Caught in the Catch-22 heat trap overnight:
35° by day, still 28° at 11 pm, no wind, went to bed with fans on & windows open but no great effect;
2.30 am thunderstorm, 85 kph gusts so closed windows, air stayed hot indoors;
7.30 am woke up, opened windows, 25° & muggy outside, no wind. Fans still on, no great effect.