The Mumbles Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in The Mumbles, Glamorgan, United Kingdom. This average is based on long-term data collected between 1990 and 2020. Now, let's break down all the details for a clearer picture.

The Mumbles has a relatively rainy climate with high precipitation levels, averaging 1344 mm (53 in) of rainfall annually.

Monthly Precipitation Levels

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

The Mumbles experiences moderate seasonal variation in rainfall, with monthly averages ranging from 150 mm (5.9 in) in December, the wettest month, and 81 mm (3.2 in) in April, the driest month.

December, the wettest month, has a maximum daytime temperature of 10°C (50°F). The city receives 49 hours of sunshine in this period. During the driest month April you can expect a temperature of 13°C (55°F). For more detailed insights into the city's temperatures, visit our The Mumbles Temperature page.

The Mumbles's average annual precipitation is 1344 mm (53 in). Let's compare this to some popular worldwide tourist destinations:

In Lisbon, Portugal, the average annual precipitation is 774 mm (30 in), characterized by wet winters and dry summers typical of the Mediterranean climate.

In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.

Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.

Ho Chi Minh City, Vietnam, receives 1955 mm (77 in) of annual rainfall, with a pronounced wet season from May to November, typical of its tropical monsoon climate.

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.

• 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 The Mumbles's weather, including sunshine hours, humidity levels, and temperature data, visit our The Mumbles Climate page.