Current Weather and Forecast in Cardiff, United Kingdom
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Explore Cardiff's typical temperatures and climate below - Live data returns shortly.
About the weather in Cardiff
Cardiff has an oceanic climate. July is the warmest month, with average highs of 69°, and January the coldest, when nights fall to around 37°. December brings the most rain, on about 17 days, while June is the sunniest, with 11.7 hours of sunshine a day. Over a whole year it rains on roughly 171 days.
Cardiff climate guide: monthly averages, seasons and the best time to visit
Common questions
How many rainy days does Cardiff get in a 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.