Weather in September in Cardiff, Wales

< September >
	Normal Max/ High Temperature	18°C (64°F)
	Average Temperature	14°C (57°F)
	Min/ Low Temperature	11°C (51°F)
	Normal Precipitation	92mm (3.6in)
	Number of Wet Days (probability of rain on a day)	16 (53%)
	Average Sunlight per day	04h 30'
	Average Daylight per day	12h 35'
	Sunny (Cloudy) Daylight Hours	37% (63%)
	Sun altitude at solar noon on the 21st day.	39.2°

• The average temperature in Cardiff, Wales in September is mild at 14 °C (57.2 °F).
• Afternoons can be very mild with average high temperatures reaching 17.5 °C (63.5 °F).
• Overnight temperatures are generally quite mild with an average low of 10.5 °C (50.9 °F).
• In September the range/ variation of diurnal average temperatures is 7 °C (12.6 °F).
• Precipitation averages for September are high with 92mm (3.6 in) recorded across 16 days.
• In September the heavens above Cardiff, Wales are slightly fair with an average of a modest 4h 30' of resplendent solar radiation daily.
• The shortest day is 11h 36' long and the longest day is 13h 33' long with an average length of 12h 35'.
• There are approximately 7h 50' per day when the sun is occluded by cloud, haze, fog etc.
• It is sunny approximately 36.5% of daylight hours and cloudy 63.5% of daylight hours.

Weather Trend Graph for September in Cardiff, Wales, Uk