There were nearly 21 raindays in the United Kingdom in December 2023. A rainday is when one millimeter or more of rain occurs in a day. The highest number of raindays was recorded in December 2015, at 22.2
Fourth quarter the wettest
The wettest periods of the year tend to be the start and the end. In 2023, the fourth quarter was the wettest, with an average of 458 mm of rainfall. October and December of that year recorded the highest levels of monthly rainfall at 172 and 189 mm, respectively.
Regional weather
Due to the United Kingdom’s geographical location and landscape, weather conditions can vary greatly. Scotland is on average the wettest country. The majority of rainfall is concentrated in the Scottish Highlands, as precipitation often occurs in mountainous regions. As rainfall comes in from the Atlantic, it is the northern and western parts of the UK that are most susceptible to precipitation. This explains why England is the driest of all the regions, as rain deposits reduce as they move east.
Total number of monthly rain days in the United Kingdom (UK) from 2015 to 2023
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Met Office. (January 1, 2024). Total number of monthly rain days in the United Kingdom (UK) from 2015 to 2023 [Graph]. In Statista. Retrieved July 18, 2024, from https://www.statista.com/statistics/584922/number-of-raindays-in-uk/?session=79c0dd3331b599b72f33c0e043d0509c
Met Office. "Total number of monthly rain days in the United Kingdom (UK) from 2015 to 2023." Chart. January 1, 2024. Statista. Accessed July 18, 2024. https://www.statista.com/statistics/584922/number-of-raindays-in-uk/?session=79c0dd3331b599b72f33c0e043d0509c
Met Office. (2024). Total number of monthly rain days in the United Kingdom (UK) from 2015 to 2023. Statista. Statista Inc.. Accessed: July 18, 2024. https://www.statista.com/statistics/584922/number-of-raindays-in-uk/?session=79c0dd3331b599b72f33c0e043d0509c
Met Office. "Total Number of Monthly Rain Days in The United Kingdom (Uk) from 2015 to 2023." Statista, Statista Inc., 1 Jan 2024, https://www.statista.com/statistics/584922/number-of-raindays-in-uk/?session=79c0dd3331b599b72f33c0e043d0509c
Met Office, Total number of monthly rain days in the United Kingdom (UK) from 2015 to 2023 Statista, https://www.statista.com/statistics/584922/number-of-raindays-in-uk/?session=79c0dd3331b599b72f33c0e043d0509c (last visited July 18, 2024)
Total number of monthly rain days in the United Kingdom (UK) from 2015 to 2023 [Graph], Met Office, January 1, 2024. [Online]. Available: https://www.statista.com/statistics/584922/number-of-raindays-in-uk/?session=79c0dd3331b599b72f33c0e043d0509c