Western Cape Experiences Historic Rainfall in July

July 2021 will be etched in the annals of South African weather history, as the Western Cape experienced an unprecedented deluge, resulting in the highest rainfall totals recorded for the month since records began. The SA Weather Service (SAWS) has provided a comprehensive analysis of this extraordinary weather event, drawing data from various stations to sketch a picture of the overwhelming precipitation that enveloped the region.

The focal point of SAWS's findings is the staggering 317.6mm rainfall total that fell on the Cape Town City (Oranjezicht) station, which is more than double the typical long-term July average of 128mm. The magnitude of this figure becomes even more pronounced when compared to the mere 81.8mm recorded in the previous July, showcasing the stark contrast in weather patterns year-on-year.

Similarly, Cape Town International Airport's weather station, dating back to July 1956, experienced its wettest July ever, tripling its monthly average. This serves as a testament to the continual cold fronts that swept the region during the month. Other key locations within the Cape Town weather office's network further eloqued the month's heavy rains. Noticeably, the Newlands station within the Kirstenbosch National Botanical Gardens witnessed over 500mm of rain. This set a new record for the wettest month since this station's records commenced in 1999.

Stations in Franschhoek, Kenilworth, and Villiersdorp also crushed historical records for July rainfall, outstripping even the severe September storm totals of 2023. The Cape Winelands area, including Paarl, Worcester, and Jonkershoek, followed suit with impressive statistics, defying long-term monthly records.

The SAWS emphasized the critical role it plays in enabling communities to adapt and prepare for such extreme weather variations. Indeed, the province was not spared from the consequences of the deluge, as the weather caused substantial damage. Strong winds tore roofing materials off buildings and minor hail disrupted Stellenbosch's Helshoogte Pass as early as July 7. Temperatures plummeted while snow lavishly coated the mountain ranges of the Western Cape, contributing to the wintry scenes.

The July rains are a dramatic reminder of the ever-changing climate dynamics and the importance of weather-related preparedness and resilience. As the region undertakes the daunting task of assessing the totality of the impact and mending the damage, this climatic episode will certainly not fade from memory.