Sunshine focused through water droplets will burn leaves
The diffused rays of the sun are not powerful enough to cause burning. If it were the case that water droplets burned leaves, farmers would encounter huge losses after each daytime rainstorm. In fact, lawn care professionals often cool turf by spritzing water over the foliage during the hottest part of the day. In general, the best time to water most garden plants is early in the morning because of higher municipal water pressure, a lower evaporation rate, and the potential to reduce foliar diseases that often occur in overly moist situations. But if you are left with no other choice, watering midday will not harm your plants.