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:
25°C
77.0°F
°C °F

Condition: Clear Sky

Pressure: 1,020 hPa

Feel like: 27 °C

Temperature: 25°C

Cloud: 0%

Humidity: 63%

Wind: E - 6 km/h

Visibility: 23.58 km

Weather forecast

Tue
23 Jun
23°C / 35°C
Slight Thunderstorm
Wed
24 Jun
19°C / 34°C
Slight Thunderstorm
Thu
25 Jun
17°C / 23°C
Overcast
Fri
26 Jun
16°C / 19°C
Overcast
Sat
27 Jun
14°C / 20°C
Overcast
Hourly forecast today:
20:00 PM
17° / 25°
17° / 25°
Clear Sky
63% 13 km/h
21:00 PM
18° / 24°
18° / 24°
Clear Sky
67% 17 km/h
22:00 PM
17° / 24°
17° / 24°
Clear Sky
67% 16 km/h
23:00 PM
17° / 23°
17° / 23°
Clear Sky
69% 15 km/h
00:00 AM
17° / 23°
17° / 23°
Clear Sky
71% 19 km/h
01:00 AM
17° / 23°
17° / 23°
Clear Sky
71% 19 km/h
02:00 AM
17° / 22°
17° / 22°
Clear Sky
72% 20 km/h
03:00 AM
17° / 22°
17° / 22°
Clear Sky
74% 23 km/h
04:00 AM
17° / 21°
17° / 21°
Clear Sky
76% 22 km/h
05:00 AM
17° / 21°
17° / 21°
Clear Sky
77% 23 km/h
06:00 AM
17° / 22°
17° / 22°
Clear Sky
75% 25 km/h

30 Day Averages and Extremes

  • Average high 19.97°C
  • Average low 13.43°C
  • Hottest day 35°C (23 June 2026)
  • Coldest day 0°C (05 July 2026)
  • Average humidity 68.47%
  • Days with precipitation 22 days
  • Highest precipitation 73 mm (16 June 2026)

Yesterday's Data

  • Max: 31°C
  • Min: 20°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 very hot weather in Cardiff, with the high temperatures above 33ºC (91.4ºF), consider wearing:
- Sleeveless tops or vests
- Ultra-thin, breathable socks
- Light, natural fabrics (like cotton or linen)
- Broad-brimmed sun hat

Temperature

Early
16°C / 21°C
Morning
16°C / 24°C
Afternoon
18°C / 31°C
Evening
18°C / 24°C

Air quality

Moderate

Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals

  • CO2 452
  • CO 143
  • NH3 3
  • NO2 8
  • O3 106
  • PM10 17
  • PM25 9
  • SO2 0
  • CH4 1,450

Sunrise / Sunset

03:56
20:34