Weather SA predicts unusual conditions in autumn and winter

Above-normal rainfall conditions in the north-eastern parts of the country, particularly KwaZulu-Natal, between March and July 2025 are likely to increase water levels during this period, according to Cobus Olivier, a prediction research scientist at the South African Weather Service.

Weather SA predicts unusual conditions in autumn and winter
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“Furthermore, maximum and minimum temperatures are expected to be mostly above normal countrywide during the forecast period and are likely to result in increased demand for cooling, except for the southern coastal areas where below-normal maximum and minimum temperatures are expected,” he added.

Olivier advised the relevant decision-makers to take note of these possible outcomes and communicate with affected businesses and communities accordingly.

“The predicted higher temperatures in most parts of the country, except for the southern coastal areas, are expected to greatly increase the risk of heat exposure, potentially leading to heat stress and other heat-related health problems,” he added.

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Additionally, elevated temperatures could accelerate the growth of foodborne pathogens, raising the risk of foodborne illnesses. The public is advised to maintain good food hygiene, adhere to local health guidelines, and take necessary precautions to manage heat exposure.

The predicted above-normal rainfall for most of the north-eastern parts of the country is likely to cause flash floods, particularly in flood-prone areas and regions with inadequate drainage systems. These conditions could increase the incidence of waterborne infections, water-related injuries and drowning accidents.

“As far as agriculture is concerned, above-normal rainfall over the north-eastern parts of the country during autumn is likely to have a positive impact on crop and livestock production. However, there is an increased risk of waterlogging that can cause crop damage in areas receiving excessive rainfall. The south-western part, which normally receives significant rainfall during early winter, is expected to receive mostly below-normal rainfall during this period,” Olivier said.

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