa is considered to be the best time to visit as you can spend much less for your holidays , you stay can be very cheap, Activities, Goa day trips, sightseeing during monsoon in Goa, Watersports in Goa can be very affordable and exciting. Weather is very cool and rainy.