# South Africa weather hazards and flood impacts > Live situation record from CLSTR: https://clstr.news/situations/heavy-rains-and-flood-alerts-trigger-evacuations-and-dam-management-across-south-africa-india-new-ze > Updated: 2026-09-13T17:57:52.000Z. Sources: 46. Developments: 32. In early May 2026, a cut‑off low‑pressure system prompted heightened alerts for the Western Cape and KwaZulu‑Natal, with road‑safety warnings and winter‑readiness plans. The Kouga Dam in the Western Cape rose to 113% capacity, overflowed and forced the evacuation of about 50 residents from low‑lying areas along the Gamtoos River; authorities opened community halls as shelters and warned farmers to move livestock. The Department of Water and Sanitation confirmed the dam remained structurally sound despite inflows exceeding design levels. Severe weather across six provinces from 4 May caused heavy rain, thunderstorms, high winds and even snowfall, killing at least ten people and damaging more than 10,000 informal‑settlement structures. President Cyril Ramaphosa declared a national disaster, enabling emergency funding and coordinated response. The World Bank warned that repeated infrastructure failures – in roads, bridges, drainage, electricity and water supply – could shave up to two percentage points from annual GDP growth, while businesses faced rising backup‑power and logistics costs. Rand Water and the City of Cape Town issued water‑use restrictions as storm‑laden dams suffered increased turbidity, and Eskom’s winter maintenance led to pump shutdowns in Gauteng. Power outages lasting days affected the Garden Route and prompted food‑safety alerts. Flooding destroyed farm‑worker homes in De Doorns, displacing over 2,200 people, and humanitarian groups provided emergency shelter. June brought a cold front with freezing temperatures, snow in the Eastern Cape highlands and damaging wind warnings for the Northern and Western Cape, leading to school closures, road and pass shutdowns, and heightened alerts for high‑sided vehicles. A yellow warning for severe thunderstorms and hail was issued in July, adding to the series of weather‑related disruptions that have persisted throughout the year. In early September, a new cold front triggered multiple high-level warnings from the South African Weather Service. ## Claims - The South African Weather Service issued an Orange Level 6 warning for disruptive rain affecting the Eastern Cape and KwaZulu‑Natal. (disputed by 3 sources) - The South African Weather Service issued an Orange Level 5 warning for disruptive snow affecting the Eastern Cape and KwaZulu‑Natal. (disputed by 3 sources) - The South African Weather Service issued an Orange Level 6 warning for disruptive snow in parts of the Eastern Cape. (disputed by 3 sources) - The weather system is expected to bring snow, heavy rain and strong winds from the evening of 28 July 2026, persisting into Wednesday and clearing by Thursday. (corroborated by 3 sources) - The severe weather could cause flooding of bridges, roads and settlements and damage to property and infrastructure. (corroborated by 3 sources) - City Power reported more than 2,000 electricity outages in Johannesburg due to increased demand from heaters and stoves. (corroborated by 3 sources) - Hazardous driving conditions are expected on mountain passes and high‑altitude routes, especially in the Maloti‑Drakensberg and Lesotho border area. (corroborated by 2 sources) - No fire‑danger warnings were issued for the affected regions. (corroborated by 2 sources) - Deputy government spokesperson William Baloyi urged the public to remain vigilant as weather and road conditions can change rapidly. (corroborated by 2 sources) - A Yellow Level 2 warning for disruptive rain was issued for Mpumalanga. (corroborated by 2 sources) - The Road Traffic Management Corporation urged motorists to reduce speed, increase following distance, avoid unnecessary travel, and carry emergency supplies. (single source) - Most mountain passes in the Eastern Cape have reopened as snowfall subsides, though roads remain wet and slippery. (single source) ## Timeline ### 2026-09-13: South Africa faces severe thunderstorms and disruptive rain warnings South Africa faces severe weather, including a Level 4 disruptive rain warning for the Karoo and severe thunderstorm alerts across the Western Cape, KwaZulu-Natal, and other provinces. 4 sources. https://clstr.news/cluster/south-africa-faces-severe-weather-warnings-for-rain-and-wind ### 2026-09-06: South Africa issues severe thunderstorm and flooding warnings South Africa faces severe thunderstorms, heavy rain, and hail, with Orange Level 6 warnings issued for the North West, Free State, and Northern Cape, posing risks of flooding and infrastructure damage. 5 sources. https://clstr.news/cluster/south-africa-weather-severe-storm-warnings-and-sunny-cape-town ### 2026-09-04: South Africa issues severe weather warnings for storms and flooding South Africa faces severe weather warnings for thunderstorms, flooding, and strong winds across multiple provinces, while Cape Town expects sunny conditions. 