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Cardiff Weather September
Cardiff is located in oceanic climate that can be described as high humidity and moderate seasonal temperature fluctuations warm summer and soft but windy winter.
To help you choose the best time to travel, you can find climate data below on the weather in Cardiff in September.
 | average daily high | +18.8°C |
 | average daily low | +10.5°C |
 | sea temperature | +16.5°C |
 | daytime | 13.2 h |
 | sunny / overcast hours | 5 / 8.2 |
 | average monthly precipitation | 94 mm |
Best time with the soft weather for the sightseeing and long walks in Cardiff are June, July, August, September.
Temperature in Cardiff
In September the average daily maximum in Cardiff is +18.8°C, and the minimum +10.5°C.
The hottest September day on record is +27°C, and the coldest +2.4°C.
Best beach resorts in September:
Barcelona
Spain
Nice
France
Rimini
Italy
Cannes
France
Lisbon
Portugal
Marseille
France
Daylight hours
There are 13.2 hours of daylight in Cardiff in September. Out of these, on average 5 are sunny, which means it is mostly cloudy.
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Sea temperature
The average monthly temperature in the Bristol Channel on the beaches of Cardiff in September is +16.5°C.
The water is considered very cool, but some hardy people might bathe in it for 10-15 minutes.
Precipitation
The amount of precipitation in Cardiff in September is usually 94 mm, which may cause a change of plans on certain days.