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:
13°C
55.4°F
°C °F

Condition: Clear Sky

Pressure: 1,025 hPa

Feel like: 11 °C

Temperature: 13°C

Cloud: 0%

Humidity: 66%

Wind: NE - 6 km/h

Visibility: 32.9 km

Weather forecast

Fri
25 Sep
10°C / 18°C
Mainly Clear
Sat
26 Sep
13°C / 19°C
Moderate Drizzle
Sun
27 Sep
12°C / 15°C
Drizzle
Mon
28 Sep
11°C / 18°C
Slight Thunderstorm
Tue
29 Sep
11°C / 18°C
Drizzle
Hourly forecast today:
00:00 AM
7° / 13°
7° / 13°
Clear Sky
66% 15 km/h
01:00 AM
6° / 12°
6° / 12°
Clear Sky
66% 17 km/h
02:00 AM
6° / 12°
6° / 12°
Clear Sky
68% 18 km/h
03:00 AM
6° / 12°
6° / 12°
Clear Sky
70% 16 km/h
04:00 AM
6° / 11°
6° / 11°
Clear Sky
72% 18 km/h
05:00 AM
7° / 11°
7° / 11°
Clear Sky
75% 19 km/h
06:00 AM
7° / 11°
7° / 11°
Clear Sky
78% 20 km/h
07:00 AM
8° / 11°
8° / 11°
Clear Sky
79% 18 km/h
08:00 AM
9° / 12°
9° / 12°
Overcast
79% 17 km/h
09:00 AM
10° / 13°
10° / 13°
Overcast
80% 20 km/h
10:00 AM
11° / 15°
11° / 15°
Partly Cloudy
78% 17 km/h

30 Day Averages and Extremes

  • Average high 17.17°C
  • Average low 11.7°C
  • Hottest day 22°C (21 September 2026)
  • Coldest day 0°C (06 October 2026)
  • Average humidity 76.27%
  • Days with precipitation 24 days
  • Highest precipitation 71 mm (12 September 2026)

Yesterday's Data

  • Max: 21°C
  • Min: 11°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 mild weather in Cardiff, with temperatures between 15ºC to 18ºC (59.0ºF to 64.4ºF), consider wearing:
- Comfortable jeans or slacks
- Lightweight sweater or cardigan
- Cotton socks
- Casual sneakers or loafers

Temperature

Early
6°C / 12°C
Morning
10°C / 13°C
Afternoon
13°C / 21°C
Evening
15°C / 17°C

Air quality

Good

Satisfactory air quality, minimal pollution, low risk

  • CO2 435
  • CO 196
  • NH3 1
  • NO2 6
  • O3 61
  • PM10 6
  • PM25 3
  • SO2 0
  • CH4 1,433

Sunrise / Sunset

06:03
18:04