Howth Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Howth, Ireland. This average is based on long-term data collected between 1990 and 2020. Let's explore the details to provide you with a complete overview.

Generally, Howth has a moderate amount of precipitation, averaging 967 mm (38 in) of rainfall annually.

Monthly Precipitation Levels

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

Precipitation levels in Howth remain relatively steady throughout the year. November has the most rain, with 105 mm (4.1 in) over 16 days. In May, this drops slightly to 65 mm (2.6 in), making the city's climate fairly predictable.

November, the wettest month, has a maximum daytime temperature of 12°C (54°F). The city receives 71 hours of sunshine in this period. During the driest month May you can expect a temperature of 14°C (57°F). For more detailed insights into the city's temperatures, visit our Howth Temperature page.

Howth's average annual precipitation is 967 mm (38 in). Let's compare this to some popular worldwide tourist destinations:

The city of Rome, Italy, has an average annual precipitation of 832 mm (33 in), spread fairly evenly throughout the year.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm (39 in) of annual rainfall, mostly in the summer.

Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.

Kuala Lumpur, Malaysia, receives 2529 mm (100 in) of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.

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.

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