Kisumu Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Kisumu, Kenya. 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.
Kisumu experiences significant rainfall throughout the year, averaging 1907 mm (75 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, April receives substantial rainfall, averaging 304 mm (12 in) of precipitation, recorded across 21 rainy days.
In contrast, the driest month, February brings less rainfall, with 90 mm (3.5 in) over 13 rainy days.
April, the wettest month, has a maximum daytime temperature of 27°C (81°F). During the driest month February you can expect a temperature of 30°C (86°F). For more detailed insights into the city's temperatures, visit our Kisumu Temperature page.
Explore Kisumu's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Kisumu spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Kenya: City Comparison
The map below shows the annual precipitation across Kenya. You can also select the different months in case you are interested in a specific month.
heavy rainfall
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Kisumu vs World: Rainfall Compared
Kisumu's average annual precipitation is 1907 mm (75 in). Let's compare this to some popular worldwide tourist destinations:
New York City, USA, receives 1276 mm (50 in) of rainfall annually, with precipitation evenly distributed throughout the year.
Osaka, Japan, experiences 1507 mm (59 in) of rainfall annually, spread across the year with wetter summers.
Perth, Australia, receives 565 mm (22 in) of rainfall annually, mostly during the winter months.
Kuala Lumpur, Malaysia, receives 2529 mm (100 in) of annual rainfall, characteristic of its equatorial tropical rainforest climate, with consistent rainfall throughout the year and peak months during March and November.
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.
- "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 Kisumu's weather, including sunshine hours, humidity levels, and temperature data, visit our Kisumu Climate page.
