Houston weather
Our guide to the weather in Houston during September
We've looked at the most up-to-date weather data for Houston, covering the last 12 years up to 2026, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Houston weather in September.
How hot is it in Houston during September?
The temperature reaches around 32℃ during the daytime in September, falling away to 24℃ at night. Of course, the high humidity will make it feel even hotter. The UV index will be high at this time of year, so protection against skin and eye damage is needed. Try to limit exposure between 10am and 4pm. Apply broad spectrum SPF 30+ sunscreen every few hours, even if it's cloudy, or more frequently after sweating or swimming, and wear UV-blocking sunglasses too, and bear in mind that bright surfaces, such as sand and water increase UV exposure.
Does it rain in Houston during September?
September is typically the wettest month in Houston. On average, there will be 11 rainy days during the month, amounting to 227.2mm in total. That's a lot of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. Due to the high temperature and humidity, you might expect lots of thunderstorms, however they're actually fairly infrequent at this time of year. On average, September will see just 4 days that produce a storm.
Is it windy in Houston during September?
You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in September. The high humidity and warm temperature will make the breeze feel warm, so any cooling effect will be limted.
Houston Blog posts
From the UK's most popular travel bloggers
10 fun things to do in Houston, Texas
7th December 2022 by Two Monkey's Travel
Houston, Texas, is among the top 4 most populated cities in the US, having approximately 2.3 million inhabitants. Its unique historical value, diversity of attractions, remarkable architecture, and state-of-the-art museums make it one of the top tourist hotspots. NASA’s Space Center and Astronaut Training Complex in Houston also draw the attention of visitors....
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