Tirdeunaw Weather Forecast, Swansea SA5 9

Today 11 Dec Wales

A dry morning, with plenty of sunshine. Gradually turning cloudier as the afternoon progresses with the odd spot of rain developing, though some northern parts could remain dry and reasonably bright. Breezy, particularly around the coasts. Mild once again. Maximum Temperature 12C.

Tonight 11 Dec Wales

A few early cloud breaks, but rain spreading slowly eastwards through the evening and overnight, heavy at times. Turning drier and clearer in the west towards dawn. Winds gradually easing. Minimum Temperature 3C.

Fri 12 Dec Wales

Rain will gradually clear in the east during the morning, to leave a dry and bright day with plenty of sunshine. Winds lighter than of late, but feeling fresher. Maximum Temperature 11C.

Sat 13 Dec Wales

Saturday starts cold, though bright with a few showers. Gradually turning wet and windy from the northwest, with further rain and brisk winds expected on Sunday. Perhaps drier on Monday.

Sun 14 Dec Wales

Saturday starts cold, though bright with a few showers. Gradually turning wet and windy from the northwest, with further rain and brisk winds expected on Sunday. Perhaps drier on Monday.

Mon 15 Dec Wales

Saturday starts cold, though bright with a few showers. Gradually turning wet and windy from the northwest, with further rain and brisk winds expected on Sunday. Perhaps drier on Monday.

Tue 16 Dec Wales

The current unsettled spell of weather is likely to continue through much of next week. Further spells of rain are expected, likely to be heavy and prolonged at times, particularly in the west and northwest. Some drier spells of weather are also likely, these most reliably across southeastern parts of the UK. Often windy, especially in the north and west where there is potential for a spell of very strong winds to develop for a time early next week. Generally mild with any overnight frost patchy and mainly in the north. There are signs that conditions may become less disturbed heading towards the Christmas period, with the potential for high pressure to build bringing drier conditions, with the risk of overnight frost and fog patches increasing.

Wed 17 Dec Wales

The current unsettled spell of weather is likely to continue through much of next week. Further spells of rain are expected, likely to be heavy and prolonged at times, particularly in the west and northwest. Some drier spells of weather are also likely, these most reliably across southeastern parts of the UK. Often windy, especially in the north and west where there is potential for a spell of very strong winds to develop for a time early next week. Generally mild with any overnight frost patchy and mainly in the north. There are signs that conditions may become less disturbed heading towards the Christmas period, with the potential for high pressure to build bringing drier conditions, with the risk of overnight frost and fog patches increasing.

Tirdeunaw Weather Forecast

Today 11 Dec Wales

Tonight 11 Dec Wales

Fri 12 Dec Wales

Sat 13 Dec Wales

Sun 14 Dec Wales

Mon 15 Dec Wales

Tue 16 Dec Wales

Wed 17 Dec Wales

Temperature Forecast Met Office

Temperature Real-Time

Crug-y-Gorllwyn (Carmarthenshire) Radar

National Satellite

National Synoptic

Tirdeunaw Temperature Statistics

December Temperature

Pembrey Sands Samos (29km)

Lowest 4 March, 2025

Average 2025

Highest 12 August, 2025

Lowest 21 November, 2025

Average November

Highest 5 November, 2025

Lowest 4 December, 2025

Average December

Highest 9 December, 2025

Climate (2020–Present)

Pembrey Sands Samos (29km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025