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:
17°C
62.6°F
°C °F

Condition: Mainly Clear

Pressure: 1,022 hPa

Feel like: 17 °C

Temperature: 17°C

Cloud: 48%

Humidity: 74%

Wind: WNW - 5 km/h

Visibility: 13.82 km

Weather forecast

Sun
21 Jun
20°C / 28°C
Drizzle
Mon
22 Jun
21°C / 31°C
Slight Thunderstorm
Tue
23 Jun
22°C / 33°C
Slight Thunderstorm
Wed
24 Jun
22°C / 34°C
Slight Thunderstorm
Thu
25 Jun
18°C / 32°C
Drizzle
Hourly forecast today:
23:00 PM
12° / 17°
12° / 17°
Mainly Clear
74% 12 km/h
00:00 AM
13° / 16°
13° / 16°
Partly Cloudy
78% 6 km/h
01:00 AM
12° / 17°
12° / 17°
Overcast
73% 5 km/h
02:00 AM
12° / 17°
12° / 17°
Mainly Clear
72% 8 km/h
03:00 AM
11° / 17°
11° / 17°
Clear Sky
71% 9 km/h
04:00 AM
10° / 17°
10° / 17°
Partly Cloudy
65% 11 km/h
05:00 AM
9° / 17°
9° / 17°
Partly Cloudy
62% 13 km/h
06:00 AM
9° / 17°
9° / 17°
Clear Sky
60% 14 km/h
07:00 AM
10° / 18°
10° / 18°
Overcast
58% 17 km/h
08:00 AM
11° / 19°
11° / 19°
Overcast
59% 20 km/h
09:00 AM
12° / 20°
12° / 20°
Overcast
60% 22 km/h

30 Day Averages and Extremes

  • Average high 20.1°C
  • Average low 13.63°C
  • Hottest day 34°C (24 June 2026)
  • Coldest day 0°C (03 July 2026)
  • Average humidity 69.2%
  • Days with precipitation 23 days
  • Highest precipitation 88 mm (05 June 2026)

Yesterday's Data

  • Max: 21°C
  • Min: 16°C
  • Total Precipitation: 1 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 26ºC (78.8ºF), consider wearing:
- Breathable shorts or skirts
- Open-toed sandals or light sneakers
- Thin, moisture-wicking socks
- Lightweight t-shirt or tank top

Temperature

Early
16°C / 17°C
Morning
14°C / 17°C
Afternoon
10°C / 21°C
Evening
11°C / 18°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 433
  • CO 212
  • NH3 1
  • NO2 17
  • O3 23
  • PM10 8
  • PM25 5
  • SO2 2
  • CH4 1,447

Sunrise / Sunset

03:55
20:33