September Rainfall and Precipitation in Wales
Wales Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Wales - and find the best time to visit. See also: Wales weather by month.
Best Places to Visit in Wales in September
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Wales.
Monthly precipitation
0 mm (0 in) dry → 150 mm (5.9 in) wet
Marker color shows total monthly precipitation in September: pale blue is dry, deep blue is wet.
Wales precipitation in September: frequently asked questions
How much rainfall does Wales, the United Kingdom receive in September?
Rainfall in Cardiff during September is on the lighter side, averaging about 90 mm (3.5 in). Expect predominantly dry weather punctuated by short showers.
How many days does it rain in Wales, the United Kingdom in September?
Cardiff sees roughly 16 days rainy days during September.
Is September part of the rainy season in Wales, the United Kingdom?
No. September sits outside the typical rainy season in Wales, the United Kingdom, so you can expect drier conditions overall.
What is the wettest city in September in Wales, the United Kingdom?
In our database, Swansea stands out as having an average rainfall level of 103 mm (4.1 in), making it the wettest location.
What is the driest city in September in Wales, the United Kingdom?
Based on our database, Cardiff sees the least rainfall in Wales, the United Kingdom in September, with around 90 mm (3.5 in) on average.
Interested in more climate information?
We have much more information about the climate in Wales.
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