It sounds like you might be describing something called "guttation". This is a natural process in plants where tiny droplets of water appear on the edges of leaves, particularly in the early morning. It's not just taro leaves that do this, but many other types of plants as well.

Here's why guttation happens:

* Root pressure: Plants absorb water through their roots, and this creates pressure within the plant.

* High humidity: When the air is humid, plants don't lose as much water through transpiration (evaporation from leaves).

* Low transpiration: At night, plants don't transpire as much because there's less sunlight for photosynthesis.

* Excess water: If the soil is very moist, plants may absorb more water than they can use.

This combination of factors leads to the water being pushed out of the leaves through tiny openings called hydathodes, which are located on the leaf margins.

So, it's not that the taro leaf is getting "wet with water", but rather that the water is being pushed out of the leaf itself. It's a normal process, and nothing to be concerned about.