Stellenbosch Rainfall & Precipitation: Monthly Averages and Year-Round Insights

This page shows the average amount of rainfall per month in Stellenbosch. The numbers are calculated over a 30-year period to provide a reliable average. Now, let’s break down all the details for a clearer picture.

Generally, Stellenbosch experiences moderate precipitation patterns, averaging 790 mm yearly.

Monthly Precipitation Levels

The average number of days each month with precipitation (> 0.2 mm)

The seasons in Stellenbosch, bring significant changes in precipitation. The wettest month, June, receives high rainfall, with an average of 141 mm of precipitation.

This rainfall is distributed across 12 rainy days. In contrast, the driest month, February, experiences much less rainfall, totaling 23 mm over 4 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.

June, the city’s wettest month, has a maximum daytime temperature of 18°C. During the driest month February you can expect a temperature of 28°C. For more detailed insights into the city’s temperatures, visit our Stellenbosch Temperature page.

Annual Precipitation in South Africa

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.

Amsterdam Precipitation Compared World Wide

Stellenbosch’s average annual precipitation is 790 mm. Let’s compare this to some popular worldwide tourist destinations:

In Toronto, Canada, annual precipitation averages [964 mm], with snowy winters and rainy summers.

Meanwhile, Buenos Aires, Argentina, enjoys a humid subtropical climate with 1000 mm of annual rainfall, mostly in the summer.

In Tokyo, Japan, the average annual precipitation is 1528 mm, with significant summer rains due to typhoon season.

Bangkok, Thailand, experiences a tropical monsoon climate with 1668 mm of annual rainfall, with the heaviest precipitation occurring during September and October.

How is Precipitation Measured?

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.

Global Warming and Precipitation

Climate change is affecting precipitation patterns worldwide, including Stellenbosch:

• 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.

For more detailed information about Stellenbosch’s weather, including sunshine hours, humidity levels, and temperature data, visit our Stellenbosch Climate page.