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Kalupahana Monthly Rainfall & Precipitation

This page shows both the average monthly rainfall and the number of rainy days in Kalupahana, Badulla District, Sri Lanka. This average is based on long-term data collected between 1990 and 2020. Let's now guide you through the details for a complete overview.

Kalupahana has a notably wet climate with abundant precipitation, recording 2421 mm (95 in) of rainfall per year. It does, however, have a distinct rainy season during certain months. Have a look at our detailed charts below to see how precipitation varies throughout the year.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm (0.01 in))

Kalupahana can be quite wet during November, receiving approximately 390 mm (15 in) of precipitation over 16 rainy days.

In contrast July, experiences much drier conditions, with 118 mm (4.6 in) of rainfall, spread across 13 rainy days.

November, the wettest month, has a maximum daytime temperature of 27°C (81°F). The city receives 125 hours of sunshine in this period. During the driest month July you can expect a temperature of 28°C (82°F). For more detailed insights into the city's temperatures, visit our Kalupahana Temperature page.

Daily Historical Precipitation

42-year average (1976-2025)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in July

Explore Kalupahana's Historical Precipitation: 1976-2026

Browse day-by-day precipitation records for Kalupahana spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.

Annual Rainfall in Sri Lanka: City Comparison

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

Annual
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Legend heavy rainfall high moderate low almost none
Heavy annual rainfall has been defined as more than 1000 mm (39 in) precipitation. High: 600 mm (24 in) to 1000 mm (39 in). Moderate: 250 mm (9.8 in) to 600 mm (24 in). Low: less than 250 mm (9.8 in).

Kalupahana vs World: Rainfall Compared

Kalupahana's average annual precipitation is 2421 mm (95 in). Let's compare this to some popular worldwide tourist destinations:

In Barcelona, Spain, the average annual precipitation is 644 mm (25 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.

In Brisbane, Australia, the annual precipitation is 979 mm (39 in), making it wetter than Sydney.

Mumbai, India, experiences a tropical monsoon climate with 1860 mm (73 in) of annual rainfall, with the majority of precipitation happening during the monsoon season from June to September.

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.

  • Rainy Seasons: Many parts of the world have well-defined wet seasons where precipitation is distinctly higher. These are normally accompanied by lush vegetation and temperature patterns.
  • Dry Seasons: In areas where the climate is either desert or Mediterranean, the amount of precipitation is drastically reduced, leading to a shortage of water and arid conditions.
  • Interesting weather facts

    • The U.S. has a significant number of thunderstorms every year, with over 14.6 million taking place across the world annually.
    • Approximately 70% of lightning bolts strike land rather than oceans.
    • A storm named John was the longest-lasting Pacific tropical storm, continuing for 31 days. As it crossed the dateline twice, it changed status from a hurricane to a typhoon and back to a hurricane.

    For more detailed information about Kalupahana's weather, including sunshine hours, humidity levels, and temperature data, visit our Kalupahana Climate page.


    Current rainfall in Kalupahana

    More climate data for Kalupahana