The early morning (8.00 am) temperature was 19.6 ºC with a falling humidity of 93% with not even a breeze (Light Air, Force 1) and light rain at 1.5 mm an hour. The early morning Heat Index was 22.9 ºC. (The Heat Index caution level is about 25 ºC.)
Shoreham Beach Weather Station http://www.softwair.co.uk/weather/index.htm