Early in the morning? 6am etc...
Late in the night, 21, 22.h
The best time of day to water a garden is in the morning, since that gives the plants time to dry off before nightfall. It's cooler and winds tend to be calmer so water can soak into the soil and be absorbed by the grass roots before it can evaporate.Leaving water on plants overnight can lead to mold. Watering your garden at the right time and using the right method will keep your plants healthy.
Siempre por la mañana, justo en el momento en el que la temperatura deja de descender y empieza a suavizarse.
Aunque ya pasado el verano, poca ayuda