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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Public Journal weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
If you’re planning a day in Llandeilo, the live forecast above shows the conditions to expect right now. This market town in Carmarthenshire, tucked inland between the Brecon Beacons and the coast, often sees weather that differs from both neighbouring valleys and the M4 corridor.
What’s the outlook for Llandeilo today?
Based on the live forecast above, Llandeilo will follow a typical inland pattern for this part of west Wales. Mornings often start with low cloud and patchy drizzle from the Tywi valley, lifting to brighter spells by midday. Temperatures here tend to be a degree or two cooler than at Carmarthen or the coast, thanks to the town’s position in the shadow of the Black Mountain. Winds stay light, but the air can feel damp when rain moves in from the Atlantic.
How does the met office weather Llandeilo compare?
The met office weather llandeilo forecast often aligns with the live data above, but local topography can cause sudden changes. The Tywi valley funnels rain-bearing clouds, so brief heavy showers are common in autumn and winter. For detailed planning, check the UK weather hub for regional updates, or see how conditions compare with Bristol Weather further east.
When is the best time to visit Llandeilo for dry weather?
Late spring (May–June) and early autumn (September) typically offer the driest spells. July and August can be showery, but the town avoids the heavy Atlantic fronts that hit the coast.
Does Llandeilo get snow in winter?
Yes, but it’s usually light. The town sits at about 60 metres above sea level, so snow settles for a day or two when cold air from the Brecon Beacons meets moist westerly winds.
Where can I find BBC News for the area?
BBC News covers west Wales via local radio and online reports. For live weather, the BBC Weather app and website provide hourly updates for Llandeilo SA19.