Aja Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Aja, Nigeria. The figures are based on a 30-year period (1990–2020) to provide a reliable average. Let's now guide you through the details for a complete overview.
Aja has a relatively rainy climate with high precipitation levels, averaging 1833 mm (72 in) of rainfall annually. Despite the high annual total, it does experience a distinct rainy season during certain months. Examine our detailed charts below to understand these seasonal patterns.
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, June receives substantial rainfall, averaging 324 mm (13 in) of precipitation, recorded across 16 rainy days.
In contrast, the driest month, January brings less rainfall, with 38 mm (1.5 in) over 2 rainy days.
June, the wettest month, has a maximum daytime temperature of 29°C (84°F). The city receives 115 hours of sunshine in this period. During the driest month January you can expect a temperature of 31°C (88°F). For more detailed insights into the city's temperatures, visit our Aja Temperature page.
Explore Aja's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Aja spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in Nigeria: City Comparison
The map below shows the annual precipitation across Nigeria. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Aja vs World: Rainfall Compared
Aja's average annual precipitation is 1833 mm (72 in). Let's compare this to some popular worldwide tourist destinations:
In Toronto, Canada, annual precipitation averages 964 mm (38 in), with snowy winters and rainy summers.
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.
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.
Climate change is affecting precipitation patterns worldwide, including Aja:
- 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 Aja's weather, including sunshine hours, humidity levels, and temperature data, visit our Aja Climate page.
