I think the make-or-break week in July for the Southampton area was not
the final week but the penultimate working week of 18th-22nd. The
forecasts suggested a continuation of the fine spell (and I think
that's what actually happened in the southwest) but the Monday and
Wednesday morning had intermittent light rain, and the Tuesday was
cloudy and cool.

If that week had been fine it would have changed the whole feel of July
even taking into account the cool, changeable first and last weeks.

June was predominantly fine here too, except the first 5 days or so.

Nick