Gatwick Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Gatwick. The numbers are calculated over a 30-year period to provide a reliable average. Let’s explore the details in depth to provide you with a complete overview.

Generally, Gatwick receives mid-range precipitation levels, with 775 mm annually.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

Despite minor fluctuations, Gatwick enjoys fairly consistent precipitation throughout the year. In November, you can expect around 74 mm of precipitation, while in March, Gatwick receives about 51 mm.

November, the wettest month, has a maximum daytime temperature of 12°C. During the driest month March you can expect a temperature of 11°C. For more detailed insights into the city’s temperatures, visit our Gatwick Temperature page.

Annual Precipitation in the United Kingdom

The map below shows the annual precipitation across the United Kingdom. You can also select the different months in case you are interested in a specific month.

Amsterdam Precipitation Compared World Wide

Gatwick’s average annual precipitation is 775 mm. Let’s compare this to some popular worldwide tourist destinations:

Chicago, USA, sees an annual precipitation of 1062 mm, with rain and snow contributing to its humid climate.

In Seoul, South Korea, the average annual precipitation is 1237 mm, with most rain falling during the summer monsoon season.

In Tokyo, Japan, the average annual precipitation is 1528 mm, with significant summer rains due to typhoon season.

Mumbai, India, experiences a tropical monsoon climate with 1860 mm of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.

How is Precipitation Measured?

Precipitation amounts are measured using specific gauges installed at weather stations, collecting both rain and snow and any other type of precipitation. Rainfall is measured directly in millimeters, while that from snow and ice is obtained by melting it. Automated systems often incorporate heaters to make this easier.

Information from these stations is transmitted via Wi-Fi, satellite, GPS, or telephone connections to central monitoring networks. This information is immediately updated and integrated into weather models and forecasts.

Global Warming and Precipitation

Climate change is affecting precipitation patterns worldwide, including Gatwick:

• Changing Rainfall Patterns: Global warming causes drastic changes in the patterns of rainfall. Some areas have been experiencing increased frequency and intensity of rainfall, while other areas experience longer dry spells or even droughts.
• Local Impacts: Many regions are experiencing heavier rainfall in the winter months and drier, hotter summers. This affects agriculture, water resources, and ecosystems.

For more detailed information about Gatwick’s weather, including sunshine hours, humidity levels, and temperature data, visit our Gatwick Climate page.