River Neath - M4 Bridge Weather Forecast, Neath Port Talbot

Today 25 Mar Wales

A damp and dreary start with widespread low cloud bringing hill fog across the mountains and sea fog along the coasts. Turning drier later but remaining rather cloudy with sunny spells slowly spreading into the north later. Maximum Temperature 15C.

Tonight 25 Mar Wales

Cloud clears to the south with clear spells to follow, leading to a rather chilly night with a rural frost in places. By dawn, some patchy mist and fog too. Minimum Temperature 0C.

Wed 26 Mar Wales

Early morning mist and fog soon clear to leave a widely dry and fine day with plenty of sunny spells. Light winds, and feeling warm in the sunshine. Maximum Temperature 15C.

Thu 27 Mar Wales

Turning cloudier on Thursday, and breezier into the afternoon before becoming widely wet and windy on Frida. Remaining unsettled on Saturday and feeling cooler, though with longer dry spells.

Fri 28 Mar Wales

Turning cloudier on Thursday, and breezier into the afternoon before becoming widely wet and windy on Frida. Remaining unsettled on Saturday and feeling cooler, though with longer dry spells.

Sat 29 Mar Wales

Turning cloudier on Thursday, and breezier into the afternoon before becoming widely wet and windy on Frida. Remaining unsettled on Saturday and feeling cooler, though with longer dry spells.

Sun 30 Mar Wales

The end of March will likely see a transition from unsettled conditions to predominantly dry weather. Over the weekend, showers or longer spells of rain are likely at times, especially in the north of the UK, with drier conditions gradually spreading in from the south. Into the first week of April, settled weather is expected to cover much of the UK. Most places are expected to be dry with clear or sunny spells and light winds. Some periods of unsettled weather could develop at times and if this happens any rain or showers are most likely to affect southern areas. Temperatures will likely be close to normal overall, though some cold nights are possible at times.

Mon 31 Mar Wales

The end of March will likely see a transition from unsettled conditions to predominantly dry weather. Over the weekend, showers or longer spells of rain are likely at times, especially in the north of the UK, with drier conditions gradually spreading in from the south. Into the first week of April, settled weather is expected to cover much of the UK. Most places are expected to be dry with clear or sunny spells and light winds. Some periods of unsettled weather could develop at times and if this happens any rain or showers are most likely to affect southern areas. Temperatures will likely be close to normal overall, though some cold nights are possible at times.

River Neath - M4 Bridge Weather Forecast

Today 25 Mar Wales

Tonight 25 Mar Wales

Wed 26 Mar Wales

Thu 27 Mar Wales

Fri 28 Mar Wales

Sat 29 Mar Wales

Sun 30 Mar Wales

Mon 31 Mar Wales

Temperature Forecast Met Office

Temperature Real-Time

Crug-y-Gorllwyn (Carmarthenshire) Radar

National Satellite

National Synoptic

River Neath - M4 Bridge Temperature Statistics

March Temperature

St-athan (36km)

Lowest 9 January, 2025

Average 2025

Highest 20 March, 2025

Lowest 28 February, 2025

Average February

Highest 20 February, 2025

Lowest 3 March, 2025

Average March

Highest 20 March, 2025

Climate (2020–Present)

St-athan (36km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025