Raining season is back?

Since I left Panama in mid December it wasn't raining here. Not even a one rain drop. On one side it means, that the temperature is a little bit higher (around 35 degrees, but at Seminario Introductorio we got 41), which is not very pleasant for me, on the other hand I don't want to complain, because I know, what is expecting me, when the raining season will start again. The temperatures will be around 30 degrees, but the humidity will be reaching almost 100%, and when it starts raining, the air is so heavy, that it is hard to breathe and you can see the drops of sweat appearing at your body... Therefore I am OK with the weather right now and trying to ignore the high temperatures...
The question is, for how long, because yesterday it rained. Actually it wasn't rain, it was monsoon. After the rain I realized, how good weather was the whole January and February. People told me, that the raining season should start at the end of April, so I really hope they are right.