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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the NewsPrism weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
In Penlan today, the live forecast above shows a mild and largely dry day with variable cloud cover, typical of early autumn in south Wales, though a passing light shower cannot be ruled out later.
What is the outlook for Penlan this week?
Conditions will remain unsettled but relatively mild, with Atlantic low pressure bringing occasional rain and breezy interludes. Temperatures will hover close to seasonal averages for mid-September.
- Wednesday: Cloudy with patchy light rain possible, highs around 17°C.
- Thursday: Brighter spells and a few showers easing through the afternoon.
- Friday: A drier interlude with sunny intervals before rain returns overnight.
- Weekend: Wetter and windier, with organised bands of rain moving in from the west.
How does Penlan’s location affect its weather?
Penlan sits on higher ground north of Swansea, meaning it often sees more cloud and slightly cooler conditions than the coast, with a greater chance of catching passing showers.
- Upland position: exposed to westerly winds, with rain often arriving earlier than in Swansea Bay.
- Local microclimate: frost and fog form more readily on clear, calm nights compared to urban Swansea.
- Nearby UK weather patterns: Penlan’s conditions often mirror those in Bristol and Liverpool under westerly airflow.
What does weather killay refer to?
Killay is a nearby village in the Swansea area. Weather conditions in Killay are very similar to Penlan, given they sit at comparable elevations just a few miles apart in the same weather catchment.
Is Penlan prone to flooding when heavy rain hits?
The area includes some steep residential streets where surface water can run quickly after intense downpours, but it is not in a designated flood risk zone from main rivers. Check the 10 day forecast to monitor any heavy rain alerts.
Does Penlan get better weather than Swansea city centre?
Not usually. Penlan’s higher elevation means it tends to be cooler and cloudier, and it often catches showers that miss the lower-lying city centre. Coastal Swansea can be sunnier, especially in spring and summer.