If you're looking for summer vibes, the best time to travel to Hermosillo is in June, July and August, when the average temperature reaches 38.18 °C, while May, June and April are the 3 sunniest months of the year, with an average of 161.61 hours.
However, if you prefer colder temperatures, make sure you visit Hermosillo during January, December or February to experience an average of 10.78 °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 March, May and January, when the average precipitation in Hermosillo is 4.9 mm, while the months of January, February and March are drier, with an average of 0 mm.