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    Wales - United Kingdom

    Cardiff weather and climate

    Wales - United Kingdom

    Cardiff weather and climate

    Day

    16 °C

    Night

    8 °C

    Sea

    12 °C

    Precipitation

    66 mm

    in month

    Rainy days

    12 days

    in month

    Daylight

    15 hours

    average

    Sunshine

    6 hours

    average

    Humidity

    82 %

    Weather charts for Cardiff

    JanFebMarAprMayJunJulAugSepOctNovDecTemperature (° C)05101520Precipitation (mm)0130
    Weather overview
    JanFebMarAprMayJunJulAugSepOctNovDecTemperature (° C)05101520Precipitation (mm)0130
    Wet days chart
    JanFebMarAprMayJunJulAugSepOctNovDecWet days81012141618208101214161820
    Sunhours per day chart
    JanFebMarAprMayJunJulAugSepOctNovDecSunhours per day0246810246810
    Wind chart
    JanFebMarAprMayJunJulAugSepOctNovDecWind024682468
    Humidity chart
    JanFebMarAprMayJunJulAugSepOctNovDecHumidity %75808590951007580859095100
    Data backed by 40 years of history

    We make the most from 40 years of historical weather data to predict the best weather conditions.

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    16 500 000 weather records

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    Architecture in Cardiff in sunny weather with few clouds

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    Weather overview for Cardiff

    Weather overview

    Cardiff (United Kingdom) is a place with a mild climate. Temperatures during the day are in the range from 7.8 °C (46.0 °F) in January to 20.9 °C (69.6 °F) in July. Temperatures during the night go from 2.2 °C (36.0 °F) in February to 13.0 °C (55.4 °F) in July. The least rainy month in Cardiff is July with its 11 days of rain, the rainiest month is November, when it rains 16 days.

    January weather

    The sea temperature descents similarly to the previous month, the value of this measure is 7.6 °C (45.6 °F) in Cardiff, while the minimum of the day temperature is observable. The maximum of the wind speed can be noticed in January.

    February weather

    The minimum of the sea temperature is observable, the value of this measure is 7.0 °C (44.6 °F) in Cardiff, and the minimum of the night temperature is observable as well, with its value being 2.2 °C (36.0 °F). The number of rainy days descent's start could be observed, the value of this measure is 13 days, and the beginning of the descent of the rainfall amount could be noticed too in this month. The beginning of the rise of the number of sun hours (without clouds) could be noticed, the value of this measure is 2 hours.

    March weather

    The beginning of the rise of the night temperature could be noticed, the value of this measure is 3.8 °C (38.8 °F) in Cardiff, and the day temperature rise's start could be observed too, its value is 10.2 °C (50.4 °F). The rise of the number of sun hours (without clouds) can be observed, with its value of 4 hours.

    April weather

    The day temperature rises similarly to the previous month, with its value being 12.7 °C (54.9 °F) in Cardiff, while the sea temperature starts to rise, the value of this measure is 9.0 °C (48.1 °F). The beginning of the descent of the number of rainy days could be noticed, with its value being 12 days, while the rainfall amount is on its minimum, its value is 62 mm (2.43 in). The night temperature continues to rise, its value is 5.1 °C (41.2 °F). The number of sun hours (without clouds) rises similarly to the previous month, with its value being 5 hours.

    May weather

    The sea temperature rises similarly to the previous month, its value is 11.8 °C (53.2 °F) in Cardiff, and the rise of the day temperature can be observed as well. The number of sun hours (without clouds) continues to rise, with its value of 6 hours. The night temperature rises similarly to the previous month. The minimum of the humidity is observable, with its value of 82 %.

    June weather

    The tourist season is about to start in Cardiff. The day temperature rises similarly to the previous month, the value of this measure is 18.9 °C (66.0 °F), and the sea temperature continues to rise as well, with its value of 14.6 °C (58.3 °F). The maximum of the number of sun hours (without clouds) is observable, its value is 7 hours. The wind speed reaches its minimum, its value is 3.7. The night temperature continues to rise, with its value of 11.0 °C (51.8 °F).

