Been there, done that Mark.
On a day we were due to fly home it was 42c in Sydney, I wanted to sit around in the park but my missus couldn't stand the heat so she made me leave 2 hours early so she could sit around in the air conditioned airport. I hate bloody airports.
She was much happier when we landed in Newcastle where it was raining and only 8c, Having spent 5 weeks getting acclimatized to the Ozzie weather, happy wasn't my mood. 