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Houston Weather in September

Houston in September sees moderate temperatures, with highs around 15°C (59°F) and overnight lows of 4°C (39°F). Rainfall is fairly high at around 74 mm (2.9 in) on average, so pack waterproofs just in case.

Rainfall in Houston in September

This month experiences about 13 days of rain according to historical data, averaging 74 mm (2.9 in). The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Houston in September

September in Houston brings moderate temperatures, with highs of 15°C (59°F) and nights around 4°C (39°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. At 4°C (39°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

If your ideal day consists of dry skies and pleasant temperatures, July typically offers the best circumstances for Houston.

Houston Temperature in September

Min Temperature
4°C (39°F)
Max Temperature
15°C (59°F)
Chance of Rain
43%
Precipitation
74 mm (2.9 in)
Rainy days
13 days

Houston Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Houston - and find the best time to visit.

Best Places in Canada in September

Find out more about the weather in Canada and which places have the best travel conditions in this month. See all of Canada in September →

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

What to Wear in Houston in September

Pack for changing conditions in Houston in September. Bring a mix of short and long sleeves, a warm layer like a hoodie or light jacket, and comfortable pants. The key is being able to add or remove layers as the days goes by. Rain gear is recommended, you can expect wet weather on multiple days.

What To Do in Houston in September

We rated the following activities from 1 (least suitable) to 10 (best) to do.

  • Cycling
    6/10
  • Walking
    6/10
  • Barbeque
    5/10
  • Camping
    4/10
  • Outdoor sports
    9/10

Houston 3-Day Forecast

More climate data for Houston

Popular in September

Where to go in September - average daytime high across popular destinations.

Bucket list

Need travel inspiration? Check out our bucket list articles and be inspired.