7 sources. https://clstr.news/cluster/south-africa-weather-service-issues-warnings-for-severe-storms-and-flooding ### 2026-09-02: South Africa weather: heavy rain and damaging wave warnings South Africa faces unsettled weather including thunderstorms, disruptive rainfall, and damaging wave warnings along the coast, alongside high fire danger in several interior provinces. 2 sources. https://clstr.news/cluster/south-africa-weather-heavy-rain-and-wind-warnings-issued ### 2026-08-31: South Africa weather: severe alerts for flooding and wind South Africa faces severe weather alerts, including potential flooding in the Western Cape and damaging winds in the Northern Cape due to an intense cut-off low system expected in early September. 3 sources. https://clstr.news/cluster/south-africa-weather-severe-alerts-for-flooding-and-wind ### 2026-08-21: South Africa weather alerts: Damaging winds and fire danger The South African Weather Service has issued warnings for damaging winds, waves, and extremely high fire danger across several provinces, including the Eastern Cape. 3 sources. https://clstr.news/cluster/south-africa-weather-alerts-damaging-winds-and-fire-danger ### 2026-08-16: South Africa weather: Fog and frost expected in several provinces The South African Weather Service predicts morning fog and frost in several provinces, including Mpumalanga, the Western Cape, and KwaZulu-Natal. 2 sources. https://clstr.news/cluster/south-africa-weather-fog-and-frost-expected-in-several-provinces ### 2026-08-08: South Africa weather: Snow and freezing temperatures cause power outages and road closures Severe winter weather, including heavy snow and freezing temperatures, is causing power outages in Johannesburg and major road closures across South Africa's Eastern Cape and KwaZulu-Natal. 8 sources. https://clstr.news/cluster/south-africa-weather-warnings-as-snow-closes-mountain-passes ### 2026-08-06: South Africa braces for heavy snow and severe cold in Eastern Cape SAWS issued a level‑2 snow warning for the Eastern Cape, forecasting up to 60 cm of snow and possible road, livestock and flood disruptions, while a cold front brings severe cold, wind and rain nationwide. 2 sources. https://clstr.news/cluster/south-africa-braces-for-heavy-snow-and-severe-cold-in-eastern-cape ### 2026-08-04: South Africa braces for bitter cold front hitting Gauteng and Eastern Cape A cold front will bring bitter cold, heavy rain and strong winds to Gauteng, Eastern Cape and other South African provinces, with low snow chances in Gauteng and possible mountain snowfall in the Eastern Cape. 2 sources. https://clstr.news/cluster/south-africa-braces-for-bitter-cold-front-hitting-gauteng-and-eastern-cape ### 2026-07-31: South Africa Issues Strong Wind and Rain Alerts for KwaZulu-Natal South Africa's weather service issued yellow level‑2 warnings for strong coastal and interior winds in KwaZulu‑Natal, with rain expected across multiple provinces until 2 Aug 2026. 2 sources. https://clstr.news/cluster/south-africa-issues-strong-wind-and-rain-alerts-for-kwazulu-natal ### 2026-07-27: South Africa Braces for Severe Snow, Rain and Wind as Orange‑Level Warnings Issued South Africa’s Eastern Cape and KwaZulu‑Natal face orange‑level rain and snow warnings as a cold front brings heavy precipitation, strong winds and hazardous road conditions, prompting RTMC safety alerts. 4 sources. https://clstr.news/cluster/snowfall-and-severe-cold-hit-south-africas-eastern-cape-free-state-and-lesotho-border ### 2026-07-24: South Africa braces for damaging winds and rain across multiple provinces A Yellow Level 1 wind warning for parts of the Northern and Western Cape warns of sand buildup, vehicle hazards and damage to temporary structures, while most of South Africa sees fine to cool conditions and UV 3 sources. https://clstr.news/cluster/south-africa-braces-for-damaging-winds-and-rain-across-multiple-provinces ### 2026-07-18: South Africa sees morning mist and light winds across its provinces South Africa's forecast calls for morning mist, light winds, fine‑cool weather and high UV‑B levels across its provinces. 2 sources. https://clstr.news/cluster/south-africa-sees-morning-mist-and-light-winds-across-its-provinces ### 2026-07-11: South Africa braces for severe thunderstorms and hail South Africa's weather agency issued a yellow warning for severe thunderstorms, hail and strong winds, expecting localized flooding and cool conditions with isolated showers across most provinces. 2 sources. https://clstr.news/cluster/south-africa-braces-for-severe-thunderstorms-and-hail ### 2026-06-26: South Africa braces for bitter cold, heavy rain and strong winds this weekend South Africa faces a cold front with heavy rain, strong winds and flood warnings in the Western Cape; Adelaide will see cool, cloudy conditions and increasing showers later in the week. 5 sources. https://clstr.news/cluster/south-africa-braces-for-heavy-rain-and-strong-winds-in-the-western-cape ### 2026-06-17: South Africa Issues Yellow Warning for Damaging Winds in Northern Cape South Africa's Weather Service issued a yellow warning for damaging winds in the Northern Cape, affecting high‑sided vehicles, with cool, cloudy conditions and scattered showers forecast nationwide. 