So there’s some “incorrect” assumptions you have made about the North American summer, and weather in Africa. In the North American summer, only North Africa experiences summer with you guys. The rest of the continent is blanketed in rains (West, Central and East Africa) or are in outright winter (Southern Africa). So our temperatures do come down in your winter. Your coldest months are our hottest months for most of the continent (except for North Africa). So saying the developed parts of Africa
For those of us that live in the West African tropics, we just settle on how many bites we can tolerate per night lol. Some people apply agricultural pesticides (active ingredient Bifenthrin) down their waste water pipes once a month to ameliorate.