Rain stops play

Woke up at 6:30 and the weather was fine. Had a leisurely breakfast and the weather was fine. Did the washing up and the...

Well, you get the picture.

10:30 and it starts to rain!

Looks like a day off today.

The trouble is that on the one hand we need the rain to top up the reservoirs but on the other hand, we want to be moving without getting soaked.

Why can't it only rain at night?