Climate averages 1991–2020

Puerto Vallarta weather
in September.

A hot, very wet month: the 7th warmest and the 11th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 30.4°C Daytime mean, September
Average low 24.1°C Night-time mean, September
Rainfall 333 mm 28 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Puerto Vallarta · average highYear overview

September is a hot month in Puerto Vallarta: daytime highs average 30.4°C and nights cool to about 24.1°C. By daytime temperature it is the 7th warmest of the 12 months.

Expect about 333 mm of rain on roughly 28 days, which makes September a very wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 17 min on an average September day.

The nearest other city in this atlas is Tepic (105 km away). In September its highs average 27.2°C, 3.3°C cooler than Puerto Vallarta, with 357 mm of rain.

Among the 153 cities listed in Mexico, Puerto Vallarta ranks joint 30th of 153 for the warmest September highs and joint 145th of 153 for the driest September (rainfall, lowest first). The mean September high of those 153 cities is 26.5°C; Puerto Vallarta is 3.9°C warmer than that mean.

From September to October, average highs stay level at 30.5°C, and monthly rainfall falls from 333 mm to 149 mm.

The annual picture

September in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. 1520253035 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 3500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Puerto Vallarta climate table

1991–2020
Monthly climate averages for Puerto Vallarta, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 28.2°C18.4°C18.4°C343.011.011 h
February 28.7°C18.2°C18.2°C242.011.511 h
March 29.6°C18.3°C18.3°C100.912.012 h
April 31.0°C19.4°C19.4°C3.50.612.613 h
May 32.2°C21.5°C21.5°C163.013.113 h
June 31.2°C24.0°C24.0°C20018.813.413 h
July 30.9°C24.4°C24.4°C28528.613.313 h
August 30.9°C24.4°C24.4°C34229.812.813 h
September, selected 30.4°C24.1°C24.1°C33328.312.312 h
October 30.5°C23.5°C23.5°C14919.011.712 h
November 29.9°C21.4°C21.4°C355.311.211 h
December 28.5°C19.5°C19.5°C252.810.911 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

September in nearby cities

Distance from Puerto Vallarta

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Puerto Vallarta) is explained once on the Puerto Vallarta year overview and on the Sources, method and limits page.