Met Office Monday Afternoon Weather Forecast 18/08/2025

Met Office

High pressure still dominating the UK weather picture, with fine conditions for many in England. Wales, Northern Ireland and Scotland. Some cloud lingers until later in the northeast and some smoke from Portuguese wildfires affects southwest areas too. Temperatures close to the average, cooler on North Sea coasts. - This is the Met Office UK weather forecast for the afternoon of 18/08/2025. Bringing you today’s forecast is Alex Deakin.

Transcript

00:00Welcome along to your afternoon or weather update from the Met Office.

00:03It's a fine summer's day for the vast majority, but as always, there are one or two exceptions.

00:09High pressure is dominating, sitting to the north, but there's low pressure just to the southwest.

00:14We are seeing a few showers coming up into the southwest, and around that high pressure,

00:18the breeze just feeding in from the North Sea, generating a bit of cloud on some of these North Sea coasts,

00:23and that may be fairly stubborn.

00:25Inland, it's breaking up a little bit and should reveal some spells of sunshine,

00:30but along the coastal strip of northern England and eastern Scotland, it may well stay a little glum.

00:36A few showers across the southwest of England, they're tending to drift away, but staying quite cloudy here,

00:40quite hazy conditions with some smoke from Portuguese wildfires that's been blown northwards,

00:47may enhance the sunsets this evening, and for many it's just a fine afternoon with plenty of sunny spells

00:53and warm enough, temperatures pretty close to average, getting into the low 20s.

00:57It's quite warm in western Scotland, but noticeably cooler on some of these North Sea coasts,

01:02where it does stay fairly cloudy, temperatures may not get much above 16 or 17 degrees Celsius.

01:08As we go through this evening, this big lump of cloud out in the North Sea will start to drift further south

01:14and just move back inland, again across much of northeast England, central and eastern Scotland,

01:19and increasingly further south too, across parts of east Anglia.

01:22Still quite cloudy across southwest England, in May again, see one or two showers coming in here,

01:28might even hear a rumble of thunder or see a flash of lightning,

01:31and it will be a pretty mild night, temperatures for most staying in the mid-teens, 14, 15 degrees,

01:38could just about dip down to single figures across rural parts of Scotland.

01:42We are seeing a bit of a northerly breeze, which will turn things cooler across the Northern Isles,

01:47in particular during Tuesday, bringing in more cloud, which may again be fairly stubborn

01:52across the central and the eastern parts of Scotland and northern and eastern parts of England

01:57during Tuesday.

01:59It might produce the odd little bit of drizzle, but generally staying dry.

02:02More likely to see some wet weather in the southwest, a scattering of showers.

02:06Again, the odd heavy one is possible, but they will be well scattered.

02:09Of course, Devon Cornwall, maybe Pembrokeshire catching one too,

02:12perhaps even as far east as Dorset and Somerset.

02:14But the vast majority, I think, again, will stay dry,

02:17and we'll have some good spells of sunshine, particularly west coast of Wales

02:21and the south coast of England, where temperatures are likely to get up to 24, 25 degrees again.

02:26Again, quite a contrast.

02:28Where we keep that cloud and with a bit of a breeze coming in from the North Sea,

02:31it's going to feel fairly fresh when we compare the temperatures to the average for the time of year.

02:36You can see cooler than average where we keep that cloud and the breeze from the North Sea,

02:40but warmer further west where we see some sunny spells.

02:43Still the potential for one or two heavy showers,

02:46maybe even the odd rumble of thunder in the far southwest of England during Tuesday evening,

02:50and that cloud starting to come back inland.

02:52That will be a feature of the weather for the next couple of days.

02:55The high pressure remains in control, but remains sitting to the north,

03:00at least for the time being.

03:01Later in the week, it does tend to drift a little further south,

03:04which means we may lose more of that easterly breeze coming in.

03:08So high pressure bringing a lot of fine weather through the rest of this week.

03:11For more on that, you'll want to subscribe to our YouTube channel

03:13and then you can watch Aidan's Week Ahead video,

03:16which will be available by Monday afternoon.

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