Concepción de Ataco Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Concepción de Ataco, El Salvador. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Let's explore the details to provide you with a complete overview.
Concepción de Ataco experiences significant rainfall throughout the year, averaging 1877 mm (74 in) of precipitation annually. However, this abundant rainfall is not evenly distributed, with a distinct dry and rainy season during certain months. You can clearly see this in our monthly precipitation graphs below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The climate in Concepción de Ataco shows significant variation throughout the year. Expect 384 mm (15 in) of precipitation during the wettest month September, distributed over 28 rainy days.
In contrast, January offers drier and sunnier days, with around 4.6 mm (0.2 in) of rainfall over 4 rainy days.
September, the wettest month, has a maximum daytime temperature of 29°C (84°F). The city receives 202 hours of sunshine in this period. During the driest month January you can expect a temperature of 31°C (88°F). For more detailed insights into the city's temperatures, visit our Concepción de Ataco Temperature page.
Explore Concepción de Ataco's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Concepción de Ataco spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in El Salvador: City Comparison
The map below shows the annual precipitation across El Salvador. You can also select the different months in case you are interested in a specific month.
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Concepción de Ataco vs World: Rainfall Compared
Concepción de Ataco's average annual precipitation is 1877 mm (74 in). Let's compare this to some popular worldwide tourist destinations:
In Barcelona, Spain, the average annual precipitation is 620 mm (24 in), evenly distributed across the year with no extreme wet or dry seasons.
Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.
Adelaide, Australia, enjoys 511 mm (20 in) of annual precipitation, with dry summers and wet winters.
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.
Climate change is affecting precipitation patterns worldwide, including Concepción de Ataco:
- 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 Concepción de Ataco's weather, including sunshine hours, humidity levels, and temperature data, visit our Concepción de Ataco Climate page.
