British Isles weather diary

British Isles weather diary

Recent temperature, rainfall and sunshine extremes over the British Isles (Note: figures in parentheses give an indication, from first reports, of the spread of daily max and min temperatures, min daytime temperatures (occasionally), rainfall and sunshine in the 24 hours ending 2100 GMT.)

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British Isles weather, July 2018

Shallow low pressure centres remained close to Ireland on the 28th and, after a warm night in E parts of England and Scotland in particular, the day was much cooler than recently. There were widespread showers overnight and during the day, with some heavy rain in places. During the afternoon over Northern Ireland the axis of a sharp upper cold pool just behind a depression crossed the area leading to very heavy rainfall (88.2 mm of rainfall was recorded in a few hours at Aldergrove) that led to flooding to the Belfast area. Thunderstorms occurred in places. There was some sunshine - especially in S Ireland, East Anglia and SE England. Homes were flooded in County Antrim and traffic brought to a standstill. Ryanair was forced to cancel a number of flights from the airport. Trains from Edinburgh to London Kings Cross were cancelled after a lightning strike damaged signalling equipment in NE England. (Weybourne 24.0C, Tredegar Bryn Bach Park 14.2C maximum, Okehampton 8.9C minimum, Aldergrove 98.8 mm, Herstmonceux 11.6 h.)

Conditions remained cyclonic on the 29th, which was mainly cloudy with spells of rain and drizzle. Ireland was the driest area of the British Isles with sunny spells here in the N and in parts of N and W Scotland. Large areas of E England remained dull during the day. Overnight it was warm in the SE corner of England. (Shawbury 24.6C, Tyndrum 14.1C maximum, Katesbridge 5.4C minimum, Capel Curig 51.2 mm, Magilligan 11.5 h.)

After a warm night (overnight minimum temperatures of 18C in places) across much of S England and East Anglia into the 30th, the day became warm in parts of E England. Generally, a cyclonic S'ly flow led to a showery day with more general rain over N Wales, N England and S Scotland. Sunny periods affected most areas although SW England remained dull in places - and it was a relatively cool day in W areas of the British Isles. (Hull East Park 26.2C, Harris Quidnish 14.9C maximum, Altnaharra 4.1C minimum, Kielder Castle 21.6 mm, Kirkwall 10.3 h.)

Outbreaks of rain affected many areas overnight into the 31st. Thunderstorms broke out around dawn over the SW Midlands, and over West Sussex and Surrey; both areas moved generally N/NE'wards. There was also some thunder in mid-morning over north Lincolnshire. A warm day followed in much of East Anglia and SE England - but was more unsettled with some rain over parts of Ireland, and in W and N Scotland. (Gravesend 25.8C, Harris Quidnish 14.4C maximum, Katesbridge 3.9C minimum, Tyndrum 16.0 mm, St Athan 13.5 h.)


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Last updated 3 August 2018.