What is the weather like in Cardiff right now?
It is currently 18°C in Cardiff with rain. It feels like 20°C, humidity is 91% and the wind is SSW 4 km/h.
Today (Saturday) reaches a maximum of 21°C and a minimum of 16°C, with 18.3 mm of rain and 2.3 hours of sunshine. Sunrise is at 06:20 and sunset at 20:06.
Cardiff weather tomorrow
Tomorrow (Sunday) the maximum temperature in Cardiff is 21°C and the minimum 16°C. Around 11.1 mm of rain is expected with 5 hours of sunshine, and the chance of rain is 100%. The data is refreshed several times a day through Open-Meteo.
Cardiff weather this week and next week
Over the coming week the average maximum temperature in Cardiff sits around 20°C and the average minimum around 15°C. Roughly 50.8 mm of rain is expected, spread across 6 days, with 0 largely sunny days.
The warmest day in the 14 day forecast for Cardiff is Wednesday 9 Sept at 22°C. The coldest night falls on Sunday 6 Sept at 8°C. Click any day for hourly detail.
Rain, sunshine and UV in Cardiff
A daily rainfall total says little on its own: the same 5 mm can be one short downpour or a grey day of drizzle, which is why the hourly chart above is often the more useful of the two. Over the next fortnight the highest UV index for Cardiff is 5, which is low to moderate.
How reliable is a 14 day forecast?
The first three to five days are generally very accurate. After that the certainty drops off and it is better read as a trend than as an exact daily prediction. Our data comes from Open-Meteo, which combines national weather models — among them the Met Office, DWD and ECMWF — and recomputes them several times a day using measurements from stations worldwide.
Forecast for Cardiff last updated: 29 August 2026 at 14:25. See also all United Kingdom forecasts and the European weather map.