Hot
Average highs reach 33°C, so days can feel very hot.
September verdict
Good for holiday weather
Average highs reach 33°C, so days can feel very hot. Sunshine averages 7.8h per day, enough for a balanced month. Rainfall averages 130mm, so some wet days are possible.
Monthly averages
Temp
33°C
Rain
130mm
Sun
7.8h
Weather score
64
Good
Hot
Average highs reach 33°C, so days can feel very hot.
Showers
Rainfall averages 130mm, so some wet days are possible.
Some sun
Sunshine averages 7.8h per day, enough for a balanced month.
Map
Compare Harlingen, Texas, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
September33°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.
September130mm average rain
September is one of Harlingen's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to April, July, and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September7.8 hours average sun
September sits close to Harlingen's 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.
September64 weather score
September sits close to Harlingen's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsMarch to April and October
These months have the strongest weather score in the monthly averages.