Hot
Average highs reach 34°C, so days can feel very hot.
September verdict
Good for holiday weather
Average highs reach 34°C, so days can feel very hot. Sunshine averages 6.9h per day, enough for a balanced month. Rainfall averages 78mm, which is relatively low for holiday planning.
Monthly averages
Temp
34°C
Rain
78mm
Sun
6.9h
Weather score
69
Good
Hot
Average highs reach 34°C, so days can feel very hot.
Drier
Rainfall averages 78mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.9h per day, enough for a balanced month.
Map
Compare Piedras Negras, Coahuila, Mexico with nearby places by weather score, rain, sun, temperature, and swim conditions.
September34°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
September78mm average rain
September is one of Piedras Negras' wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to April, July to August, and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September6.9 hours average sun
September sits close to Piedras Negras' yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJune to August
This stretch has the strongest sunshine in the monthly averages.
September69 weather score
September scores above Piedras Negras' yearly average, so the overall weather mix is stronger than most months.
Best weather monthsApril to May and October
These months have the strongest weather score in the monthly averages.