Weather in Houston in September 2024
Average weather
Average temperature in Houston in September
Going from a maximum of +97°F during the day to a minimum of +59°F during the night, the temperature in September averages around +91°F.
The average maximum temperature goes down 24% by the end of the month, compared with the beginning of the month, from +93°F to +84°F.
Is Houston warm or cold in September?
Houston is typically hot in September.
Maximum temperatures go up compared to the previous month from +93°F to +88°F. The minimum temperature also goes down from +75°F to +72°F.
Make sure that you pack your summer linen and swimming costumes; it’s probably going to be hot.
Take a look at how September is compared to other months in Houston:
Climate in Houston in September
| August | September | October | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +93°F | +88°F | +82°F | ||||
| Min. temperature | ||||||
| +61°F | +50°F | +32°F | ||||
| Max. temperature | ||||||
| +106°F | +108°F | +95°F | ||||
| Rainfall | ||||||
| 105 mm | 116 mm | 110 mm | ||||
| Wind | ||||||
| 2 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 73% | 72% | 71% | ||||
| Air pressure | ||||||
| 1013 HPa | 1013 HPa | 1015 HPa | ||||
| Sunny days | ||||||
| 8 | 10 | 12 | ||||
| Cloudy days | ||||||
| 14 | 11 | 13 | ||||
| Rainy days | ||||||
| 9 | 9 | 6 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
September often has better weather than August. It’s getting colder in September. From +93°F in the day, the average maximum temperature lowers to +88°F. Prepare for more rain. Average rainfall goes from 105 mm to 116 mm. It feels drier, as humidity decreases from 73% to 72%. The average wind speed doesn’t change much during September, staying around 2 m/s. The good news is there are likely to be more sunny days in September, from 8 to 10.
October brings much the same weather, it remains good.
Wind
The average wind speed is 3 m/s getting up to 5 m/s which is a light breeze; barely moving the tree leaves.
The average wind speed in Houston is gradually increasing during September, going from 2 m/s to 4 m/s over the course of the month.
Rain
How was the weather last September in Houston?
Climate Change Over the Years
The climate in Houston in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1983 (+84°F) and the highest in 2011 (+96°F). The driest year was 1989 with only 25 mm of rainfall, and the wettest year was 2020 with 713 mm.
FAQ
Is September a good time to visit Houston?
Can you sunbathe in Houston in September?
Is Houston rainy in September?
Is it sunny in Houston in September?
Other cities in USA
Monthly weather in Houston
Source of the data
For this page, we’ve looked at the typical weather in Houston, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.