Trelech Weather Forecast, Carmarthenshire SA33 6

Today 13 Sep Wales

A bright and dry start for many with the odd shower possible, primarily over high ground. Patchy cloud and scattered showers bubbling up for most places through the afternoon, perhaps heavy, though sunny spells remain likely between showers. Breezy. Maximum Temperature 16C.

Tonight 13 Sep Wales

Some late evening sunshine as things briefly turn more settled overnight, with winds easing and showers gradually fading. Becoming increasingly cloudy from the southwest by dawn. Minimum Temperature 6C.

Sun 14 Sep Wales

A band of rain, with prolonged or heavy downpours, likely pushes northeastwards through much of the day, bringing widespread strong wind, with gales likely. Showers follow later. Feeling muggy. Maximum Temperature 19C.

Mon 15 Sep Wales

Strong winds and blustery showers continue on Monday, with winds easing and showers fading overnight. A brighter and drier day on Tuesday before turning wet and windy again on Wednesday.

Tue 16 Sep Wales

Strong winds and blustery showers continue on Monday, with winds easing and showers fading overnight. A brighter and drier day on Tuesday before turning wet and windy again on Wednesday.

Wed 17 Sep Wales

Strong winds and blustery showers continue on Monday, with winds easing and showers fading overnight. A brighter and drier day on Tuesday before turning wet and windy again on Wednesday.

Thu 18 Sep Wales

Likely a continuation of the unsettled theme to begin, with further spells of unsettled weather bringing a risk of heavy rain and also the potential for some periods of stronger winds. Later in the period, there may be a trend toward more in the way of settled and drier interludes interspersed with further periods of rain and showers. These look more likely across southern areas of the UK, but may extend to other parts at times. Temperatures will likely be close to average or slightly below overall, but if we start to see more in the way of dry weather later in the period, temperatures could recover back to a little above average at times.

Fri 19 Sep Wales

Likely a continuation of the unsettled theme to begin, with further spells of unsettled weather bringing a risk of heavy rain and also the potential for some periods of stronger winds. Later in the period, there may be a trend toward more in the way of settled and drier interludes interspersed with further periods of rain and showers. These look more likely across southern areas of the UK, but may extend to other parts at times. Temperatures will likely be close to average or slightly below overall, but if we start to see more in the way of dry weather later in the period, temperatures could recover back to a little above average at times.

Trelech Weather Forecast

Today 13 Sep Wales

Tonight 13 Sep Wales

Sun 14 Sep Wales

Mon 15 Sep Wales

Tue 16 Sep Wales

Wed 17 Sep Wales

Thu 18 Sep Wales

Fri 19 Sep Wales

Temperature Forecast Met Office

Temperature Real-Time

Crug-y-Gorllwyn (Carmarthenshire) Radar

National Satellite

National Synoptic

Trelech Temperature Statistics

September Temperature

Aberporth (22km)

Lowest 4 March, 2025

Average 2025

Highest 12 August, 2025

Lowest 30 August, 2025

Average August

Highest 12 August, 2025

Lowest 8 September, 2025

Average September

Highest 6 September, 2025

Climate (2020–Present)

Aberporth (22km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025