Thika Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Thika, 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.
On average, Thika receives a reasonable amount of rainfall, with an annual precipitation of 972 mm (38 in). Despite this overall moderate level, the city experiences distinct dry season during certain months throughout the year, as illustrated in the precipitation charts below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
The climate in Thika shows significant variation throughout the year. Expect 192 mm (7.6 in) of precipitation during the wettest month April, distributed over 20 rainy days.
In contrast, September offers drier and sunnier days, with around 25 mm (1 in) of rainfall over 5 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 Thika 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 Thika's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Thika 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
Thika vs World: Rainfall Compared
Thika's average annual precipitation is 972 mm (38 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.
In Brisbane, Australia, the annual precipitation is 979 mm (39 in), making it wetter than Sydney.
Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm (66 in) of annual rainfall, with the heaviest precipitation occurring during September and October.
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.
Precipitation has a very strong role in determining the local climate and ecosystem:
- 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 Thika's weather, including sunshine hours, humidity levels, and temperature data, visit our Thika Climate page.
