The best time to visit Goa for beach tourism is during the winter, from November to March. The weather is pleasant during this time, with average temperatures ranging from 25 to 30 degrees Celsius. The beaches are also less crowded during the winter, making it a more enjoyable experience.
The summer months (April to June) are very hot and humid, with temperatures often exceeding 40 degrees Celsius. The beaches are also very crowded during this time, as many people travel to Goa to escape the heat of the mainland.
The monsoon season (July to September) is a time of heavy rains and strong winds. The beaches are often closed during this time, as they are not safe to swim in.
The spring months (October and November) are a good time to visit Goa if you are looking for a more affordable option. The weather is still pleasant during this time, but the beaches are more crowded than during the winter.