Antiguo Cuscatlán Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Antiguo Cuscatlán, El Salvador. The numbers reflect climate data gathered over a 30-year period, from 1990 to 2020. Now, let's explore all the details to give you a full picture.
Antiguo Cuscatlán is known for its substantial rainfall, with annual precipitation reaching 1661 mm (65 in). While the overall climate is wet, there are notable seasonal patterns that create interesting contrasts, as demonstrated in our graph below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Significant seasonal changes in precipitation occur throughout the year. During the wettest month, September receives substantial rainfall, averaging 327 mm (13 in) of precipitation, recorded across 29 rainy days.
In contrast, the driest month, January brings less rainfall, with 3.8 mm (0.1 in) over 4 rainy days.
September, the wettest month, has a maximum daytime temperature of 31°C (88°F). The city receives 181 hours of sunshine in this period. During the driest month January you can expect a temperature of 32°C (90°F). For more detailed insights into the city's temperatures, visit our Antiguo Cuscatlán Temperature page.
Daily Historical Precipitation
41-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Explore Antiguo Cuscatlán's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Antiguo Cuscatlán 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.
heavy rainfall
high
moderate
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Antiguo Cuscatlán vs World: Rainfall Compared
Antiguo Cuscatlán's average annual precipitation is 1661 mm (65 in). Let's compare this to some popular worldwide tourist destinations:
Seville, Spain, experiences 541 mm (21 in) of rainfall annually, with wet winters and dry summers typical of southern Spain.
In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.
Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.
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 Antiguo Cuscatlán:
- 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 Antiguo Cuscatlán's weather, including sunshine hours, humidity levels, and temperature data, visit our Antiguo Cuscatlán Climate page.
