BBC monthly outlook
Summary
Wet, breezy and cool at first; drier later
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Wednesday 6 March—Sunday 10 March
Wet and windy at times. Turning chillier.
The rest of this week will be wet and windy at times with bands of rain and showers spreading from west to east across the UK. Wednesday will be reasonably mild over England and Wales with at least a few bright spells developing for most. However, there will also be showers, accompanied by a brisk and gusty southerly wind. Some of these showers are likely to become heavy and thundery, particularly in the west and south. Scotland and Northern Ireland will stay somewhat chillier and cloudier for many with rain. Upland snow over the Highlands.
On Thursday, a band of showery rain will spread south-eastwards across the UK and it will feel a little chillier over England and Wales in strong westerly winds. However, there should be some brighter spells either side of the band of rain. After a bright but cold start, Friday is likely to see cloud and further rain spreading from the west later in the day. This weekend is likely to remain unsettled. There is the potential for some strong and gusty winds quite widely on Saturday along with squally showers, these perhaps wintry over hills. Strong winds and rain for some on Sunday, with the highest risk in the south and west.
Monday 11 March—Sunday 17 March
Further wet and windy weather. Chilly at times.
Next week is likely to see the unsettled weather continuing across the UK due to deep areas of low pressure approaching from the Atlantic at times.Through the week, bands of rain and showers are likely to continue spreading from west to east across the country.
It is likely to be quite chilly at times, particularly for a few days around the middle part of the week with showers turning wintry at times over hills. Windy at times, too, with a risk of occasional gales in the west and south in particular. There will also be some drier and brighter interludes but these are unlikely to last for long. Overall, an unsettled week with rainfall amounts above the seasonal average.
Monday 18 March—Sunday 31 March
Slowly turning drier and calmer from the south
We still expect to see a gradual change in the weather pattern through the latter part of March. The breezy and damp weather expected through the first half of the month is expected to slowly give way to drier and calmer conditions, thanks to an area of high pressure approaching from the south.The timing of this change remains somewhat uncertain but the southern half of the UK should see somewhat drier and calmer conditions developing first.
Towards the end of the month, we should see lengthier drier and calmer periods of weather extending further north across the country. Daytime temperatures are favoured to rise, too, with brighter and warmer days becoming more abundant later in the month. There is a slight chance that high pressure remains further away to the south-west than expected, which would lead to a persistence of wetter and breezier conditions. However, currently we still favour a slow trend to drier and warmer weather.
Next Update
It currently looks as though the old English proverb could be true for this March - 'March comes in like a lion and goes out like a lamb'. We will take another look to see if this month goes out like a lamb with a quieter and warmer ending.
https://www.bbc.co.uk/weather/outlook