Kalasan Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Kalasan, Yogyakarta Province, Indonesia. This average is based on long-term data collected between 1990 and 2020. Now, let's explore all the details to give you a full picture.

Kalasan experiences significant rainfall throughout the year, averaging 2695 mm (106 in) of precipitation annually. However, this abundant rainfall is not evenly distributed, with a distinct 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))

Significant seasonal changes in precipitation occur throughout the year. During the wettest month, February receives substantial rainfall, averaging 441 mm (17 in) of precipitation, recorded across 18 rainy days.

In contrast, the driest month, August brings less rainfall, with 29 mm (1.1 in) over 4 rainy days.

February, the wettest month, has a maximum daytime temperature of 31°C (88°F). During the driest month August you can expect a temperature of 30°C (86°F). For more detailed insights into the city's temperatures, visit our Kalasan Temperature page.

Annual Rainfall in Indonesia: City Comparison

The map below shows the annual precipitation across Indonesia. You can also select the different months in case you are interested in a specific month.

Kalasan vs World: Rainfall Compared

Kalasan's average annual precipitation is 2695 mm (106 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 Shanghai, China, the annual average precipitation is 1347 mm (53 in), with a humid subtropical climate.

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

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.

Climate change is affecting precipitation patterns worldwide, including Kalasan:

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