Climate averages 1991–2020

Nogales weather
in September.

A hot, moderately wet month: the 4th warmest and the 10th driest of the year.

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

Average high 30.2°C Daytime mean, September
Average low 17.3°C Night-time mean, September
Rainfall 49 mm 8 days with ≥1 mm
Daylight 12 h Sunrise to sunset, per day
Every month in Nogales · average highYear overview

September is a hot month in Nogales: daytime highs average 30.2°C and nights cool to about 17.3°C. By daytime temperature it is the 4th warmest of the 12 months.

Expect about 49 mm of rain on roughly 8 days, which makes September a moderately wet month (the 10th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 23 min on an average September day.

The nearest other city in this atlas is Tucson (102 km away). In September its highs average 34.1°C, 4.0°C warmer than Nogales, with 25 mm of rain.

Among the 153 cities listed in Mexico, Nogales ranks joint 34th of 153 for the warmest September highs and 11th of 153 for the driest September (rainfall, lowest first). The mean September high of those 153 cities is 26.5°C; Nogales is 3.6°C warmer than that mean.

From September to October, average highs fall by 3.8°C to 26.4°C, and monthly rainfall falls from 49 mm to 22 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. 0510152025303540 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 1000

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

Every month, side by side

Nogales climate table

1991–2020
Monthly climate averages for Nogales, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 16.3°C2.1°C2.1°C353.910.410 h
February 17.3°C3.1°C3.1°C374.511.111 h
March 20.7°C5.5°C5.5°C243.412.012 h
April 24.6°C8.6°C8.6°C7.61.612.913 h
May 29.3°C13.0°C13.0°C4.11.113.714 h
June 34.1°C18.5°C18.5°C9.52.414.114 h
July 32.6°C20.4°C20.4°C9415.114.014 h
August 31.4°C19.5°C19.5°C9216.413.313 h
September, selected 30.2°C17.3°C17.3°C497.712.412 h
October 26.4°C11.9°C11.9°C223.011.411 h
November 20.9°C6.1°C6.1°C232.810.611 h
December 15.8°C2.1°C2.1°C374.610.210 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 Nogales

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 Nogales) is explained once on the Nogales year overview and on the Sources, method and limits page.