Athi River Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Athi River, Kenya. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Now, let's explore all the details to give you a full picture.
Generally, Athi River receives mid-range precipitation levels, with 740 mm (29 in) annually. The distribution varies significantly throughout the year, with a distinct dry season during certain months, as shown in our charts below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Athi River can be quite wet during April, receiving approximately 145 mm (5.7 in) of precipitation over 18 rainy days.
In contrast September, experiences much drier conditions, with 17 mm (0.7 in) of rainfall, spread across 4 rainy days.
April, the wettest month, has a maximum daytime temperature of 26°C (79°F). The city receives 204 hours of sunshine in this period. During the driest month September you can expect a temperature of 26°C (79°F). For more detailed insights into the city's temperatures, visit our Athi River Temperature page.
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in June
Explore Athi River's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Athi River 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
high
moderate
low
almost none
Athi River vs World: Rainfall Compared
Athi River's average annual precipitation is 740 mm (29 in). Let's compare this to some popular worldwide tourist destinations:
Boston, USA, experiences 1238 mm (49 in) of annual precipitation, including significant snowfall during the winter.
In Shanghai, China, the annual average precipitation is 1347 mm (53 in), with a humid subtropical climate.
In Tokyo, Japan, the average annual precipitation is 1528 mm (60 in), with significant summer rains due to typhoon season.
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.
- 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 Athi River's weather, including sunshine hours, humidity levels, and temperature data, visit our Athi River Climate page.
