When considered in detail, the movement of air masses and their effects provide the basis for a division of the continent into eight climatic regions. In most of southern Africa, rainfall peaks in the austral summer/boreal winter. In the savannahs and grasslands longer grass is replaced by shorter grass as you move away from the equator, with trees scattered in-between. In addition to aridity, the desert climate is characterized by high mean monthly temperatures; the diurnal (daily) temperature range is, however, greater than the annual range of the mean monthly temperature. In summer, moist equatorial air masses originating over the Atlantic Ocean bring annual monsoon rains (Nicholson, 2013). Typical climatic conditions consist of high, seasonally well- distributed rainfall and a small range of temperature except in locations where the seasonal shifting of the trade winds leaves a part of the year relatively drier. OND rainfall across East Africa in 2019. Climates of Africa - "Low" and "High" Africa. In western Africa the period of low sun corresponds to the harmattan season. North of the equator most rain falls from April to September, south of the equator the rainy season is from October to March. Droughts are becoming more widespread across the Sahel and eastern Africa. Finally, the high mountains have climatic zones of their own that vary with altitude. Predicting shifts in rainfall patterns in South Africa is much less certain. First, most of the continent—which extends from 35° S to about 37° N latitude—lies within the tropics. Of these, the least important are the continental polar air masses, which may occasionally bring intense cold to northern Egypt in December and January, and the maritime polar air masses, which are associated with rain-bearing depressions over the northern and southern extremities of the continent during the winter. In a few places—for example, on the coast of Mauritania and Senegal—there is also a little rainfall in the period of low sun. Tropical Savanna - Tropical. tips of Africa. a The mean austral spring and summer (September–February) rainfall (shaded; mm) across southern Africa based on CHIRPS data from 1981 to 2018.b A zoomed in version of the mean spring and summer rainfall for the southeast region of the domain. This is the area of massive uplift over Africa and very high rainfall figures As in the desert and semiarid climatic zones, mean monthly temperatures show less variation than daily temperatures. Toward the coast the climate shows maritime characteristics, and there is a tendency toward winter rainfall. The temporal characteristics of rainfall variability in Africa are examined using departure series for 84 regions of the continent and five larger-scale zones. hourly or sub-hourly, to represent different intensities. We evaluated the combined aspects of anomalous high rainfall and concurrent soil saturation in a RVF forecast model for South Africa, using accurate temporal and spatial records of the 2008–2011 epidemics to derive risk maps (Directorate of Animal Health, Department of Agriculture, Forestry and Fisheries, pers. Their graphical technique indicated no significant rainfall trend except in the northeastern region of Kenya where an increasing annual rainfall tendency was displayed. The Mediterranean coast as well as the southern part of Africa get rainfall during the winter months. South Africa experiences a high degree of sunshine with rainfall about half of the global average, increasing from west to east, and with semi-desert regions in the north-west. In the desert regions of the Sahara, Namib and Kalahari rainfall often drops to under a hundred cm a year. only received major rainfall half of the year and dry season the other half. Other mountains with high rainfall include the Outeniqua Mountain, mountains of the South-western Cape and the Winterberg and Amatola Mountains, in the central parts of the Eastern Cape. This report provides a general overview of the regional climate in southern Africa. Countries in this region comprise of South Africa, Zimbabwe, Zambia, Swaziland, Namibia, Mozambique, Malawi, Lesotho, Botswana, and Angola. Most of Africa is divided into wet and dry seasons. Temperatures are about the same as those in the desert regions. For the multi-region sector average R j, the first step is an arithmetic average of the standardized departures from all I stations within the sector that are available for the season or year in question. Winter rainfall region, rain throughout the year, summer rainfall region. Climate is a long-term weather pattern, the sum of features such as temperature, rainfall, and wind. The rainiest areas are the Lake Victoria basin, the mountains, and the coastal islands, which receive more than 59 inches … With the exception of these, the continent is affected both by a continental tropical air mass to the north and by maritime tropical and maritime equatorial air masses to the south. Marked variations in the rhythm of equatorial climate sometimes occur. The Llanos of Columbia is characterized by mean annual rainfall of 200cm-400cm (near Andes Mountain), mean annual temperature of 22°C, and maximum temperature of 32°C. The performance of six satellite-based and three newly released reanalysis rainfall estimates are evaluated at daily time scale and spatial grid size of 0.25 degrees during the period of 2000 to 2013 over the Upper Blue Nile Basin, Ethiopia, with the view of improving the reliability of precipitation estimates of the wet (June to September) and secondary rainy (March to May) seasons. We used rainfall and temperature records between 1987 and 2016 from 46 weather stations across South Africa to calculate annual rainfall seasonality characteristics using two methods. Here we analyze the relationship between El Ni˜no Southern Oscillation (ENSO) and South Africa austral winter rainfall using a 682 raingauges daily rainfall database documenting the … Oceans and regional land alike monsoon circulation provides a general overview of the climate... And the Lake region of E.Africa 213cm of rain during the 2018 Africa. Percent of agriculture depends on rainfall, and semi-arid climates at the intertropical convergence zone ( ITCZ.. Project, researchers at Delft University of Technology will create high-resolution computer simulations of localized in... The harmattan season of E.Africa: equatorial regions receive rainfall throughout the year receives rainfall more than...., offers, and Tanzania, straddles the equator areas of Ethiopia Somalia... 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