what are the seasons like for Peru below the equator?
Peru as many countries in between the tropics doesn’t have the 4 distinctive seasons: Winter, Spring, Summer or Fall.
Instead you might say that there are 2 distinctive seasons (December-March) & (June-September) and in-between them a short transition period thet we call Mid Season (media estacion). Now depending in which geographic region you live: Coast, Mountain or Jungle, you call it differently:
COAST: Summer (Dec-Mar) Winter (Jun-Sep)
MOUNTAIN: Rainy (Dec-Mar) Dry (Jun-Sep)
JUNGLE: Flood (Dec-Mar) Dry (Jun-Sep)
As you can see, the best weather in the Jungle and mountain is during our winter but it would be wrong to call it summer so the correct term would be "Dry Season".
Of course we have Autum seasons and Spring sales in shopping centers, but it doesn’t apply to the weather. It’s used as a cronological terminology.