St-Athan (Vale of Glamorgan) weather

Headline:

Windy to start with some rain in the north.

This Evening and Tonight:

A very windy evening but rain easing away from the north and most of Wales becoming dry with clearing skies. Winds easing overnight, perhaps allowing a few mist patches in rural spots. Minimum temperature 4 °C.

Sunday:

Rain quickly spreading east across Wales during the morning, with some heavy downpours in places. Turning drier and brighter by the afternoon with some sunshine. Windy with coastal gales later. Maximum temperature 13 °C.

Outlook for Monday to Wednesday:

Some sunny spells on Monday, but further heavy rain arriving from the west overnight and into Tuesday. Drier on Wednesday. Often windy and less mild than over the weekend.

Updated: 16:00 (UTC) on Sat 9 Dec 2023

Potential for a band of rain across the UK before becoming more settled later in the week as high pressure builds over southern areas, though remaining in a more wet and windy regime as fronts occasionally push into northern areas. As such, the wettest weather likely across western high ground, mainly in Scotland and occasionally parts of Northern Ireland and northwest England. Settled conditions in the south with average temperatures and cloudy at times with patchy light rain near coasts and over hills. Clearer spells favouring the southeast but these also allowing potential for fog or frost overnight. The following week sees potential for high pressure to decline allowing a return to unsettled conditions and typically average temperatures, favouring the northwest for wettest and windiest conditions.

Updated: 14:00 (UTC) on Sat 9 Dec 2023

More likely to be unsettled compared to the preceding settled spell with bands of rain crossing the UK with brighter conditions and showers in between. The wettest and windiest conditions are most likely in the west and northwest. The chance of a colder spell of weather, with hazards such as snow and ice, does increase later in December and into the New Year period. However, conditions are more likely to remain generally mild and wet.

Updated: 15:00 (UTC) on Sat 9 Dec 2023