Ochr-y-Mynydd Weather Forecast, Merthyr Tydfil CF48 1

Today 18 Dec Wales

The morning should start dry, but cloud will soon thicken with increasingly wet and windy weather sweeping across the country. The rain will become heavy, but it should turn more showery later. Winds remaining brisk. A mild day though. Maximum Temperature 12C.

Tonight 18 Dec Wales

The evening will begin cloudy with blustery showers. Occasional showers will continue to feed in on brisk southwesterly winds overnight, although some clear spells will develop at times. Staying frost-free. Minimum Temperature 6C.

Fri 19 Dec Wales

Friday will bring a mix of sunshine and scattered showers. The showers should begin to die out later in the day. Feeling cool due to the breezy conditions. Maximum Temperature 11C.

Sat 20 Dec Wales

After a mostly fine start, wet and windy weather will move eastwards across the country on Saturday. Sunday and Monday look cloudy with further patchy rain. The wind easing though.

Sun 21 Dec Wales

After a mostly fine start, wet and windy weather will move eastwards across the country on Saturday. Sunday and Monday look cloudy with further patchy rain. The wind easing though.

Mon 22 Dec Wales

After a mostly fine start, wet and windy weather will move eastwards across the country on Saturday. Sunday and Monday look cloudy with further patchy rain. The wind easing though.

Tue 23 Dec Wales

Unsettled conditions are likely to continue at first, with low pressure probably centred somewhere to the southwest of the UK, whilst high pressure becomes established to the northeast. This means a broadly easterly flow will become increasingly dominant through next week, whilst periods of rain or showers become increasingly confined to southern or southwestern parts. With time, high pressure is signaled to become more dominant with more in the way of dry, settled weather anticipated though there could be some isolated showers to eastern parts, that could perhaps be wintry at times. Temperatures will lower compared to recent weeks, closer to or perhaps a little below average for many. Overnight frost and fog or freezing fog could become more prevalent, though any particularly cold conditions look unlikely at this stage.

Wed 24 Dec Wales

Unsettled conditions are likely to continue at first, with low pressure probably centred somewhere to the southwest of the UK, whilst high pressure becomes established to the northeast. This means a broadly easterly flow will become increasingly dominant through next week, whilst periods of rain or showers become increasingly confined to southern or southwestern parts. With time, high pressure is signaled to become more dominant with more in the way of dry, settled weather anticipated though there could be some isolated showers to eastern parts, that could perhaps be wintry at times. Temperatures will lower compared to recent weeks, closer to or perhaps a little below average for many. Overnight frost and fog or freezing fog could become more prevalent, though any particularly cold conditions look unlikely at this stage.

Ochr-y-Mynydd Weather Forecast

Today 18 Dec Wales

Tonight 18 Dec Wales

Fri 19 Dec Wales

Sat 20 Dec Wales

Sun 21 Dec Wales

Mon 22 Dec Wales

Tue 23 Dec Wales

Wed 24 Dec Wales

Temperature Forecast Met Office

Temperature Real-Time

Crug-y-Gorllwyn (Carmarthenshire) Radar

National Satellite

National Synoptic

Ochr-y-Mynydd Temperature Statistics

December Temperature

Sennybridge (37km)

Lowest 9 January, 2025

Average 2025

Highest 11 July, 2025

Lowest 20 November, 2025

Average November

Highest 5 November, 2025

Lowest 16 December, 2025

Average December

Highest 9 December, 2025

Climate (2020–Present)

Sennybridge (37km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025