Puerto Vallarta
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Puerto Vallarta Weather in September

With daytime temperatures of 29°C (84°F) and nighttime lows of 23°C (73°F), September in Puerto Vallarta brings high temperatures during the day. It is also the wettest month of the year, so pack an umbrella.

Rainfall in Puerto Vallarta in September

As part of the rainy season, Puerto Vallarta sees around 17 days of rain in September, with an average of 357 mm (14 in). With high rainfall totals spread across the month, individual showers can be very heavy. Waterproof gear is strongly recommended.

Temperature in Puerto Vallarta in September

Temperatures in Puerto Vallarta in September top out at 29°C (84°F) and drop to 23°C (73°F) overnight. Conditions stay fairly consistent through the month, making it easier to plan what to wear. With overnight lows of 23°C (73°F), evenings stay pleasantly warm.

Average water temperature in September

With water at 30°C (86°F), conditions are warm and calm. Perfect for those who like tropical water temperatures, though it won't cool you down much.

If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Puerto Vallarta. Our weather planner can help you explore destinations with more pleasant weather conditions.

Puerto Vallarta Temperature in September

Min Temperature
23°C (73°F)
Max Temperature
29°C (84°F)
Water Temperature
30°C (86°F)
Chance of Rain
58%
Precipitation
357 mm (14 in)
Rainy days
17 days
Humidity
70%

Puerto Vallarta Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Puerto Vallarta - and find the best time to visit.

Daily Historical Temperatures

49-year average (1976-2025)

Based on our historical records, temperatures in Puerto Vallarta typically stay consistent throughout September, with daily highs averaging around 29°C (84°F). Nights are warm, with lows around 24°C (75°F).

Average temperatures in September

Historical weather records for Puerto Vallarta in September

Browse day-by-day weather records for Puerto Vallarta spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Puerto Vallarta historical weather extremes in September

Based on 40 years of weather observations in Puerto Vallarta between 1986 and 2026, these are the recorded extremes.

  • The warmest day in September was on September 15, 2005, with a maximum of 36°C (97°F).
  • The lowest daytime temperature in September was 25°C (77°F), recorded on September 8, 2021.
  • The coldest night in September in Puerto Vallarta was on September 3, 2019, with a minimum of 17°C (63°F).

Best Places in Mexico in September

Find out more about the weather in Mexico and which places have the best travel conditions in this month. See all of Mexico in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Puerto Vallarta in September

Warm weather calls for comfortable, breathable clothing in September. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. With water temperatures around 30°C (86°F), swimming conditions are excellent. Pack your swimsuit, goggles, and maybe some water shoes.

What To Do in Puerto Vallarta in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Cycling
    7/10
  • Walking
    7/10
  • Camping
    6/10
  • Outdoor sports
    7/10

Puerto Vallarta 3-Day Forecast

More climate data for Puerto Vallarta

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.