The climate differs a lot in different parts of Peru. The yearly average temperature in Independencia is 6°C43°F compared to Iquitos where it is 26°C79°F.
One of the best areas for running, temperature-wise, should be around Huánuco. The temperature there seldom gets below 5°C40°F or over 20°C70°F. On the negative side, Huánuco gets a lot of rainfall.
More detailed information about the weather in Peru can be found on the page for each city.
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