Cardiff weather live forecast

Today's maximum temperature in Cardiff is expected to be 14°C. Select a day from the live weather forecast for Cardiff, Wales, UK for more weather parameters.

Sunday
17th May
14

8

1

3
Monday
18th May
13

9

0

2
Tuesday
19th May
15

11

3

3
Wednesday
20th May
15

11

2

5
Thursday
21st May
18

11

3

4

5-day weather forecast updated at 04:00 on Sunday 17th 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 Sunday 17th May 2026

Expect mostly cloudy with light rain in Cardiff, Wales with a maximum temperature of 14°C, maximum UV of 3 (Moderate) and 1 hour of bright sunshine. There are 0-2 mm of rainfall expected with 50% chance of some rain and a moderate breeze of 22 kph from the west.

14
°C maximum temperature
8
°C minimum temperature
mostly cloudy with light rain
1
hour of sunshine
3
UV index (Moderate)
50
% chance of some rain
<2
mm of rainfall expected
14
°C wind chill
22
kph wind from W

Cardiff weather for Monday 18th May 2026

Expect cloudy with some rain in Cardiff, Wales with a maximum temperature of 13°C, maximum UV of 2 (Low) and no hours of bright sunshine. There are 5-10 mm of rainfall expected with 79% chance of some rain and a gentle breeze of 16 kph from the south-west.

13
°C maximum temperature
9
°C minimum temperature
cloudy with some rain
0
hours of sunshine
2
UV index (Low)
79
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
16
kph wind from SW

Cardiff weather for Tuesday 19th May 2026

Expect mostly cloudy with rain in Cardiff, Wales with a maximum temperature of 15°C, maximum UV of 3 (Moderate) and 3 hours of bright sunshine. There are 10-20 mm of rainfall expected with 85% chance of some rain and a moderate breeze of 25 kph from the south-west.

15
°C maximum temperature
11
°C minimum temperature
mostly cloudy with rain
3
hours of sunshine
3
UV index (Moderate)
85
% chance of some rain
<20
mm of rainfall expected
15
°C wind chill
25
kph wind from SW

Cardiff weather for Wednesday 20th May 2026

Expect mostly cloudy with light rain in Cardiff, Wales with a maximum temperature of 15°C, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 2-5 mm of rainfall expected with 51% chance of some rain and a moderate breeze of 24 kph from the south-west.

15
°C maximum temperature
11
°C minimum temperature
mostly cloudy with light rain
2
hours of sunshine
5
UV index (Moderate)
51
% chance of some rain
<5
mm of rainfall expected
0
no heat & humidity
24
kph wind from SW

Cardiff weather for Thursday 21st May 2026

Expect mostly cloudy with light rain in Cardiff, Wales with a maximum temperature of 18°C, maximum UV of 4 (Moderate) and 3 hours of bright sunshine. There are 0-2 mm of rainfall expected with 17% chance of some rain and a moderate breeze of 21 kph from the west.