Observed trends show increasing frequency, duration, and intensity of heatwaves across Australia, southern South America, and South Africa. The warming rate over land in mid-latitudes of the Southern Hemisphere has accelerated since 1980, exacerbated by reduced soil moisture and land-atmosphere feedbacks.
[Generated AI] Date: April 14, 2026
The summer rainy season (October–March) brings moisture from the warm Indian Ocean and the Intertropical Convergence Zone (ITCZ) shifting southward. Regions like Zambia, Zimbabwe, and the South African Highveld receive 70–80% of their annual rainfall. Conversely, the west coast (Namibia) remains arid due to the cold Benguela Current. summer southern hemisphere