Windrush Weather

Author: Eric Gilbert

  • Gloomy, dull and depressing day on Tuesday

    The thick cloud persisted for most of Tuesday as a result of the air mass running around the top of the high pressure in the Atlantic before heading for the UK and picking up moisture as it travelled. There was minimal sunshine of 1.4 hours with brief, drizzle / light rain mid-morning not measurable.

    The lack of sunshine and brisk wind from the west meant a cool day with the maximum of 19.1C being 2C below average.

    The thick cloud overnight and minimal wind gave us the warmest night since 27th July with a low of 14.8C being 3.1C above average. This resulted in the warmest start to a day at 0800 this month with the thermometer reading 16.4C.

  • Cool northwesterly wind set in on Monday

    With the wind coming from the northwest on Monday it was not surprising to find a below average maximum (-1.2C) with a peak of 19.9C. In addition, the long run of wind from the Atlantic brought more cloud although it did brighten up mid-morning and eventually we received 8.9 hours of sunshine with the UV level very briefly nudging into the Very High category. It was a dry day, the seventh this month.

    The overnight low was also below average, but only just (-0.2C), with a minimum of 11.5C.

    Tuesday brought an overcast start to the day with the wind backing a few degrees into the west.

  • Significant change in wind direction

    After a bright morning on Sunday drizzle and light rain arrived late afternoon but only amounting to 0.5mm. That addition brought the monthly total to 44.2m when the average is 66.9mm.

    Temperatures by day and night were again below average with a peak of 20.6C(-0.5C) and low of 10.C(-0.8C). Those figures were down 3C by day and night compared to the Saturday temperatures.

    Monday, although starting cloudy and dull, saw the sun break through just before 0830. However, the significant change has been the wind that having been in the southwest quadrant for two weeks has veered into the west-northwest and later the northwest, a chilly direction, even in our so called summer.

  • Warmth returned with more sunshine on Saturday

    Before it began to fall away the short lived ridge of high pressure on Saturday gave us 6.2 hours of sunshine and the UV level of 7.5 was the highest since 27th July being rated at Very High.

    Both the maximum of 23.9C (+2.8C) and minimum of 14.2C (+2.5C) were above average. It was the warmest night this month equal to the 6th.

    Sunday after dawn saw very light drizzle falling, not measurable, that limited visibility to around 1,200m but by 0730 had cleared. The thermometer by 0800 had risen to 16.1C making it the warmest start to a day at that time since 27th July.

  • High Pressure builds but minimal sunshine

    Usually with barometric pressure at 1020+mb we enjoy much sunshine and warmth however, Friday was similar to previous days with mainly overcast skies, just 4.7 hours of sunshine, but it was dry. The notable feature on Friday was the UV level peaked at 7.4, which was rated Very High, the highest since 29th July.

    Saturday arrived again with overcast skies but less wind and backing into the southwest. After a warm night, when the thermometer did not drop below 13.6C, the temperature at 0800 was 16.0C, the warmest start to a day at that time since 23rd July. The barometric pressure peaked at 1022.5mb late on Friday.