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Live forecasts update automatically; written guidance last reviewed 14 June 2026 by the StoryShift weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Cardiff’s weather is shaped by its coastal position on the Severn Estuary, bringing mild winters, moderate summers, and a persistent chance of rain year-round. The live forecast above shows the current conditions and the next few hours, while this guide explains what to expect today, tomorrow, and through the seasons.
What does the live forecast show for Cardiff right now?
The live conditions above give you the current temperature, wind speed and direction, humidity, and any precipitation in the Cardiff area. The hourly breakdown shows how the weather will change through the rest of today and into the evening. For the most accurate short-term planning, check the “feels like” temperature, which accounts for wind chill or humidity — especially important on the Cardiff Bay waterfront or when walking across Bute Park.
What is the typical climate in Cardiff through the year?
Cardiff has a temperate maritime climate, meaning it avoids extremes but sees plenty of cloud and rainfall. Winters are cool but rarely below freezing for long, while summers are warm rather than hot.
Spring (March to May)
Spring in Cardiff is changeable. March often starts cold with single-digit highs, but by May temperatures reach 14–17°C. Rainfall is frequent but lighter than in autumn. The city’s parks, especially Roath Park and Bute Park, begin to bloom, and the longer evenings make it a pleasant time for outdoor walks.
Summer (June to August)
Summer highs average 19–22°C, though occasional heatwaves can push temperatures above 28°C. Humidity is moderate, and rain remains possible — June is often the driest month, while August can be unsettled. The coast at Penarth and Barry Island benefits from sea breezes that keep conditions comfortable.
Autumn (September to November)
September often brings the best of late-summer warmth, but by October temperatures drop to 10–14°C and rainfall increases significantly. November is the cloudiest month, with frequent drizzle and stronger winds off the Bristol Channel. This is when the weather cardiff 14 days outlook becomes especially useful for planning around the wetter spells.
Winter (December to February)
Winter highs hover around 7–9°C, with overnight frosts a few times each month. Snow is rare and usually light, though the surrounding hills of the South Wales Valleys can see more. The main challenge is persistent grey skies and drizzle, rather than extreme cold. A cardiff weather warning for ice or fog is more common than for heavy snow.
Does Cardiff have a microclimate?
Yes, but it is subtle. The city sits in a slight rain shadow from the hills to the north, meaning it can be drier than the uplands of the Brecon Beacons just 30 miles away. However, the proximity to the Severn Estuary means sea fog (haar) can roll in during spring and summer mornings, often burning off by midday. The city centre and Cardiff Bay can feel noticeably cooler and windier than inland suburbs such as Whitchurch or Llanishen.
What is the weather in Cardiff tomorrow and over the next 10–14 days?
For the weather in cardiff tomorrow, the hourly forecast above gives the most reliable detail. For a broader view, the weather in cardiff 10 days and weather cardiff 14 days outlooks available on our 10-day forecast page show trends in temperature, wind, and precipitation probability. Bear in mind that beyond 7 days, confidence in exact timings drops, but the general pattern — whether settled or unsettled — is usually reliable.
When is the best time to visit Cardiff?
Late spring (May) and early autumn (September) offer the best balance of mild temperatures, longer daylight, and lower rainfall. Summer is popular but can be crowded, and the rain risk remains. If you are planning outdoor events such as the Cardiff Half Marathon or a concert at the Principality Stadium, check the bbc wales cardiff weather forecast in the days beforehand. Packing a waterproof jacket and layers is sensible in any season.
How does the maritime weather affect Cardiff differently from inland UK cities?
Cardiff’s coastal position means it warms up more slowly in spring and cools down more slowly in autumn than inland cities such as Birmingham or Sheffield. This also means winter nights are less severe, but summer heatwaves are rarer and shorter. The city is also more exposed to strong south-westerly winds, especially during autumn and winter storms. For the latest warnings, visit our UK weather warnings page.
What will the weather in Cardiff be like tomorrow?
For tomorrow’s forecast, refer to the live hourly breakdown above. In general, Cardiff’s weather changes quickly, so check the morning update for the most accurate wind and rain timings. A light jacket is usually advisable regardless of the season.
Is the 10-day or 14-day forecast reliable for Cardiff?
The weather in cardiff 10 days forecast is useful for spotting broad trends — such as a settled spell or an approaching front — but day-by-day accuracy drops after day 7. The weather cardiff 14 days outlook is best used as a guide to the general pattern rather than exact conditions.
Does it rain a lot in Cardiff?
Cardiff receives around 1,100mm of rain per year, which is slightly above the UK average. Rain is spread fairly evenly across the year, though autumn and winter are wetter. It rarely pours for long; instead, drizzle and light rain are common. A waterproof coat is useful on most visits.
How does the BBC Wales Cardiff weather forecast compare to other sources?
The bbc wales cardiff weather forecast uses the same Met Office data as many other services, but its local regional focus can be helpful for events and travel in the wider Cardiff area. For hyperlocal conditions, the live widget above updates more frequently.
For a complete overview of conditions across the country, visit our UK weather hub. If you are travelling to other parts of Wales or the South West, the Bristol Weather page provides a useful comparison for the opposite side of the Severn Estuary.