Mwanza has a hot weather year around but this place can be visited in the months of April to July when the temperature is moderate.
Summer: Summer months in Mwanza are from January to April when the temperature is around 32 degree Celsius. March is the hottest month with 36 degree Celsius. This time of the year is a lowseason to visit Mwanza.
Winter: Winters are generally not there in Mwanza but August to November are the months in which this place can be visited as the temperature is around 28 degree Celsius. October is the coldest month with 26 degree Celsius. This time of the year is a good season to visit Mwanza.
So, the best time to visit Mwanza is between the months of August to November.