Glencar Rainfall & Precipitation: Monthly Averages and Year-Round Insights
This page shows both the average monthly rainfall and the number of rainy days in Glencar, Kerry, Ireland. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Let's now guide you through the details for a complete overview.
Glencar has a notably wet climate with abundant precipitation, recording 1460 mm of rainfall per year.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm)
The wettest period in Glencar occurs in December, which receives around 147 mm of precipitation. During the driest month, September, Glencar experiences high rainfall, totaling approximately 105 mm. The consistent precipitation levels throughout the year contribute to a relatively stable climate.
December, the wettest month, has a maximum daytime temperature of 10°C. The city receives 40 hours of sunshine in this period. During the driest month September you can expect a temperature of 18°C. For more detailed insights into the city’s temperatures, visit our Glencar Temperature page.
Annual Precipitation in Ireland
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.





Amsterdam Precipitation Compared World Wide
Glencar’s average annual precipitation is 1460 mm. Let’s compare this to some popular worldwide tourist destinations:
The climate in San Francisco, USA, is influenced by coastal weather, with 469 mm of rainfall mostly during the winter months.
In Shanghai, China, the annual average precipitation is 1347 mm, with a humid subtropical climate.
Perth, Australia, receives 565 mm of rainfall annually, mostly during the winter months.
Kuala Lumpur, Malaysia, receives 2529 mm of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.
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.
Sea vs. Land Precipitation
The proximity of a location to a large body of water can significantly affect its rainfall patterns:
- Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
- Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.
For more detailed information about Glencar’s weather, including sunshine hours, humidity levels, and temperature data, visit our Glencar Climate page.