Monthly weather forecast and climate
Cardiff, United Kingdom

What is the coldest month in Cardiff?

The coldest month in Cardiff, United Kingdom, is January, with an average high-temperature of 8.3°C (46.9°F) and an average low-temperature of 2.3°C (36.1°F).

How many days does it rain in Cardiff?

In Cardiff, during the entire year, the rain falls for 148.8 days, and collects up to 1152.1mm (45.4") of precipitation.

What is the driest month in Cardiff?

June is the month with the least rainfall. Rain falls for 10.1 days and accumulates 66.6mm (2.6") of precipitation.

What is the warmest month in Cardiff?

The warmest month in Cardiff, United Kingdom, is July, with an average high-temperature of 21.7°C (71.1°F) and an average low-temperature of 13.1°C (55.6°F).

What is the wettest month in Cardiff?

The month with the most rainfall is October when the rain falls for 15.5 days and typically aggregates up to 133.5mm (5.3") of precipitation.
Average temperature - Cardiff, United Kingdom
Average rainfall - Cardiff, United Kingdom

The wettest month (with the highest rainfall) is October (133.5mm).
The driest month (with the lowest rainfall) is June (66.6mm).

Average rainfall days - Cardiff, United Kingdom

The month with the highest number of rainy days is January (15.7 days).
The month with the lowest number of rainy days is June (10.1 days).

Average sea temperature - Cardiff, United Kingdom

Best months for swimming (with the highest average sea temperature) are August and September (16.6°C).
The coldest month (with the lowest average sea temperature) is March (8.7°C).

Average daylight / Average sunshine - Cardiff, United Kingdom
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