As you'll see by the chart down below, the weather within the Maldives tends to be nearly identical throughout, regardless of the month. The days tend to be quite warm and at least somewhat humid. The nights are known for being reasonably warm and a bit balmy.
Unlike most other tropical destinations, the Maldives is unique in that it has two different “monsoon” periods each year. Luckily, neither are known for any dramatic weather or flooding, so the differences are rather subtle. Even during what we would consider the non-monsoon periods, there will be some infrequent rainfall, so the overall consistency is what is most striking for the potential visitor. The best times to visit the Maldives really depends on your goals. With that said, honestly the entire year is a good time if you can make it out there.