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Live forecasts update automatically; written guidance last reviewed 13 June 2026 by the Insight Britain weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above for Llanelli’s current conditions, hourly breakdown and wind speed. This local guide explains how to interpret that data, what to expect from the town’s maritime climate through the year, and how to plan your visit.
How should you read the live forecast for Llanelli?
The live forecast above shows temperature, precipitation probability, wind direction and speed for the coming hours and days. For Llanelli, pay close attention to the wind icon and rain percentage: strong south-westerly winds often bring bands of rain from the Bristol Channel, while lighter winds from the east usually mean drier, clearer conditions.
What is Llanelli’s typical climate through the seasons?
Llanelli has a mild maritime climate, heavily influenced by the nearby coast. Winters (December to February) are cool and damp, with daytime temperatures typically in single figures and frequent cloud cover. Frost is rare near the coast. Spring (March to May) sees gradual warming, though April can be showery. Summers (June to August) are pleasantly warm, with daytime highs often in the upper teens or low twenties Celsius, but prolonged heatwaves are uncommon. Autumn (September to November) is often the wettest period, with Atlantic low-pressure systems bringing strong winds and persistent rain.
How does local geography affect Llanelli’s weather?
Llanelli sits on the north shore of the Loughor estuary, sheltered to the north by the hills of the Brecon Beacons National Park. This position means the town is often a few degrees milder than inland Carmarthenshire in winter, but it can be noticeably windier. The Gower Peninsula to the south-east sometimes blocks the heaviest rain, though the town still receives significant rainfall, averaging around 1,200mm annually.
When is the best time to visit Llanelli and what should you pack?
Late spring (May) and early autumn (September) offer the best balance of mild weather, lighter winds and fewer crowds. For any visit, pack a waterproof jacket and layers, as conditions can change quickly. In summer, light clothing and sun cream are useful, but always carry a raincoat. In winter, a warm coat, hat and gloves are advisable, especially for coastal walks.
Which nearby areas do readers also check?
Readers of this Llanelli guide often look at forecasts for nearby locations including Swansea, Carmarthen, Neath and Port Talbot. For those heading west, the Tenby forecast is also popular.
What is the weather in Llanelli tomorrow?
For an accurate forecast for tomorrow, refer to the live forecast above. Typically, if the wind is from the south-west, expect cloud and a chance of rain. A north-easterly wind often brings drier, brighter conditions, especially in spring and summer.
What is the 10 to 14 day outlook for Llanelli?
The live forecast above includes a 14-day outlook. For Llanelli, the reliability of predictions beyond seven days is moderate. Look for pressure trends: rising pressure usually signals a drier spell, while falling pressure suggests more Atlantic weather systems moving in.
Does it rain a lot in Llanelli?
Yes, Llanelli receives above-average rainfall for the UK, around 1,200mm annually. Rain is spread fairly evenly through the year, though autumn and winter tend to be wettest. The town is generally drier than inland parts of Carmarthenshire but wetter than many eastern areas of Wales.
Where can I find UK weather warnings?
For official warnings about wind, rain or snow affecting Llanelli, visit the UK weather warnings page. You can also check the 10-day forecast for the wider region or browse the full list of UK towns.