I think 12 August was about the sunniest day we've had since the solar panels got put on the roof. It's certainly the one with the best graph - it's nice and smooth and you can clearly see the "shoulders" in the morning and afternoon where the panels on the garage are shaded by the houses on either side; the couple of cloudy periods in the middle of the day are easy to ignore and don't prevent seeing the shape of the curve.
