Home › Weather › Weather Saint Mellons
Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the DailyCity weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Make the most of Saint Mellons’ weather today by checking the live forecast above before you head out — the local outlook shifts quickly between Cardiff’s coastal influence and the inland breeze off the Rhymney River.
What’s the weather doing in Saint Mellons right now?
Saint Mellons, on the eastern edge of Cardiff near the coast of the Severn Estuary, often sees conditions that differ from the city centre. The live forecast above shows the current temperature, wind and rain risk, so glance at it before planning walks along the nearby Rumney Great Wharf or a trip into the city.
Will it stay dry for the rest of the day?
The live forecast gives you the hour-by-hour picture. In spring and autumn low cloud can cling to the Taff valley, while summer sea breezes bring cooler air. For a broader look at the week ahead, see our 10 Day Weather Forecast UK or check conditions in Bristol Weather just across the water.
Is Saint Mellons windier than central Cardiff?
Yes, because it lies closer to the open coast and the flatlands around the Rhymney River. The live forecast above shows wind speed and gusts, so it’s worth a look if you’re cycling or walking on the estuary paths.
Does Saint Mellons get more rain than other parts of Cardiff?
Rainfall is similar, but low cloud and drizzle can linger a little longer near the river. The live forecast above gives the percentage chance of precipitation for the hours ahead, so you can plan your garden jobs or dog walk.
When is the best time of day for a walk here?
Mid-morning often offers the steadiest conditions before the sea breeze picks up. Check the live forecast above for cloud cover and temperature trends, then choose a route along the Rhymney Trail or down to the coast at Rumney.