Cardiff Weather Forecast, Cardiff CF10 3

Today 17 May Wales

Brightening up through this morning with sunny spells, however misty conditions may persist on some coasts in northwest Wales for much of the day. Isolated heavy showers may develop inland this afternoon, perhaps locally thundery. Feeling warmer. Maximum Temperature 20C.

Tonight 17 May Wales

Any showers tending to fade away this evening to leave a dry night. Areas of low cloud developing once again with mist and fog possible in places. Staying generally mild. Minimum Temperature 11C.

Sat 18 May Wales

A mainly cloudy day with bright or sunny intervals. Showers are likely in places, these turning heavy and thundery by the afternoon. Feeling warm in the sunshine. Maximum Temperature 21C.

Sun 19 May Wales

Mainly dry on Sunday and Monday with some warm sunshine, though often cloudier in the mornings. A chance of showers again from Tuesday.

Mon 20 May Wales

Mainly dry on Sunday and Monday with some warm sunshine, though often cloudier in the mornings. A chance of showers again from Tuesday.

Tue 21 May Wales

Mainly dry on Sunday and Monday with some warm sunshine, though often cloudier in the mornings. A chance of showers again from Tuesday.

Wed 22 May Wales

There is a lot of uncertainty in this period, even at the start when the UK will be in-between low pressure over the near continent trying to keep things unsettled and potentially thundery; high pressure to the west or southwest which would settle things down; and finally low pressure to the north or northwest which may being a more climatological split in conditions between the south and north. Overall though, one way or another, it looks like remaining fairly unsettled across much of the UK, with further rain, showers or even thunderstorms in places, though there will be some sunshine between times, the best of this possibly in southwestern parts. Both rainfall amounts and temperatures are likely to be a little above average, but some large spatial differences are likely.

Thu 23 May Wales

There is a lot of uncertainty in this period, even at the start when the UK will be in-between low pressure over the near continent trying to keep things unsettled and potentially thundery; high pressure to the west or southwest which would settle things down; and finally low pressure to the north or northwest which may being a more climatological split in conditions between the south and north. Overall though, one way or another, it looks like remaining fairly unsettled across much of the UK, with further rain, showers or even thunderstorms in places, though there will be some sunshine between times, the best of this possibly in southwestern parts. Both rainfall amounts and temperatures are likely to be a little above average, but some large spatial differences are likely.

Cardiff Weather Forecast

Today 17 May Wales

Tonight 17 May Wales

Sat 18 May Wales

Sun 19 May Wales

Mon 20 May Wales

Tue 21 May Wales

Wed 22 May Wales

Thu 23 May Wales

Temperature Forecast Met Office

Temperature Real-Time

Cobbacombe Cross (Devon) Radar

National Satellite

National Synoptic

Cardiff Temperature Statistics

May Temperature

St-athan (20km)

Lowest 19 January, 2024

Average 2024

Highest 10 May, 2024

Lowest 18 April, 2024

Average April

Highest 12 April, 2024

Lowest 4 May, 2024

Average May

Highest 10 May, 2024

Climate (2019–Present)

St-athan (20km)

Average Low 2019–2024

Average 2019–2024

Average High 2019–2024