Puerto Vallarta Weather in September
Jalisco, Mexico
Pick your travel dates to see the odds.
September is nearly as wet as August: 26.4 rain days and about 11.8 inches of rain, with highs of 85.1°F, lows of 75°F and humidity peaking at 89%.
It is the most humid month of the year, and the air feels heavy even on dry mornings.
The sea holds at 89°F.
Storm risk is low but rising, with five storm days recorded for September, the second most of any month, so this is the month to book flexible or refundable arrangements.
Mexican Independence Day on September 16 brings parades, fireworks and a burst of domestic visitors to the Malecón.
Crowds are otherwise thin and prices low, which suits travelers who want a quiet, cheap stay and can tolerate weather disruptions.
Pack rain gear, quick-dry clothes and insect repellent, and buy travel insurance that covers weather.
Frequently asked questions
Is September a good time to visit Puerto Vallarta?
It is wet, humid and storm-prone, though very cheap and quiet.
How much does it rain in Puerto Vallarta in September?
About 26.4 rain days and 11.8 inches on average.
Is there hurricane risk in Puerto Vallarta in September?
Low but rising, with five storm days recorded for September.
What is happening in Puerto Vallarta on September 16?
Mexican Independence Day, with parades and celebrations in town.
Is September the most humid month in Puerto Vallarta?
Yes, humidity averages 89%.
Weather data by Open-Meteo.com (CC BY 4.0) and the NOAA National Hurricane Center. Data updated September 2026. How we calculate.