August 2021 and summer weather stats for the Western Isles.

Hello and welcome to a look back at our weather in August 2021 – We cover the Western Isles and take a look at the rest of the UK’s weather further down in the blog.

August continued the dry trend across the Western Isles. High pressure was the dominating story. We had a couple or wet days. It was a fairly cool month as well.

Stornoway airport and South Uist Met Office site stats.

Stornoway Airport Met Office site recorded 99.4 hours of sunshine. The dullest August since 2010 which had 89.6 hours. 47 mm of rain fell during August. 104.6 mm of rain fell during June, July and August. Giving possible the driest summer in over 150 years ( awaiting verification on this).

South Uist range recorded 52 mm of rain during August.

SEPA rainfall Gauges in the Western Isles for August

Creed Bridge – 8.8 mm

Birkie Hue – 56.6 mm

Laxdale Harris – 107.2 mm

Mill Croft – 94.8 mm

Daily records

We had one daily record during August with 13.9 hours of sunshine in Stornoway on the 8th.

Weather Warnings year to date

We had no weather warnings during the month of July. 

The total number of weather warnings to date for the year for the Western Isles stands at 18.

Yellow – 18

Amber – 0

Red – 0

A further break down of the warnings.

Wind – 7

Snow and Ice – 9

Rain – 0

Thunderstorms – 0

Wind and snow – 0

Ice – 2

The highest and low temps of the month

Stornoway – High 17.9C and low 9.3C

South Uist – High 19.0C – low 6.7C

Temperature graphs for the month for Stornoway and South Uist

Above image credits to Roost weather http://starlingsroost.asuscomm.com/weather/ukobs/ukgraphs.php?synop=03026&startdate=2021-08-01&starttime=00%3A00&enddate=2021-09-01&endtime=00%3A00&datatype=SYNOP

Met Office UK wide stats.

Summer was very dry for us in the Western Isles and we were below average for Sunshine for Lewis and Harris but not for Uist and Barra.

Sunshine was above average for much of the Uist and Barra. Harris was about average and much of Lewis was below average during August.

Map showing sunshine hours anomaly across the UK for August 2021

You can also see how dry the month was for much of the Western Isles

Maps showing rainfall anomaly and rain days across the UK for August 2021

The highest August temperature was recorded in Scotland according to the Met Office below

It is quite unusual for the highest temperature of August to occur in Scotland, but the suppressed temperatures in the south of England mean that 27.2°C recorded at Tyndrum on 25 August is the highest temperature recorded in the UK during August 2021, and is the lowest such value since August 2010.

More here https://www.metoffice.gov.uk/about-us/press-office/news/weather-and-climate/2021/one-of-the-hottest-summers-on-record-for-scotland-and-northern-ireland

Thank you for reading. Any Feedback is welcome

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