Houston Weather in September

Thinking of visiting Houston in September? Expect very high temperatures reaching 32°C (90°F) during the day, dropping to 23°C (73°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in Houston in September

Based on our climate data of the past 30 years, about 13 days of rain are anticipated, with 157 mm (6.2 in) on average. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Houston in September

September in Houston brings typical temperatures with highs around 32°C (90°F) and lows of 23°C (73°F). Mornings and evenings are often more comfortable than the peak afternoon hours. With lows of 23°C (73°F), the nights are warm and generally comfortable.

Sunshine in Houston in September

The month enjoys around 235 hours of sunshine, creating mostly sunny days with good weather conditions.

Wind Speed in Houston in September

Average wind speeds reach 3 m/s (6 knots) in September, creating light breezes that feel pleasant throughout the day. Some days are calmer, while others bring slightly more active breezes.

If you prefer enjoying temperate temperatures and rain-free days, March typically offers the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.