Climate averages 1991–2020

Heroica Ciudad de Juchitán de Zaragoza weather
in September.

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

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

Average high 30.7°C Daytime mean, September
Average low 24.3°C Night-time mean, September
Rainfall 195 mm 17 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Heroica Ciudad de Juchitán de Zaragoza · average highYear overview

September is a hot month in Heroica Ciudad de Juchitán de Zaragoza: daytime highs average 30.7°C and nights cool to about 24.3°C. By daytime temperature it is the 7th warmest of the 12 months.

Expect about 195 mm of rain on roughly 17 days, which makes September a very wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 14 min on an average September day.

The nearest other city in this atlas is Salina Cruz (34 km away). In September its highs average 30.5°C, about as warm as Heroica Ciudad de Juchitán de Zaragoza, with 206 mm of rain.

Among the 153 cities listed in Mexico, Heroica Ciudad de Juchitán de Zaragoza ranks joint 24th of 153 for the warmest September highs and joint 111th of 153 for the driest September (rainfall, lowest first). The mean September high of those 153 cities is 26.5°C; Heroica Ciudad de Juchitán de Zaragoza is 4.1°C warmer than that mean.

From September to October, average highs fall by 0.6°C to 30.1°C, and monthly rainfall falls from 195 mm to 75 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. 152025303540 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 2000

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

Every month, side by side

Heroica Ciudad de Juchitán de Zaragoza climate table

1991–2020
Monthly climate averages for Heroica Ciudad de Juchitán de Zaragoza, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 28.3°C20.5°C20.5°C3.40.911.311 h
February 29.9°C21.0°C21.0°C3.00.911.612 h
March 31.5°C22.3°C22.3°C4.41.312.012 h
April 33.0°C24.0°C24.0°C6.71.812.512 h
May 33.3°C24.9°C24.9°C519.212.913 h
June 31.4°C24.6°C24.6°C18917.513.113 h
July 32.1°C24.9°C24.9°C10712.713.013 h
August 32.1°C24.8°C24.8°C14615.412.713 h
September, selected 30.7°C24.3°C24.3°C19517.212.212 h
October 30.1°C23.8°C23.8°C758.711.812 h
November 29.2°C22.6°C22.6°C142.311.411 h
December 28.6°C21.3°C21.3°C3.71.011.211 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 Heroica Ciudad de Juchitán de Zaragoza

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 Heroica Ciudad de Juchitán de Zaragoza) is explained once on the Heroica Ciudad de Juchitán de Zaragoza year overview and on the Sources, method and limits page.