Set up a schedule. Observe the garden soil to see how quickly it dries. You may have to water only weekly, or every five days in spring. But in summer, your vegetables may need water as often as every three or four days in very hot, windy conditions with low humidity. Even in May we have some weeks that are very dry with relative humidity below 35 percent and temperatures in the upper 70s or 80s.
Consistency is the golden rule for watering.