If you're looking for summer vibes, the best time to travel to Leticia is in September, December and January, when the average temperature reaches 34.16 °C, while September, August and October are the 3 sunniest months of the year, with an average of 26.78 hours.
However, if you prefer colder temperatures, make sure you visit Leticia during June, August or January to experience an average of 20.13 °C.
For those who don't care too much about temperatures, but want to avoid getting wet in the rain, it's important to avoid travelling during June, July and August, when the average precipitation in Leticia is 7.5 mm, while the months of January, February and March are drier, with an average of 0 mm.