Cillibion Weather Forecast, Swansea SA3 1

Today 4 Jan Wales

Sunny spells and wintry showers, these mainly in western areas at first but perhaps developing more widely later. The snow will accumulate in places with several centimetres possible over the hills. Cold with frost and ice lingering for some. Maximum Temperature 4C.

Tonight 4 Jan Wales

A mixture of clear periods and scattered wintry showers this evening and overnight, these leaving a fresh covering of snow in places with the risk of icy stretches in many areas. Skies clearing later and turning very cold and frosty. Minimum Temperature -8C.

Mon 5 Jan Wales

Remaining similar with scattered snow flurries, these primarily in western areas. Sunny intervals too, these most prolonged in eastern counties. Staying very cold with icy stretches persisting in places. Maximum Temperature 4C.

Tue 6 Jan Wales

Turning cloudier on Tuesday with patchy rain and hill snow possible. Brighter at first on Wednesday, then wet overnight with further rain and hill snow arriving Thursday. Somewhat less cold.

Wed 7 Jan Wales

Turning cloudier on Tuesday with patchy rain and hill snow possible. Brighter at first on Wednesday, then wet overnight with further rain and hill snow arriving Thursday. Somewhat less cold.

Thu 8 Jan Wales

Turning cloudier on Tuesday with patchy rain and hill snow possible. Brighter at first on Wednesday, then wet overnight with further rain and hill snow arriving Thursday. Somewhat less cold.

Fri 9 Jan Wales

A changeable period is expected, with Atlantic frontal systems occasionally affecting the UK, bringing spells of rain, likely preceded by snow in some areas, more especially central, northern and eastern parts. Some significant snowfall is possible in places, particularly on northern hills. These low pressure systems could also bring some strong winds. These will be interspersed with quieter, drier interludes under transient ridges of high pressure, with the potential for frost, and wintry showers along coasts exposed to northerly winds. Temperatures will tend to trend closer to average as the period progresses, mainly in the south, such that the frequency of wintry hazards, especially in the south, may reduce slightly. However, there is a hint late in this period that it may briefly turn widely drier and colder again.

Sat 10 Jan Wales

A changeable period is expected, with Atlantic frontal systems occasionally affecting the UK, bringing spells of rain, likely preceded by snow in some areas, more especially central, northern and eastern parts. Some significant snowfall is possible in places, particularly on northern hills. These low pressure systems could also bring some strong winds. These will be interspersed with quieter, drier interludes under transient ridges of high pressure, with the potential for frost, and wintry showers along coasts exposed to northerly winds. Temperatures will tend to trend closer to average as the period progresses, mainly in the south, such that the frequency of wintry hazards, especially in the south, may reduce slightly. However, there is a hint late in this period that it may briefly turn widely drier and colder again.

Cillibion Weather Forecast

Today 4 Jan Wales

Tonight 4 Jan Wales

Mon 5 Jan Wales

Tue 6 Jan Wales

Wed 7 Jan Wales

Thu 8 Jan Wales

Fri 9 Jan Wales

Sat 10 Jan Wales

Temperature Forecast Met Office

Temperature Real-Time

Crug-y-Gorllwyn (Carmarthenshire) Radar

National Satellite

National Synoptic

Cillibion Temperature Statistics

January Temperature

Pembrey Sands Samos (20km)

Lowest 3 January, 2026

Average 2026

Highest 1 January, 2026

Lowest 26 December, 2025

Average December

Highest 9 December, 2025

Lowest 3 January, 2026

Average January

Highest 1 January, 2026

Climate (2021–Present)

Pembrey Sands Samos (20km)

Average Low 2021–2026

Average 2021–2026

Average High 2021–2026