Houston in september: average Weather, Temperature and Climate
Weather in Houston in september 2025
The weather in Houston in the month of september comes from statistical datas on the last years. You can view the weather statistics for all the month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather UV index: 7
Weather at 6am
76°F
Clear/Sunny
33% of time
23%
20%
13%
Weather at 12pm
90°F
Clear/Sunny
33% of time
24%
20%
18%
Weather at 6pm
85°F
Clear/Sunny
37% of time
22%
22%
16%
Weather at 3am
77°F
39%
22%
21%
10%
Evolution of daily average temperature and precipitation in Houston in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Houston in september.
The climate of Houston in september is good
the weather in Houston in september is wet (with 9.6in of rainfall over 11 days). Unfortunately, the weather conditions is worsening than the previous month since in august there is an average of 8.9in of rainfall over 10 days.
The climate is very hot in that area this month. The thermometer averaged maximum of 90°F. The minimum is 76°F. Thus, the mean temperature average in september in Houston is 83°F. These temperatures are far removed from those records observed in Houston in the month of september with a maximum record of 103°F in 2012 and a minimum record of 59°F in 2010. You You can hope to have about 25 days with temperatures above 86°F, or 83 of the month.
Day length in Houston in september is 12:20. Sunrise is at 06:06 and sets at 18:26.
With a good weather, september is a good time to go there.
Seasonal average climate and temperature of Houston in september
Check below seasonal norms These statistics are compiled from the weather statements of the last years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 83°F | ||||
| Highest temperature | 90°F | ||||
| Lowest temperature | 76°F | ||||
| Highest record temperature | 103°F (2012) | ||||
| Lowest record temperature | 59°F (2010) | ||||
| Number of days at +86°F | 25 day(s) (83%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Sea temperature | |||||
| Average sea temperature | 84°F | ||||
| Lowest sea temperature | 80°F | ||||
| Highest sea temperature | 88°F | ||||
| Wind | |||||
| Wind speed | 14km/h | ||||
| Wind temperature | 76°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 9.6in | ||||
| Number of days with rainfall | 11 day(s) (38%) | ||||
| Record daily rainfall | 4.1in (2019) | ||||
| Other climate data | |||||
| Humidity | 86% | ||||
| Visibility | 8.99km | ||||
| Cloud cover | 31% | ||||
| UV index | 7 | ||||
| Daily sunshine hours | 11 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:06 | ||||
| Time of sunset | 18:26 | ||||
| Length of day | 12:20 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in Houston in september 2024:
76°F to 85°F
76°F to 88°F
76°F to 92°F
77°F to 86°F
76°F to 81°F
77°F to 86°F
74°F to 90°F
72°F to 88°F
68°F to 88°F
74°F to 88°F
74°F to 85°F
74°F to 86°F
72°F to 92°F
77°F to 95°F
79°F to 95°F
77°F to 97°F
79°F to 95°F
77°F to 97°F
77°F to 94°F
77°F to 97°F
76°F to 92°F
79°F to 95°F
81°F to 90°F
77°F to 90°F
79°F to 90°F
74°F to 92°F
70°F to 92°F
74°F to 97°F
74°F to 97°F
77°F to 97°F
Map: other cities in the United States (USA) in september
Cities near Houston:
| Galveston in september | tolerable weather |
| Austin in september | good weather |
| Waco (Texas) in september | good weather |
| Port Aransas in september | good weather |
| Corpus Christi in september | good weather |
| San Antonio (Texas) in september | good weather |
| Louisiana in september | good weather |
| Dallas in september | good weather |
| South Padre Island in september | good weather |
| McAllen in september | good weather |
| Biloxi in september | tolerable weather |
| Mississippi in september | good weather |
Click over cities on the map for information about the weather in september.
Houston
perfect weather
good
tolerable
bad
very bad
Weather data for Houston in september:
Weather data for Houston for september are derived from an average of the weather forecast since 2009 in Houston. There is a margin of error and these forecasts are to be considered as general information only. The weather in Houston can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Houston.