Weather in Cardiff in September
The weather in Cardiff in September is relatively comfortable for a trip in terms of degrees (11-18), but it might be rainy (around 10 rainfall days) so it is important to prepare yourself with an umbrella and raincoat.
Avg Temp
11° - 18°
Avg Rainy Days
10
Avg Dry Days
20
Avg Snow Days
0
Weather Facts - Cardiff in September
* The warmest temperature recorded in in September is 26°C
* The coldest temperature recorded in Cardiff in September is 4°C
* The average rainfall in Cardiff in September is 49 mm