What is the average annual rainfall in the UK?

The UK is known for its rainy weather. This is due to its moderate sea climate which allows rainfall throughout the year. The average annual rainfall in the UK is around 1154 mm. On average it rains the most in October (127.1 mm), and the least in May (70 mm).



How many days a year on average does it rain in the UK?

Over the past 30 years it has rained on average 156.2 days a year in the UK. In January it rains most often, over the past 30 years it rained on average 15.5 days. November (15.2) and October (15) are next in lead. June (11) is the month where it rains least often, followed by may (11.2)

Where does it rain the most in the UK?

It rains the most in the mountains of Wales, Scotland, the Pennines in Northern England and the Moors of South West England. In some of these places there can be an annual rainfall of 4577 mm, making these places one of the the wettest places in Europe. The wettest place in the UK is Crib Goch, where over the past 30 years it has rained on average 4473 mm per year!  

Does it rain a lot everywhere in the UK?

No, in some places in the UK is doesn’t rain that much. In London in rains less than 650 mm per year, which is actually less than cities like Milan, Sydney or New York. In the south, south-east and East Anglia is rains less than 700 mm per year. With an annual rainfall of around 600 mm, Essex, Cambridgeshire, parts of North Yorkshire, the East Riding of Yorkshire, Suffolk and Norfolk, belong to the driest areas of the UK.

Where in the world does it rain the most?

Mount Wai-ale-ale in Hawaii is the rainiest place on earth. Annually it rains here on average 11455 mm. However, the record for most rainfall in a year belongs to a place in India. At the foot of the Himalaya mountains they once measured 26467 mm of rainfall in one year. 

Where in the world does it rain the least?

The driest place on earth is the Atacama desert in Chili (South-America). On average it rains here less than 1 mm per year. There are places in this desert where it hasn’t rained in over 400 years. 

See besides average rainfall UK also: 
Average Rainfall London 
Average Temperature UK