A low-pressure system is bringing a brief period of warm weather to the UK before unsettled conditions move in mid-week.
Key facts
- •Tuesday is forecast to be the warmest day of the week, with temperatures reaching 26C in parts of England and Wales.
- •Rain and strong winds are expected to move from Northern Ireland toward the east starting Tuesday evening.
- •High pressure is expected to build by Thursday, leading to calmer and drier weather across the UK.
- •Achnagart in the Highlands has recorded rain every day for the past 27 days.
- •Kirkwall and Prestwick have received nearly 1.5 times their average rainfall for September.
A vast Atlantic low-pressure system is drawing warm south to south-easterly winds across the UK early this week. While Tuesday is expected to be the warmest day, a shift toward wetter and windier conditions is forecast to follow, particularly affecting Scotland, Northern Ireland, and western regions of England and Wales.
By the numbers
Temperature and weather outlook
Monday morning is expected to be chilly with potential fog patches, followed by a brighter day with scattered showers. Temperatures are forecast to reach the mid-to-high teens, with some southern areas hitting 20C. By Tuesday, strengthening winds will push temperatures in England and Wales between 20C and 26C, while Scotland and Northern Ireland see highs in the high teens. Rain is expected to move into Northern Ireland on Tuesday afternoon, spreading eastwards overnight with the potential for heavy, persistent downpours and coastal gales. High pressure is expected to return by Thursday, bringing calmer and drier conditions.
September rainfall patterns
September has maintained a stark north-west to south-east contrast in weather. While central, southern, and eastern England have remained largely dry, western areas have experienced frequent Atlantic weather systems. Some locations, such as Kirkwall and Prestwick, have recorded nearly 1.5 times their average September rainfall, while Achnagart in the Highlands has seen rain every day for the past 27 days.
Timeline
- MondayChilly morning with fog patches followed by a brighter day with scattered showers.
- TuesdayStrengthening southerly winds bring warmer temperatures before rain moves into Northern Ireland.
- ThursdayHigh pressure builds, leading to calmer and drier conditions.
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This article was independently rewritten by ManyPress editorial AI from reporting originally published by BBC Science & Environment.
