The El Niño phenomenon may sound like a complex meteorological term, but its consequences can affect homes, farms, and food bills in South Africa. This guide explains what El Niño is and how it might influence temperature, rainfall, water reserves, and food prices.
For many residents of South Africa, El Niño sounds like a scientific term. Nevertheless, it has the capacity to influence simple aspects of life, such as the feeling of heat at home, the level of water in local reservoirs, crop yields, and product costs.
According to forecasts from the World Meteorological Organization (WMO), El Niño has already established itself and is expected to become very strong by the end of 2026. Forecasters suggest that this phenomenon will continue into early 2027, causing changes in global temperature and rainfall patterns.
What is El Niño?
It is necessary to consider the Pacific Ocean as a huge part of the global climate system. Periodically, parts of this ocean warm up more than usual, leading to changes in winds and the movement of air masses across the planet. This change can affect the weather thousands of kilometers away, and this is called El Niño. It is important to understand that this does not mean that all of South Africa will suddenly become dry or that every day will be extremely hot; weather is complex and influenced by other factors. However, El Niño is associated with an increased risk of hotter conditions and changes in precipitation patterns, including dry spells in South Africa. Furthermore, the current El Niño is expected to be particularly strong.
Will South Africa get hotter?
There is a high probability of rising temperatures. The WMO indicates that El Niño increases the risk of extreme heat events. Extreme heat poses a danger not only due to discomfort but also because it can be threatening, especially for the elderly, children, outdoor workers, and those sensitive to heat. High temperatures can make homes, schools, and workplaces unbearably hot. For an average family, this may require greater water consumption for cooling, increased time spent in the shade, and greater reliance on fans or air conditioning.
What about the rains?
This aspect is particularly significant for South Africa. El Niño is often associated with drier conditions in South Africa, although its impact is not absolutely uniform every time. This means that some regions of the country may receive less rainfall than necessary. Rain is important not only for hanging laundry outside; it replenishes reservoirs, feeds rivers, helps farmers grow crops, provides water for livestock, and supports community supplies for homes, businesses, and educational institutions. A lack of rainfall puts pressure on all these systems.
Farmers may feel it first
Imagine the process of planting maize after weeks of field preparation and waiting for rain. If the rain comes late, doesn't come at all, or occurs at an inappropriate time, the harvest can suffer. This is one of the main problems during an El Niño event. Farmers are heavily dependent on rainfall, especially those without sufficient irrigation capabilities. A dry season leads to reduced harvests. For livestock breeders, drought means a shortage of feed and water for animals. The consequences are not limited to the farm: if farmers produce less food, there is less available in the market, which puts pressure on food prices. South Africa faced something similar during a previous major El Niño event, when drought led to agricultural losses across South Africa.
Could your grocery bill be affected?
Theoretically, yes. It is important to remember that El Niño does not guarantee an automatic rise in food prices. Food prices depend on numerous factors, including fuel costs, transportation expenses, electricity, imports, the Rand exchange rate, global prices, and the volume of production by farmers. However, weather is one such factor. If drought damages crops, farmers may have less produce to sell, creating a shortage of certain goods. For households trying to save every cent, even a small increase in the price of staple foods can be significant.
Furthermore, there is the issue of water, which is one of the most serious during a prolonged drought. With low rainfall, reservoirs and rivers receive less water, and hot weather increases evaporation. People also tend to consume more water in hot weather. This creates a difficult situation: water inflow decreases while demand rises. Residents of South Africa who have experienced water restrictions know how quickly drought can become part of daily life, leading to shorter showers, restrictions on garden watering, pool issues, and increased strain on municipalities managing limited supplies.
There is another side to this story
El Niño does not mean that South Africa will experience one long, completely dry summer period. Even during an El Niño event, heavy rains and flooding are possible. This may seem paradoxical: how can the same weather pattern cause both drought and floods? The answer lies in the fact that El Niño alters large-scale weather patterns, but local weather can still vary greatly. One place might experience prolonged periods of insufficient rainfall, followed by a sudden downpour, which can lead to flooding, especially where drainage systems cannot cope.
Each El Niño event is unique, and other weather conditions can alter the intensity of its impact in different parts of South Africa.
What about fires?
Hot and dry conditions also create dangerous conditions for wildfires. When grass, vegetation, and other plants dry out, they become more susceptible to ignition. This threatens housing, farms, wildlife, and infrastructure. South Africa has already faced the consequences of drought and wildfires during past El Niño events.
What should ordinary South Africans do?
There is no need to panic. El Niño is a warning to prepare, not a guarantee of disaster. Families should monitor meteorological warnings, use water sparingly, and take heat warnings seriously. Farmers are advised to use seasonal forecasts when making decisions regarding planting and livestock. Municipalities should prepare for potential pressure on water resources, and health authorities should prepare for periods of extreme heat. Reliable forecasts and early warnings give communities the opportunity to act before extreme weather turns into a crisis. This may be the most important thing to remember. El Niño may begin thousands of kilometers away from South Africa in the Pacific Ocean, but its consequences ultimately reach things that matter to South Africans every day.