Since Tanzania is below the equator, they are in the opposite season we are.
Winter in Africa is not exactly what we consider cold. The highs will be in the mid-70s and the lows in the 50s. We may see some cooler weather at Ngorongoro Crater, hence some of the warmer items in our packing list.
We’ll be coming at the end of the rainy season, so there is a slight chance for rain and hopefully not as much dust as during the drier seasons.