Rhosamman Weather Forecast, Neath Port Talbot SA18 1

Today 17 Aug Wales

Some cloud at first, this mainly in eastern areas, but lifting more quickly than on Saturday. Thereafter, largely sunny with temperatures quickly rising in the strong sunshine. Turning very warm by this afternoon with a light easterly breeze. Maximum Temperature 26C.

Tonight 17 Aug Wales

Overnight, cloud will spread in from the east, although west Wales will remain largely cloud-free. It will be milder than last night, with mostly light easterly winds, though these may become gusty near Gwynedd coasts later. Minimum Temperature 12C.

Mon 18 Aug Wales

A mainly dry day with a mixture of cloud and sunny spells. A low chance of thundery showers in Pembrokeshire. Feeling a bit cooler, especially in the easterly breeze. Maximum Temperature 25C.

Tue 19 Aug Wales

A small chance of showers in the south on Tuesday. Otherwise remaining dry with cloudy periods interspersed with sunny spells. Lower temperatures than of late but still warm at times.

Wed 20 Aug Wales

A small chance of showers in the south on Tuesday. Otherwise remaining dry with cloudy periods interspersed with sunny spells. Lower temperatures than of late but still warm at times.

Thu 21 Aug Wales

A small chance of showers in the south on Tuesday. Otherwise remaining dry with cloudy periods interspersed with sunny spells. Lower temperatures than of late but still warm at times.

Fri 22 Aug Wales

High pressure is likely to be the dominant feature at first bringing widely fine and dry weather whilst a generally northerly flow leads to rather cool conditions. This will be increasingly eroded from the west as frontal systems start to move in from the Atlantic through the weekend, leading to more changeable conditions. Whilst this is happening a deep area of low pressure is likely to develop in the North Atlantic, linked to Hurricane Erin. This likely progresses towards the UK through the early part of the week. The changeable period will likely continue through the last week of August, especially in the north and west, with a small chance of widely wetter and windier weather developing. The evolution of this is highly uncertain though.

Sat 23 Aug Wales

High pressure is likely to be the dominant feature at first bringing widely fine and dry weather whilst a generally northerly flow leads to rather cool conditions. This will be increasingly eroded from the west as frontal systems start to move in from the Atlantic through the weekend, leading to more changeable conditions. Whilst this is happening a deep area of low pressure is likely to develop in the North Atlantic, linked to Hurricane Erin. This likely progresses towards the UK through the early part of the week. The changeable period will likely continue through the last week of August, especially in the north and west, with a small chance of widely wetter and windier weather developing. The evolution of this is highly uncertain though.

Rhosamman Weather Forecast

Today 17 Aug Wales

Tonight 17 Aug Wales

Mon 18 Aug Wales

Tue 19 Aug Wales

Wed 20 Aug Wales

Thu 21 Aug Wales

Fri 22 Aug Wales

Sat 23 Aug Wales

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Rhosamman Temperature Statistics

August Temperature

Sennybridge (32km)

Lowest 9 January, 2025

Average 2025

Highest 11 July, 2025

Lowest 3 July, 2025

Average July

Highest 11 July, 2025

Lowest 2 August, 2025

Average August

Highest 12 August, 2025

Climate (2020–Present)

Sennybridge (32km)

Average Low 2020–2025

Average 2020–2025

Average High 2020–2025