Following the feedback from others, a few things seem odd (for Peru):
- I tried it with Lima-Peru and it actually suggested a bad time to visit the city: https://championtraveler.com/dates/best-time-to-visit-lima-p... . The weather on winter is quite humid ( http://www.generaccion.com/noticia/imagenes/grandes/188862-2... )so its not the best time to be there, compared to the summer.
- Also, on the mountains the season to avoid is the rain season, because it really rains (jan-feb).
- Finally, as others pointed, the choice of locations is a bit odd. There are a few smaller towns but for instance Cuzco or Macchu Picchu are not there
