Y Tywydd Y Deyrnas Unedig

Llun 20 Mai—Sul 26 Mai

Turning cooler

This week high pressure sits to the west of the UK with low pressure developing in the North Sea. The ‘squeeze’ between the two will cause winds to funnel down from a northerly direction, causing the reasonably warm conditions at the beginning of the week to turn increasingly cool, with temperatures falling below the late May average. It's possible for a time later in the week that we may see sufficiently cold air being dragged down from the north for snow over the Scottish mountains, and nights may be cold enough for a touch of ground frost.

At the same time the low pressure in the North Sea will mean windy, showery conditions will often affect eastern areas during the second half of the week. Central and western locations will be more likely to experience dry and bright weather.

This east-west split is likely to remain in place into the Bank Holiday weekend with the brightest weather in the west, and the more unsettled conditions occurring further east and southeast. The continuing northerly winds will keep temperatures on the low side.

Llun 27 Mai—Sul 2 Mehefin

An unsettled end to spring

As a new month and new season loom, there's not a great deal of change to the unsettled theme, however temperatures may eventually start to recover.

It looks like the cool northerly flow and unsettled picture will continue to the end of May, with further showers or longer spells of rain, especially in the east. This includes Bank Holiday Monday.

Again, there will be some drier, sunnier weather to enjoy, and in the sun it will feel pleasantly warm, given how high and strong the sun is at this time of the year. Perhaps the best of the drier weather will once again be found towards more western and southwestern parts of the UK.

However, as we move into June, the winds may start to swing to westerlies. Should this happen it would allow temperatures to return to more typical values for the time of year.

Llun 3 Mehefin—Sul 16 Mehefin

Signs of a promosing start to summer?

Heading into the first part of June there are signs that the Azores high may build across the country from the southwest. This would allow the weather to settle, with drier than normal conditions for many areas, especially the north and west.

With temperatures around average for June, it would feel warm in any sunshine but cooler around the coasts where sea breezes develop by day.

Variable amounts of cloud are likely to drift across the country but some decent sunshine would also be expected. The south and east would be most likely to see some showers breaking out from time to time.

Wythnos nesaf

It doesn't look like the late May Bank Holiday will be as nice as the one in early May, but can June provide us with some more seasonal weather?