🇬🇧 Weather in Cardiff
Map Overlays:
Hourly Forecast for Cardiff
12:00
14°
17%
13:00
15°
13%
14:00
15°
16%
15:00
15°
15%
16:00
15°
14%
17:00
15°
18%
18:00
13°
21%
19:00
13°
23%
20:00
12°
28%
21:00
12°
29%
22:00
13°
30%
23:00
13°
35%
00:00
14°
29%
01:00
14°
26%
02:00
14°
27%
03:00
14°
50%
04:00
14°
72%
05:00
15°
57%
06:00
15°
54%
07:00
15°
45%
08:00
15°
55%
09:00
15°
67%
10:00
16°
77%
11:00
16°
50%
14-Day Forecast for Cardiff
2026-10-11
Overcast
15° /
7°
2026-10-12
Overcast
17° /
12°
2026-10-13
Sunny
18° /
10°
2026-10-14
Overcast
17° /
9°
2026-10-15
Overcast
19° /
12°
2026-10-16
Sunny
15° /
7°
2026-10-17
Sunny
14° /
5°
Additional Forecasts for Cardiff
Air Quality
💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 209.0 μg/m³
O₃ (Ozone) 50.0 μg/m³
NO₂ (Nitrogen Dioxide) 14.2 μg/m³
SO₂ (Sulphur Dioxide) 1.9 μg/m³
PM2.5 (Fine particles) 5.8 μg/m³
PM10 (Coarse particles) 14.8 μg/m³
Historical Weather
Weather Forecasts for Other Cities in United Kingdom
Weather in Cardiff — FAQ
Answers refreshed each request based on current conditions in Cardiff.
What is the weather like right now in Cardiff?
Right now in Cardiff, United Kingdom the temperature is 12.5°C (feels like 11.1°C), with overcast. Relative humidity is 69% and wind is 4.0 km/h.
What is today's high and low temperature in Cardiff?
Today's forecast high in Cardiff is 15.3°C and the overnight low is 7.4°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Cardiff today?
The chance of precipitation in Cardiff today is 34%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Cardiff differ from nearby cities?
Even short distances can change temperatures noticeably. Cardiff's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.