The Department of Meteorological Service-DMS has reviewed the state of the global climate systems and analysed the rainfall prospects for the period October 2017 to March 2018.
The 2017/18 season will generally receive normal amounts of rainfall, with most parts of the country expected to be normal to moderately dry during the start of the season.
By mid-season, rainfall amounts are expected to improve over the southeast, while normal rains are expected over the rest of the country with the likelihood of below normal amounts. The last part of the rainy season is expected to be largely normal with the likelihood of above normal (moderate to very wet) over most parts of the country.
Overall, rainfall will get off to a slow start but will steadily increase as the season progresses, while normal to above normal rains are expected over Botswana for the January to March 2018 period.
At a glance
October, November and December 2017 most of the country is expected to receive generally normal to below normal (moderately dry) rains.
November, December 2017 and January 2018 the Southeast, Kgatleng, Kweneng and Southern parts of Botswana are expected to receive largely normal rainfall with a tendency to above normal. The northern, central and western parts, (Ngamiland, Chobe, Gantsi, Central and Kgalagadi districts) will receive normal to below normal rains.
December 2017 and January, February 2018 the western and northern parts of Botswana (Ghanzi, Kgalagadi, Ngamiland and Chobe) are expected to receive above normal to normal rainfall. The eastern parts (Northeast, Central, Southeast, Southern, Kweneng and Kgatleng districts) are expected to receive normal, with the likelihood of above normal rains.
January, February and March 2017 above normal to normal rains are anticipated over the north and west (Chobe, Ngamiland, Ghanzi and Kgalagadi). Rainfall is expected to be largely normal to above normal (moderate to very wet over the remaining areas.