Swords Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Swords, Dublin County, Ireland. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Now, let's break down all the details for a clearer picture.
Generally, Swords has a moderate amount of precipitation, averaging 891 mm (35 in) of rainfall annually.
Monthly Rainfall & Rainy Days
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Year-round, Swords has a balanced climate with minimal variation in precipitation. The difference between the wettest month, November, with 89 mm (3.5 in), and the driest month, March, with 61 mm (2.4 in), is minimal.
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 March you can expect a temperature of 11°C (52°F). For more detailed insights into the city's temperatures, visit our Swords Temperature page.
Daily Historical Precipitation
Average daily rainfall for each day of the month based on long-term records. 50-year average (1976-2025)
Average precipitation in August
Explore Swords's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Swords spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Ireland: City Comparison
The map below shows the annual precipitation across Ireland. You can also select the different months in case you are interested in a specific month.
Swords vs World: Rainfall Compared
Swords's average annual precipitation is 891 mm (35 in). Let's compare this to some popular worldwide tourist destinations:
Boston, USA, experiences 1238 mm (49 in) of annual precipitation, including significant snowfall during the winter.
Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.
In Brisbane, Australia, the annual precipitation is 979 mm (39 in), making it wetter than Sydney.
Singapore, situated near the equator, gets 2581 mm (102 in) of rainfall annually, with no distinct dry season and consistent monthly precipitation.
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 Swords's weather, including sunshine hours, humidity levels, and temperature data, visit our Swords Climate page.
Swords Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Swords - and find the best time to visit.
Swords 3-Day Forecast
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full Swords climate overview or explore weather in Ireland.
Popular this month
Where to go in August - average daytime high across popular destinations.
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