    July weather

    The maximum of the day temperature is observable, the value of this measure is 20.9 °C (69.6 °F) in Cardiff, while the sea temperature rises similarly to the previous month, with its value of 17.1 °C (62.7 °F). The tourist season is taking place. The minimum of the number of rainy days is observable, with its value being 11 days, while the beginning of the rise of the rainfall amount could be noticed, with its value being 73 mm (2.87 in). The night temperature reaches its maximum, the value of this measure is 13.0 °C (55.4 °F).

    August weather

    The tourist season is close to its peak in Cardiff. The maximum of the sea temperature is observable. The number of rainy days rise's start could be observed, with its value of 13 days, while the rise of the rainfall amount can be observed, with its value being 85 mm (3.34 in).

    September weather

    The tourist season is close to its peak in Cardiff. The beginning of the descent of the sea temperature could be noticed, its value is 16.9 °C (62.4 °F), and the day temperature descent's start could be observed as well in this month. The beginning of the descent of the night temperature could be noticed, the value of this measure is 10.8 °C (51.4 °F). The number of sun hours (without clouds) starts to descent, with its value being 5 hours.

    October weather

    The day temperature descents similarly to the previous month, with its value of 14.3 °C (57.7 °F) in Cardiff, and the sea temperature descents similarly to the previous month as well, with its value being 14.4 °C (57.9 °F). The number of rainy days rise's start could be observed, its value is 15 days, and the rainfall amount rise's start could be observed too, with its value being 116 mm (4.58 in). The number of sun hours (without clouds) descents similarly to the previous month. The descent of the night temperature can be observed.

    November weather

    The day temperature descents similarly to the previous month in Cardiff, and the sea temperature descents similarly to the previous month as well, with its value of 11.5 °C (52.7 °F). The rainfall amount reaches its maximum, with its value being 118 mm (4.64 in), and the maximum of the number of rainy days is observable as well, its value is 16 days. The night temperature continues to descent, its value is 5.3 °C (41.5 °F). The number of sun hours (without clouds) continues to descent, the value of this measure is 2 hours.

    December weather

    The day temperature continues to descent, with its value of 8.2 °C (46.8 °F) in Cardiff, and the descent of the sea temperature can be observed as well, with its value of 9.1 °C (48.3 °F). The beginning of the descent of the rainfall amount could be noticed, with its value being 109 mm (4.28 in), and the beginning of the descent of the number of rainy days could be noticed too, the value of this measure is 16 days. The minimum of the number of sun hours (without clouds) is observable, with its value of 2 hours. The night temperature descents similarly to the previous month, the value of this measure is 3.1 °C (37.6 °F).

    FAQs

    Is April part of the dry season in Cardiff?

    No, April is not a dry month in Cardiff, expect rain approximately 12 days in a month.

    What is the air temperature in Cardiff in May at night?

    The average night temperature in Cardiff in May is 8.2 °C (46.8 °F). The nights will be cool, layers of clothes will be needed for evening and morning walks, the hotel should be equipped with heating.

    How many rainy days can I expect in June in Cardiff?

    There are 11 days, which are rainy in Cardiff in June, that is, days with precipitation more than 2 mm (0.08 in). Converted to days of the week, this means that it will occur on an average of 2.7 days of the week, or in general - 38 % days.

    What is the temperature in Cardiff during the day in July?

    In Cardiff in July, the average daily temperatures will be 20.9 °C (69.6 °F). A comfortable temperature for most people, where it is neither too cold nor too hot, and a large number of activities can be carried out comfortably, including sunbathing by the water. Lighter clothing will be suitable - shorts, skirts, t-shirts, jackets; a light sweater and long trousers may also be useful.

    Is August part of the wet season in Cardiff?

    No, there is no wet season in Cardiff in August - you can expect 13 days of rain during the month.

    What is the sea temperature in September in Cardiff?

    In Cardiff in September expect the sea to be warm at 16.9 °C (62.4 °F). At this sea temperature, swimming probably won't be the best experience. You probably won't like to stay in water for a long time. On the other hand, there are a minority of people who seek these conditions.

    Are there good conditions to visit in Cardiff in October?

    Cardiff can be visited in October - the weather will be moderate. A relatively low temperature of 14.3 °C (57.7 °F) may be ideal for walking or outdoor activities, but some people may have a different idea of the holiday. The temperature of 8.2 °C (46.8 °F) at night may make it better to dine inside or to put on more clothes for a dinner outside.