Puerto Vallarta weather in September 2025

Expect daytime maximum temperatures of 32°C in Puerto Vallarta in September and very high heat and humidity based on long-term weather averages. There are 6 hours of sunshine per day on average with 17 days with some rainfall and typically 358 mm of rainfall in the month.

  • 32°C maximum daytime temperature in September in Puerto Vallarta32
    32°C max day temperature
  • 6 hours of sunshine per day
  • 17 days with some rainfall in September in Puerto Vallarta17
    17 days with some rainfall
  • 21°C minimum night-time temperature in September in Puerto Vallarta21
    21°C min night temperature
  • 12 hours of daylight per day in September in Puerto Vallarta12
    12 hours of daylight per day
  • Very high heat & humidity in September in Puerto VallartaVH
    Very High heat & humidity
  • 358 mm monthly rainfall in September in Puerto Vallarta358
    358 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Puerto Vallarta11
    11+ (Extreme) UV index
  • 29°C sea temperature in September in Puerto Vallarta29
    29°C sea temperature

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The September weather guide for Mexico (Puerto Vallarta) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Puerto Vallarta in September?

Daytime temperatures usually reach 32°C in Puerto Vallarta in September with very high heat and humidity, falling to 21°C at night.

How sunny is it in Puerto Vallarta in September?

There are normally 6 hours of bright sunshine each day in Puerto Vallarta in September - that's 46% of daylight hours.

How warm is the sea around Puerto Vallarta in September?

The average sea temperature around Puerto Vallarta in September is 29°C.

Does it rain in Puerto Vallarta in September?

There are usually 17 days with some rain in Puerto Vallarta in September and the average monthly rainfall is 358mm.

What is the chance of a hurricane in Puerto Vallarta in September?

On average 1.5 days in September in Puerto Vallarta are likely to be affected by the passage of one or more tropical storms.

Puerto Vallarta September sunrise & sunset times

Browse the sunrise and sunset times for Puerto Vallarta in September 2025. Select a month to view Puerto Vallarta sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:45 19:16
Monday, 15th September 2025 06:48 19:03
Tuesday, 30th September 2025 06:52 18:49

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