Rowlands Castle Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Rowlands Castle, West Sussex, United Kingdom. These averages rely on historical data collected over 30 years, from 1990 to 2020. Now, let's break down all the details for a clearer picture.

Generally, Rowlands Castle receives mid-range precipitation levels, with 844 mm (33 in) annually.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm (0.01 in))

While rainfall varies throughout the year, each season offers its own charm. November brings wetter days averaging 92 mm (3.6 in) of precipitation, spread over 16 rainy days.

In contrast, March experiences a drier climate, with about 54 mm (2.1 in) of rainfall spread across 15 rainy days.

November, the wettest month, has a maximum daytime temperature of 12°C (54°F). The city receives 77 hours of sunshine in this period. During the driest month March you can expect a temperature of 11°C (52°F). For more detailed insights into the city's temperatures, visit our Rowlands Castle Temperature page.

Annual Rainfall in the United Kingdom: City Comparison

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.

Annual

Annual

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Legend

heavy rainfall

high

moderate

low

almost none

Heavy annual rainfall has been defined as more than 1000 mm (39 in) precipitation. High: 600 mm (24 in) to 1000 mm (39 in). Moderate: 250 mm (9.8 in) to 600 mm (24 in). Low: less than 250 mm (9.8 in).

Rowlands Castle vs World: Rainfall Compared

Rowlands Castle's average annual precipitation is 844 mm (33 in). Let's compare this to some popular worldwide tourist destinations:

New York City, USA, receives 1276 mm (50 in) of rainfall annually, with precipitation evenly distributed throughout the year.

In Shanghai, China, the annual average precipitation is 1347 mm (53 in), with a humid subtropical climate.

In Brisbane, Australia, the annual precipitation is 979 mm (39 in), making it wetter than Sydney.

Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm (66 in) of annual rainfall, with the heaviest precipitation occurring during September and October.

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.

Rainy Seasons: Many parts of the world have well-defined wet seasons where precipitation is distinctly higher. These are normally accompanied by lush vegetation and temperature patterns.

Dry Seasons: In areas where the climate is either desert or Mediterranean, the amount of precipitation is drastically reduced, leading to a shortage of water and arid conditions.

Interesting weather facts

The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
Approximately 70% of lightning bolts strike land rather than oceans.
A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.

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

Current rainfall in Rowlands Castle

10-Day Forecast