Home › Weather › Caerphilly Weather
Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Public Report weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
According to the live forecast above, Caerphilly is expecting temperatures in the low-to-mid teens with cloud cover and occasional rain. This pattern is typical for the Valleys in late spring, with brisk south-westerly winds keeping conditions unsettled.
What does the rain look like for Caerphilly today?
The live forecast above shows a 60–70% chance of light rain through the morning, easing to scattered showers by the afternoon. Total rainfall should stay under 3 mm in most parts of the town, though higher ground near Caerphilly mountain may see slightly heavier bursts. For weather in Caerphilly tomorrow, expect similar conditions with a drier window midweek.
How reliable are the 10-day and 14-day forecasts?
For weather in Caerphilly 10 days ahead, confidence is moderate: the models agree on a slow-moving Atlantic low keeping things changeable. The bbc weather caerphilly 14 days outlook extends this pattern, though day-to-day accuracy drops after day 7. If you need a 21 day weather forecast caerphilly, treat it as a broad trend rather than a reliable prediction. For short-term planning, the accuweather caerphilly hourly breakdown and the weather caerphilly 14 days met office data align closely. A 30 day long range weather forecast caerphilly should only be used for general seasonal awareness, not specific plans.
Will Caerphilly see any sun this week?
The long-range view suggests brief sunny spells on Wednesday afternoon before cloud returns Thursday. Total sunshine hours are expected to be around 4–5 across the week.
Is Caerphilly prone to flooding in this weather?
Caerphilly’s valley location means surface water can accumulate after persistent rain, but the current forecast does not suggest river flooding risks. Check live warnings for the Nant y Gwyddon catchment.
Should I wear layers for Caerphilly in May?
Yes — with temps varying from 9 °C overnight to 16 °C in the afternoon and a brisk wind, a light waterproof jacket over a mid-layer is the practical choice for the Valleys.
Sources
For a wider view across Wales and the rest of the country, visit the UK weather hub. You can also compare conditions with Weather in Bristol or check the 10 day weather forecast UK for longer-term planning.