Your watering schedule for your monsteras will vary vastly based on many factors. The size of your pot, your soil mix, the light levels, the season and the size of your plant.
Obviously, if your pot size is small you’ll need to water the plant more frequently. If your soil mix is well draining, you’ll need to water your plant more often than one that is just in soil. Based on the kind of light your monstera is receiving , you’ll want to water it less frequently in low light than if it were somewhere with bright light. Depending on the weather, you’ll water your plant less if it’s cold than when it’s warm. And when your plant is large, it may need to be watered more frequently.
Those are a lot of things to consider, and since the weather is always changing and your plant is continually growing, you might find yourself overwhelmed with all these considerations. Therefore, I’ll break it down to just one simple thing.
Stick your finger in the soil and see if the top 2-3 inches are dry. If it is dry, then water your plant, if it’s moist, wait till it dries.
You don’t want your soil to constantly be wet. This will encourage root rot and pests to breed in your soil. So definitely wait for your soil to dry before you water it again.