Being 12 degrees south of equator Lima should be subtropical like Darwin and hence they would share climates.
However Lima’s climate is between mild and warm. Despite its location in the tropics and in a desert, Lima’s proximity to the cool waters of the Pacific Ocean leads to temperatures much cooler than those expected for a tropical desert and can be classified as a mild desert climate. It is neither cold nor hot. Temperatures rarely fall below 14 °C or rise above 29 °C. Two distinct seasons can be identified: summer, from December through April; and winter from June through October. May and November are generally transition months, with a more dramatic warm-to-cool weather transition.
The lack of rain here is due to cold water current sweeping up from antarctica and then the Andes blocking cloud from the east. According to Raul, our guide, Lima apparently doesn’t actually get rain as such, they have drizzle in the mornings as a result of the mist that burns off by mid morning. They also have a sea fog that can roll in during the afternoon, we had one yesterday, it was quite cool watching the buildings along the coast vanish into it. Insert image
As we are here in July we’ve landed in a Peruvian winter; however, for us it isn’t cold. In fact, we keep getting strange looks from the locals as we are quite comfortable in t-shirts and maybe a light jacket in the evening. The locals though are rugged up like Eskimos, some have beanies and gloves on. The though would really get to you is that due to the constant murky cloud there is no blue sky in winter. Not sure could cope with that.
Looks like you are both having a ball. Stay safe .