Hot
Average highs reach 38°C, so days can feel very hot.
September verdict
Hermosillo, Sonora, Mexico in September
Weather score68Good
Good for holiday weather
Average highs reach 38°C, so days can feel very hot. Sunshine averages 8.5h per day, so bright days are a strong part of the month. Rainfall averages 36mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
38°C
Rain
36mm
Sun
8.5h
Weather score
68
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 36mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.5h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Hermosillo, Sonora, Mexico with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September38°C average high
September is one of Hermosillo's hottest months, so shade and slower afternoons matter.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
September36mm average rain
September sits near Hermosillo's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to June and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September8.5 hours average sun
September sits close to Hermosillo's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to June
This stretch has the strongest sunshine in the monthly averages.
Weather score
September68 weather score
September sits close to Hermosillo's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsApril to May and October
These months have the strongest weather score in the monthly averages.
