Achill Sound Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Achill Sound, Mayo, Ireland. Long-term data from 1990 to 2020 was used to calculate these averages. Now, let's break down all the details for a clearer picture.

Achill Sound experiences significant rainfall throughout the year, averaging 1446 mm (57 in) of precipitation 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. December brings wetter days averaging 154 mm (6.1 in) of precipitation, spread over 24 rainy days.

In contrast, May experiences a drier climate, with about 92 mm (3.6 in) of rainfall spread across 19 rainy days.

December, the wettest month, has a maximum daytime temperature of 10°C (50°F). The city receives 40 hours of sunshine in this period. During the driest month May you can expect a temperature of 15°C (59°F). For more detailed insights into the city's temperatures, visit our Achill Sound Temperature page.

Achill Sound's average annual precipitation is 1446 mm (57 in). Let's compare this to some popular worldwide tourist destinations:

In Toronto, Canada, annual precipitation averages 964 mm (38 in), with snowy winters and rainy summers.

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.

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

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.

Climate change is affecting precipitation patterns worldwide, including Achill Sound:

• 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.

• "Ginger" was the longest-lasting Atlantic tropical storm, which spun around the open ocean for 28 days in 1971.
• The world's largest snowflake was recorded in the Guinness Book of Records, at 38 cm (15 inches) wide and 20 cm (7.9 inches) thick. The snowflake fell at Fort Keogh, Montana, USA, on 28 January 1887.
• The greatest snowfall recorded was on Mt. Rainier, Washington State, USA, over 31.5 meters (103 feet) fell during the winter of 1972.

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