Thursday 14th August
Thankfully, the rise in temperature on Wednesday was restricted by thin high cloud that thickened late afternoon, as a result the thermometer reached a maximum of 25.8C, down 7C on the Tuesday peak. This high was the lowest since last Saturday and outside the Heatwave threshold although 3.7C above my August average. The UV factor was also down being the lowest this month with a value of 5.0, at the bottom end of ‘High’. The minimum of 14.7C was logged at 04.02 early Thursday, which was 3.5C above average.
Thursday arrived with low cloud draped over the Marlborough Downs and Savernake Forest. This moist, warm air had been brought on the southwesterly air stream after it had travelled over the eastern Atlantic. There was restricted sunshine due to the variable cloud first thing although after 08.15 the sun did begin to break through the occasional gap. The humidity reading at 08.00 was 92.8% being the highest this month.
The high pressure will relocate and change in area as the day progresses that will see the breeze veer towards the west-northwest later today and then northeast tomorrow, whilst the barometric pressure begins to build once again. The pressure reading at 08.00 was 1017.7mb and rising slowly.
The Savill Garden includes the Hidden Gardens, Spring Wood, the New Zealand Garden, Summer Wood, The Glades and Autumn Wood.