Cardiff Weather
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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Policyline weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Cardiff’s weather this week stays unsettled with showers and brisk south-westerly winds off the Bristol Channel. Keep a raincoat handy if heading into the city centre or along the bay, as conditions change quickly through the day.
What does the forecast look like for the coming days?
Looking at the live forecast above, the pattern for weather in Cardiff tomorrow follows a similar theme — bright spells but passing showers, some heavy. By Cardiff weather Saturday, a weak ridge of high pressure may bring a drier interlude, though cloud will increase later. For those planning ahead, weather in Cardiff 10 days out shows a return to Atlantic influence. The weather Cardiff 14 days outlook remains changeable, typical for autumn in the Severn Estuary — a pattern shared across the channel in Bristol Weather. For a longer view, the 21 day weather forecast Cardiff from the Met Office suggests no prolonged settled spells, but nothing severe. See our 10 Day Weather Forecast UK for a wider perspective.
Are there any weather warnings for Cardiff?
At present there is no Cardiff weather warning in force. However, the BBC Wales Cardiff weather team and Natural Resources Wales monitor tidal surges in the Bristol Channel closely, which can affect the barrage and bay areas. For localised updates, the BBC weather Cardiff CF14 postcode feed gives hourly breakdowns for the northern suburbs and the M4 corridor. For the latest national outlook, visit our UK weather hub.
How reliable are 14-day and 21-day forecasts for Cardiff?
Beyond 7 days, confidence drops significantly. The weather Cardiff 14 days outlook gives a useful trend but not hour-by-hour detail. The 21 day weather forecast Cardiff is best treated as a broad pressure-pattern indication, not a day-by-day plan.
Where can I check the latest BBC Wales weather for Cardiff?
The BBC Weather page for Cardiff uses Met Office data and updates hourly. Enter the CF14 postcode for a hyper-local view of the northern suburbs. BBC Wales Today also provides the regional TV forecast each evening.
Does Cardiff get affected by tidal flooding?
Yes, especially around Cardiff Bay and the barrage. When low pressure coincides with spring tides, a Cardiff weather warning for tidal surge risk may be issued. Check Natural Resources Wales for flood alerts along the coast.
