Tomorrow in Cardiff looks
overcast, with a high of 44°
and an overnight low of 33°.
There is a 87% chance of rain - plan accordingly.
Winds top out near 16 mph,
and the UV index reaches 1 (low).
The annual climate averages about 171 wet days and 1215 mm (47.8 inches) of precipitation. December is wettest, while June offers the clearest contrast.
Start with the rain pattern
Rain and sunshineAbout 1215 mm (47.8 inches) falls across 171 wet days, with 7.7 hours of sunshine on an average day.
Seasonal changeJuly highs reach 69°F (20°C), while January lows fall to 37°F (3°C).
Typical day and nightCardiff averages 57°F (14°C) by day and 46°F (8°C) at night across the year.
About 171 days bring measurable precipitation, totalling 47.8 inches (1215 mm). That works out at roughly 7.1 mm on an average wet day.
Which month is warmest in Cardiff?
July, averaging 69°F (20°C) by day and 56°F (13°C) overnight. The hottest single day in our 2015-2024 record for this location reached 91°F (33°C).
What is the rainiest month in Cardiff?
December, at 5.6 inches (143 mm) over about 17 days. June is the driest month, at 2.6 inches (66 mm).
Is Cardiff cold in winter?
January nights average 37°F (3°C). Chilly rather than harsh - hard freezes are uncommon.
What is the best time to visit Cardiff?
The best time to visit Cardiff is generally April to September, when warm days, manageable rainfall and plenty of daylight line up. Daytime temperatures in that window sit near 64°F (18°C), with rain on about 13 days a month. For the same question asked the other way round, see where else is warm in April.
How humid does Cardiff get?
Relative humidity averages 82% across the year, which reads as very humid. The most comfortable stretch falls in the drier half of the year.
What is the coldest month in Cardiff?
January, with highs of 46°F (8°C) and lows near 37°F (3°C). The coldest day in the 2015-2024 record fell to 22°F (-6°C).
Does it snow in Cardiff?
Yes - about 2 days a year carry measurable snowfall, concentrated March.