Cardiff weather live forecast

Today's maximum temperature in Cardiff is expected to be 21°C. Select a day from the live weather forecast for Cardiff, Wales, UK for more weather parameters.

Saturday
23rd May
21

13

11

UV6
Sunday
24th May
26

11

16

UV7
Monday
25th May
30

16

16

UV7
Tuesday
26th May
28

16

16

UV7
Wednesday
27th May
25

15

12

UV6

5-day weather forecast updated at 04:00 on Friday 22nd May 2026 GMT

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The 5-day weather forecast for Wales (Cardiff) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Cardiff weather forecast by day

Below are the detailed weather forecasts for Cardiff for the next 5 days.

Cardiff weather for Saturday 23rd May 2026

Expect scattered clouds in Cardiff, Wales with a maximum temperature of 21°C, maximum UV of 6 (High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the west.

21
°C maximum temperature
13
°C minimum temperature
scattered clouds
11
hours of sunshine
UV6
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
12
kph wind from W

Cardiff weather for Sunday 24th May 2026

Expect scattered clouds in Cardiff, Wales with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 7 (High) and 16 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 5 kph from the south.

26
°C maximum temperature
11
°C minimum temperature
scattered clouds
16
hours of sunshine
UV7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
5
kph wind from S

Cardiff weather for Monday 25th May 2026

Expect clear skies in Cardiff, Wales with a maximum temperature of 30°C, moderate levels of heat & humidity, maximum UV of 7 (High) and 16 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 13 kph from the south-east.

30
°C maximum temperature
16
°C minimum temperature
clear skies
16
hours of sunshine
UV7
UV index (High)
0
mm of rainfall expected
M
moderate heat & humidity
13
kph wind from SE

Cardiff weather for Tuesday 26th May 2026

Expect clear skies in Cardiff, Wales with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 7 (High) and 16 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 11 kph from the north-east.

28
°C maximum temperature
16
°C minimum temperature
clear skies
16
hours of sunshine
UV7
UV index (High)
0
mm of rainfall expected
L
low heat & humidity
11
kph wind from NE

Cardiff weather for Wednesday 27th May 2026

Expect scattered clouds in Cardiff, Wales with a maximum temperature of 25°C, maximum UV of 6 (High) and 12 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the east.