Boundless, 21 Jul. 2015. Retrieved 10 Oct. 2015 from https://www.boundless.com/chemistry/textbooks/boundless-chemistry-textbook/atoms-molecules-and-ions-2/types-of-chemical-bonds-36/ionic-bonds-207-1862/.
Daylight Hours: 11 hours, 21 minutes (-2m 42s) The Sun's altitude in Puerto Montt today. The horizontal line signifies the horizon, the vertical lines show the times of sunrise and sunset. Altitude and heading are displayed in a separate box. The graph defaults to current time.
Clearly, it will be warmer during the day, and cooler at night. The weather is very pleasant from November until May. Sometimes in June, and definitely from July until September, it is quite hot and humid reaching into the high 80's but at night the temperature descends and brings a pleasant sleeping conditions. Puerto Vallarta has two months of intense rain. It's not recommended to visit on August and September, there is rain almost daily. January through March are the coolest months, with typical daytime temperatures in the high 70's to low 80's and evening temperatures in the low 60's.