Before watering, feel the top of the soil. If its dry water, if its wet wait.
When watering, saturate the soil until water is draining out the bottom of the container.
Watering should be done in the morning or evening to allow the water to reach the roots of the plants before evaporating.
Cool seasons require watering less often but in the hot summer heat, watering is needed almost daily. Feeling the soil as you walk by will give you an idea of the frequency and routine they need.