Morning All. (Well it is here)
Tina. with plants in pots, I find the easiest way to test them to see if they need water is simply pick them up. If they feel light, they will probably need a drop. I have found after a while you get to know the weight, and when they need watering. I don't think I could take the heat you get over there, let alone the plants. Good old British weather with lots of rain.
John