Looked up some numbers on the Yearly averages on temperature and rainfall. It looks like this area of south africa stays pretty mild all year round, it never appears to get truly cold and from December- Febuary it just barely cracks the mildly warm temperature barrier. I dont think we can count on temperature bringing the beasties to the waterhole. However the rainfall drops considerably from April to September and those are probably the months that the wildlife would be most likley to be drawn to the watering hole in large #s.
Month avg.High Avg.Low Avg. precip.
January 82.0Â° F 67.0Â° F 5.10 in
February 81.0Â° F 66.0Â° F 3.80 in
March 79.0Â° F 64.0Â° F 3.40 in
April 75.0Â° F 58.0Â° F 1.80 in
May 71.0Â° F 50.0Â° F 0.80 in
June 65.0Â° F 44.0Â° F 0.30 in
July 66.0Â° F 44.0Â° F 0.30 in
August 70.0Â° F 49.0Â° F 0.30 in
September 76.0Â° F 57.0Â° F 0.80 in
October 78.0Â° F 60.0Â° F 2.60 in
November 79.0Â°F 62.0Â° F 4.30 in
December 81.0Â° F 65.0Â° F 4.40 in