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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 ·
The live forecast above shows the current conditions for Penarth, including temperature, wind speed and chance of rain. It updates automatically, so you can check the outlook for the next few hours at a glance.
How should I read the live forecast for Penarth?
The live forecast above displays hourly and daily data for the town. Look for the wind direction icon, which often swings between south-westerly and north-easterly, and the precipitation percentage, which is especially useful for planning a walk along the seafront. The “feels like” temperature accounts for the coastal breeze.
What is Penarth’s typical climate through the seasons?
Penarth has a mild maritime climate, typical of south Wales. Winters (December to February) are cool and damp, with daytime highs rarely reaching double digits and frequent rain. Spring brings gradual warming and more settled spells. Summers are warm but not hot, with occasional humid days and a risk of showers. Autumn is often the wettest season, with Atlantic low-pressure systems bringing strong winds off the Bristol Channel.
How does Penarth’s geography affect its weather?
Penarth sits on the coast of the Bristol Channel, which moderates temperatures year-round. The seafront and pier are exposed to south-westerly winds, making it feel cooler than inland areas. The town’s position on a hillside means the upper parts can be noticeably windier, while the sheltered esplanade can trap mist and sea fog on calm mornings.
When is the best time to visit Penarth and what should I pack?
Late spring (May to June) and early autumn (September) offer the best balance of mild temperatures and lower rainfall. Pack a waterproof jacket and layers even in summer, as sea breezes can be brisk. In winter, bring a warm coat and sturdy footwear for wet pavements. Sunglasses are useful year-round, as the glare off the sea can be strong.
Key facts about Penarth weather
What about nearby areas?
Readers also check the forecast for Cardiff, just across the bay, which has a very similar climate but can be slightly warmer inland. The coastal town of Barry is also popular, as is Caerphilly further north, where temperatures are often a degree cooler. For a wider view of conditions across the country, see the UK weather hub.
Frequently asked questions
What will the weather be like in Penarth tomorrow?
Check the hourly breakdown in the live forecast above for tomorrow’s temperature range, wind speed and rain probability. Mornings can be misty along the coast, so allow extra time if travelling.
What is the 10 to 14 day outlook for Penarth?
The 10-day forecast above gives a general trend, but confidence decreases after day 7. Look for consistent pressure patterns: high pressure often brings dry, settled weather, while low pressure signals wind and rain from the Atlantic.
Does it rain a lot in Penarth?
Penarth receives around 900mm of rain per year, which is above the UK average of 800mm. Rain is spread fairly evenly, though autumn and winter tend to be wetter. Showers can be frequent but are often short-lived.