Addo Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Addo, Eastern Cape, South Africa. 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.
Generally, Addo experiences moderate precipitation patterns, averaging 510 mm (20 in) yearly. However, this average masks significant seasonal variation, including a distinct dry season during certain months that are clearly visible in our monthly breakdown below.
Monthly Precipitation Levels
The average number of days each month with precipitation (> 0.2 mm (0.01 in))
Addo can be quite wet during November, receiving approximately 62 mm (2.4 in) of precipitation over 8 rainy days.
In contrast May, experiences much drier conditions, with 23 mm (0.9 in) of rainfall, spread across 6 rainy days.
November, the wettest month, has a maximum daytime temperature of 26°C (79°F). The city receives 250 hours of sunshine in this period. During the driest month May you can expect a temperature of 25°C (77°F). For more detailed insights into the city's temperatures, visit our Addo 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 July
Explore Addo's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Addo spanning 51 years. Select any month and year to see actual rainfall and snowfall recorded on each day.
Annual Rainfall in South Africa: City Comparison
The map below shows the annual precipitation across South Africa. You can also select the different months in case you are interested in a specific month.
heavy rainfall
high
moderate
low
almost none
Addo vs World: Rainfall Compared
Addo's average annual precipitation is 510 mm (20 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.
In Seoul, South Korea, the average annual precipitation is 1237 mm (49 in), with most rain falling during the summer monsoon season.
Melbourne, Australia, has 690 mm (27 in) of rainfall annually, spread fairly evenly throughout the year.
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.
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 proximity of a location to a large body of water can significantly affect its rainfall patterns:
- Ocean Influence: Coastal regions typically receive more rainfall due to the presence of moisture-laden winds from the ocean. These regions tend to have more humid climates and experience more frequent precipitation, especially in winter.
- Continental Climates: Areas further from the sea, such as inland or continental regions, experience less frequent rainfall and more extreme seasonal variations in precipitation.
- 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 Addo's weather, including sunshine hours, humidity levels, and temperature data, visit our Addo Climate page.
