No doubt it's going to be rainy and an irritating weather.The conditions are generally humid and you'll feel it in your body. But if you just give a damn about weather, then goa is definitely on.
The vibes of goa are on throughout the year.
All the best.
I visited in Monsoon in 2019 it's different and so beautiful that time not so crowded but go to North side only best experience will be from October to February. But greenery and Dudhsagar is best in monsoon