Cardiff, United Kingdom Weather

  1. Cardiff, United Kingdom Weather
  2. Current conditions
  3. Weather forecast
  4. Averages and extremes
  5. Yesterday's Data
  6. Temperature and possibility of rain in Cardiff over the next 12 hours
  7. Temperature and possibility of rain in Cardiff in the coming days
  8. Rainfall in Cardiff in the coming days
  9. Cardiff Weather Summary
  10. Weather averages by month
  11. Cardiff's weather
  12. Frequently asked questions
  13. Comments
Cardiff, Weather
(Photo by Viktor Forgacs on Unsplash)

Current conditions

Updated:
20°C
68.0°F
°C °F

Condition: Overcast

Pressure: 1,023 hPa

Feel like: 17 °C

Temperature: 20°C

Cloud: 80%

Humidity: 42%

Wind: W - 14 km/h

Visibility: 32.02 km

Weather forecast

Fri
07 Aug
12°C / 25°C
Overcast
Sat
08 Aug
17°C / 28°C
Mainly Clear
Sun
09 Aug
18°C / 26°C
Overcast
Mon
10 Aug
17°C / 27°C
Drizzle
Tue
11 Aug
18°C / 29°C
Partly Cloudy
Hourly forecast today:
14:00 PM
6° / 20°
6° / 20°
Overcast
42% 31 km/h
15:00 PM
7° / 20°
7° / 20°
Partly Cloudy
44% 34 km/h
16:00 PM
7° / 20°
7° / 20°
Partly Cloudy
43% 32 km/h
17:00 PM
8° / 19°
8° / 19°
Partly Cloudy
49% 38 km/h
18:00 PM
9° / 18°
9° / 18°
Clear Sky
54% 36 km/h
19:00 PM
9° / 17°
9° / 17°
Clear Sky
58% 37 km/h
20:00 PM
9° / 17°
9° / 17°
Clear Sky
61% 30 km/h
21:00 PM
10° / 16°
10° / 16°
Partly Cloudy
66% 23 km/h
22:00 PM
9° / 15°
9° / 15°
Overcast
67% 23 km/h
23:00 PM
9° / 15°
9° / 15°
Clear Sky
69% 19 km/h
00:00 AM
9° / 14°
9° / 14°
Clear Sky
70% 13 km/h

30 Day Averages and Extremes

  • Average high 21.93°C
  • Average low 14.2°C
  • Hottest day 29°C (11 August 2026)
  • Coldest day 0°C (19 August 2026)
  • Average humidity 60.3%
  • Days with precipitation 15 days
  • Highest precipitation 70 mm (03 August 2026)

Yesterday's Data

  • Max: 20°C
  • Min: 12°C
  • Total Precipitation: 0 mm

Temperature and possibility of rain in Cardiff over the next 12 hours

Temperature and possibility of rain in Cardiff in the coming days

Rainfall in Cardiff in the coming days

Cardiff Climate Summary

Cardiff features a Marine west coast, warm summer (Köppen classification: Cfb), with an average annual temperature of 11.35ºC (52.43ºF), which is about 0.6% higher than the national average for United Kingdom. Annually, the city experiences approximately 26.81 millimeters (1.06 inches) of rainfall, spread across 72.27 rainy days, accounting for 19.8% of the year.

Longitude 51.481581
Latitude -3.17909
Yearly high temperature 13.14ºC (55.65ºF)
Yearly low temperature 8.04ºC (46.47ºF)
Hottest month July 19.3ºC (66.74ºF)
Coldest month December 5.13ºC (41.23ºF)
Yearly precip 26.81mm (1.06in)
Days with rainfall 72.27 days (19.8%)
Driest month April (81.21%)
Wettest month December (85.56%)

Weather averages by month

Month High / Low (°C) Rain
January 7.56° / 3.96° 5.73 days
February 7.84° / 3.98° 6.91 days
March 9.7° / 4.32° 4.45 days
April 12.32° / 5.91° 3.09 days
May 14.69° / 8.37° 5.73 days
June 17.22° / 11.04° 6.27 days
July 19.3° / 12.96° 5.09 days
August 18.72° / 13.11° 7.82 days
September 17.21° / 11.41° 4.18 days
October 14.07° / 9.57° 7.91 days
November 10.44° / 6.76° 7.18 days
December 8.57° / 5.13° 7.91 days

Cardiff's weather

Frequently asked questions

1. What is the hottest month in Cardiff?

July has the highest average monthly temperature (daily mean of 19.3ºC) and December are the coolest (daily mean of 5.13ºC).

2. What should I wear in Cardiff today?

For today's warm weather in Cardiff, with temperatures between 18ºC to 21ºC (64.4ºF to 69.8ºF), you might consider wearing:
- Light, breathable socks
- Comfortable sandals or sneakers
- T-shirt or short-sleeve blouse
- Shorts or lightweight trousers

Temperature

Early
9°C / 13°C
Morning
7°C / 17°C
Afternoon
7°C / 20°C
Evening
10°C / 16°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 433
  • CO 145
  • NH3 1
  • NO2 2
  • O3 78
  • PM10 6
  • PM25 3
  • SO2 0
  • CH4 1,364

Sunrise / Sunset

04:46
19:51