Cardiff Climate Guide to the Average Weather & Temperatures with Graphs Elucidating Sunshine and Rainfall Data & Information about Wind Speeds & Humidity:

  • Cardiff, Wales latitude & longitude; 51°30'N 3°10'W.
  • Altitude; 62 m (203 ft).
  • The average temperature in Cardiff, Wales is 10.3 °C (50 °F).
  • The range of average monthly temperatures is 12.5 °C.
  • The warmest average max/ high temperature is 21 °C (70 °F) in August.
  • The coolest average min/ low temperature is 2 °C (36 °F) in January & February.
  • Cardiff receives on average 1065 mm (41.9 in) of precipitation annually or 89 mm (3.5 in) each month.
  • On balance there are 180 days annually on which greater than 0.1 mm (0.004 in) of precipitation (rain, sleet, snow or hail) occurrs or 15 days on an average month.
  • The month with the driest weather is March & June when on balance 63 mm (2.5 in) of rainfall (precipitation) occurrs.
  • The month with the wettest weather is November when on balance 116 mm (4.6 in) of rain, sleet, hail or snow falls across 17 days.
  • Mean relative humidity for an average year is recorded as 81.3% and on a monthly basis it ranges from 73% in June to 89% in January & December.
  • There is an average range of hours of sunshine in Cardiff of between 1.5 hours per day in December and 6.9 hours per day in June.
  • On balance there are 1553 sunshine hours annually and approximately 4.3 sunlight hours for each day.

Cardiff Climate Graph (Metric | Imperial units)

Cardiff Climate Graph

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Cardiff Weather Averages

  Average Minimum Temperatures in Cardiff, Wales (°C) Average Maximum Temperature in Cardiff, Wales (°C) Cardiff Average Temperature (°C) Average Sea Temp (°C) Average Precipitation/ Rainfall (mm) Wet Days (>0.1 mm) Average Sunlight Hours/ Day Relative Humidity (%) Average Wind Speed in Cardiff (Beaufort) Average Number of Days with Frost  
Weather in Cardiff in January 2 7 4.5 - 108 18 1.7 89 - - Average Temperature in Cardiff in January
Weather in Cardiff in February 2 7 4.5 - 72 14 2.7 87 - - Average Temperature in Cardiff in February
Weather in Cardiff in March 3 10 7 - 63 13 4.0 82.0 - - Average Temperature in Cardiff in March
Weather in Cardiff in April 5 13 9 - 65 13 5.6 74 - - Average Temperature in Cardiff in April
Weather in Cardiff in May 8 16 12 - 76 13 6.4 74 - - Average Temperature in Cardiff in May
Weather in Cardiff in June 11 19 15 - 63 13 6.9 73 - - Average Temperature in Cardiff in June
Weather in Cardiff in July 12 20 16 - 89 14 6.2 76 - - Average Temperature in Cardiff in July
Weather in Cardiff in August 13 21 17 - 97 15 6.0 78 - - Average Temperature in Cardiff in August
Weather in Cardiff in September 11 18 15 - 99 16 4.7 81 - - Average Temperature in Cardiff in September
Weather in Cardiff in October 8 14 11 - 109 16 3.4 85 - - Average Temperature in Cardiff in October
Weather in Cardiff in November 5 10 8 - 116 17 1.9 88 - - Average Temperature in Cardiff in November
Weather in Cardiff in December 3 8 5.5 - 108 18 1.5 89 - - Average Temperature in Cardiff in December

Cardiff Climograph/ Climate Chart (imperial)

Cardiff Temperature Chart

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Cardiff Temperatures in Farenheit

  Average Minimum Temperatures in Cardiff, Wales (°F) Average Maximum Temperature in Cardiff, Wales (°F) Average Temperature (°F) Average Sea Temp (°F) Average Precipitation/ Rainfall (in) Wet Days (>0.004 in) Average Sunlight Hours/ Day Relative Humidity (%) Average Wind Speed (Beaufort) Average Number of Days with Frost  
Temperatures in Cardiff in January 36 45 40 - 4.3 18 1.7 89 - - Climate in Cardiff in January
Temperatures in Cardiff in February 36 45 40 - 2.8 14 2.7 87 - - Climate in Cardiff in February
Temperatures in Cardiff in March 37 50 44 - 2.5 13 4.0 82 - - Climate in Cardiff in March
Temperatures in Cardiff in April 41 55 48 - 2.6 13 5.6 74 - - Climate in Cardiff in April
Temperatures in Cardiff in May 46 61 54 - 3.0 13 6.4 74 - - Climate in Cardiff in May
Temperatures in Cardiff in June 52 66 59 - 2.5 13 6.9 73 - - Climate in Cardiff in June
Temperatures in Cardiff in July 54 68 61 - 3.5 14 6.2 76 - - Climate in Cardiff in July
Temperatures in Cardiff in August 55 70 63 - 3.8 15 6.0 78 - - Climate in Cardiff in August
Temperatures in Cardiff in September 52 64 58 - 3.9 16 4.7 81 - - Climate in Cardiff in September
Temperatures in Cardiff in October 46 57 52 - 4.3 16 3.4 85 - - Climate in Cardiff in October
Temperatures in Cardiff in November 41 50 46 - 4.6 17 1.9 88 - - Climate in Cardiff in November
Temperatures in Cardiff in December 37 46 42 - 4.3 18 1.5 89 - - Climate in Cardiff in December

Forum: Cardiff, Wales

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