2 sources. https://clstr.news/cluster/south-africa-issues-yellow-warning-for-damaging-winds-in-northern-cape ### 2026-06-14: Cold snap spreads across South Africa as rain moves through Adelaide South Africa faces a cold snap with temps at or below 10 °C on 15 June, while Adelaide expects wet, wintry weather and rain into the weekend, with highs around 20 °C dropping to 16 °C. 2 sources. https://clstr.news/cluster/cold-snap-spreads-across-south-africa-as-rain-moves-through-adelaide ### 2026-06-02: Western Cape floods and mudslides force school closures and road shutdowns Severe storms in South Africa's Western and Eastern Cape cause floods, mudslides, road closures and school shutdowns in Eden and Central Karoo. 3 sources. https://clstr.news/cluster/western-cape-floods-and-mudslides-force-school-closures-and-road-shutdowns ### 2026-06-02: South Africa braces for cold front bringing freezing temps, rain and snow A cold front across South Africa brings near‑freezing temps in Johannesburg and heavy rain, flooding and snow in the Western and Eastern Cape, prompting safety warnings. 2 sources. https://clstr.news/cluster/south-africa-braces-for-cold-front-bringing-freezing-temps-rain-and-snow ### 2026-05-20: Floods in South Africa's Western Cape destroy farm workers' homes, displace 2,200 Heavy rains on 12 May 2026 flooded De Doorns, Western Cape, destroying farm workers' homes, displacing over 2,200 people and prompting emergency relief. 2 sources. https://clstr.news/cluster/floods-in-south-africas-western-cape-destroy-farm-workers-homes-displace-2200 ### 2026-05-18: Cape Town limits water use as storms hamper treatment plants Cape Town asks residents to curb water use after storms raise turbidity, cutting output at major treatment plants; boil discoloured tap water. 8 sources. https://clstr.news/cluster/cape-town-limits-water-use-as-storms-hamper-treatment-plants ### 2026-05-18: Western Cape storms cause days‑long power outages and trigger food‑safety alerts Storms in South Africa's Western Cape cause multi‑day outages; officials issue food‑safety guidance as repairs continue. 2 sources. https://clstr.news/cluster/western-cape-storms-cause-dayslong-power-outages-and-trigger-foodsafety-alerts ### 2026-05-16: South Africa warns of water disruptions in Gauteng and Cape Town Rand Water maintenance may dry taps in Gauteng while Cape Town asks residents to cut use after storm‑damaged reservoirs. 2 sources. https://clstr.news/cluster/south-africa-warns-of-water-disruptions-in-gauteng-and-cape-town ### 2026-05-14: Western Cape seeks national disaster status after deadly South African floods Western Cape requests national disaster status after deadly floods that killed 10 and displaced thousands across South Africa. 3 sources. https://clstr.news/cluster/western-cape-seeks-national-disaster-status-after-deadly-south-african-floods ### 2026-05-13: Western Cape Floods Disrupt Major Roads and Close Iconic Parks Western Cape floods cause N1 traffic limits and close Table Mountain and Garden Route parks, hurting transport and tourism. 6 sources. https://clstr.news/cluster/western-cape-floods-disrupt-major-roads-and-close-iconic-parks ### 2026-05-13: Western Cape floods trigger mass evacuations and large‑scale rescues Heavy rains in South Africa's Western Cape cause severe floods, evacuating hundreds and prompting large‑scale rescue and relief operations. 3 sources. https://clstr.news/cluster/western-cape-floods-trigger-mass-evacuations-and-largescale-rescues ### 2026-05-12: South Africa’s infrastructure breakdown emerges as core business risk South Africa’s floods and utility failures are now seen as a systemic business risk, threatening growth, productivity and costing firms billions. 3 sources. https://clstr.news/cluster/south-africas-infrastructure-breakdown-emerges-as-core-business-risk ### 2026-05-11: South Africa declares national disaster after floods kill at least 10 South Africa declares a national disaster after floods across six provinces kill at least 10 and destroy thousands of homes. 5 sources. https://clstr.news/cluster/south-africa-declares-national-disaster-after-floods-kill-at-least-10 ### 2026-05-08: South Africa's Kouga Dam Remains Safe Amid Record Flood Inflows South Africa's Kouga Dam stays safe at 120% capacity; flood outflows within limits and water supply levels rebound. 2 sources. https://clstr.news/cluster/south-africas-kouga-dam-remains-safe-amid-record-flood-inflows ### 2026-05-07: Kouga Dam overflow forces evacuations in South Africa's Western Cape Kouga Dam overflow in Western Cape prompts evacuation of 49 residents, shelters opened and roads closed amid severe flooding. 2 sources. https://clstr.news/cluster/kouga-dam-overflow-forces-evacuations-in-south-africas-western-cape ### 2026-05-04: South Africa warns of severe rain and flooding in Western Cape and KwaZulu-Natal South Africa issued flood and storm warnings for Western Cape and KwaZulu‑Natal as a cut‑off low brings heavy rain. 16 sources. https://clstr.news/cluster/south-africa-warns-of-severe-rain-and-flooding-in-western-cape-and-kwazulu-natal --- Cite as: South Africa weather hazards and flood impacts. CLSTR, https://clstr.news/situations/heavy-rains-and-flood-alerts-trigger-evacuations-and-dam-management-across-south-africa-india-new-ze