Gansbaai Monthly Rainfall & Precipitation
This page shows both the average monthly rainfall and the number of rainy days in Gansbaai, Western Cape, South Africa. These values are calculated using 30 years of data (1990–2020) to ensure accuracy. Let's now guide you through the details for a complete overview.
Generally, Gansbaai receives mid-range precipitation levels, with 614 mm (24 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))
The seasons in Gansbaai, bring significant changes in precipitation. The wettest month, June, receives moderate rainfall, with an average of 88 mm (3.5 in) of precipitation. This rainfall is distributed across 12 rainy days.
In contrast, the driest month, January, experiences much less rainfall, totaling 27 mm (1.1 in) over 6 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.June, the wettest month, has a maximum daytime temperature of 18°C (64°F). During the driest month January you can expect a temperature of 24°C (75°F). For more detailed insights into the city's temperatures, visit our Gansbaai Temperature page.
Daily Historical Precipitation
49-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Explore Gansbaai's Historical Precipitation: 1976-2026
Browse day-by-day precipitation records for Gansbaai 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
Gansbaai vs World: Rainfall Compared
Gansbaai's average annual precipitation is 614 mm (24 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.
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.
Tropical Rainforests: In tropical regions, rainfall is generally abundant year-round. Areas near the equator, like the Amazon rainforest, can receive up to 3000 mm (118 in) of rain annually.
Desert Regions: Deserts such as the Sahara and Arabian deserts typically see less than 250 mm (9.8 in) of rainfall annually. Rainfall tends to be infrequent, but when it does occur, it is often intense.
Temperate Zones: In temperate regions, precipitation tends to be more evenly distributed, though areas closer to the ocean may see more rain in the winter months, and areas further inland experience drier summers.
Polar Regions: Precipitation in polar regions, like Antarctica, is extremely low, often falling as snow. Average annual precipitation in Antarctica is less than 200 mm (7.9 in), with some areas receiving as little as 50 mm (2 in) annually.
- 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 Gansbaai's weather, including sunshine hours, humidity levels, and temperature data, visit our Gansbaai Climate page.
