What August feels like in Houston
Summer peaks in August: no month in Houston is warmer. Afternoons are very hot — outdoor plans work best early in the day or after sunset. Even after dark it stays hot and sultry. Some humidity hangs in the air, noticeable when the sun is strong.
Rain in Houston in August
Dry days are the exception, with rain on about every other day. When rain comes it is heavy, about 9.2 mm (0.4 in) per wet day, often in short, strong bursts. That is close to Houston's typical rain per wet day for the whole year (about 10.9 mm).
Daylight and sunshine in August
In mid-August, sunrise is at about 6:49 am and sunset at about 8:04 pm (local time) — 13 h 15 min of daylight. Days are getting shorter: 38 min less daylight than in mid-July. The sun is out for roughly 85% of those daylight hours, so skies are mostly clear.
How August compares to the rest of the year
Ranked by average high, August comes out as the warmest month in Houston. Afternoons run 0.8°C (1.4°F) warmer than in July, with 22 mm less rain. From here temperatures start to ease, beginning in September. September averages a high of 31°C (87.8°F).
Who August suits
- Sightseeing: less ideal — midday heat makes long walks hard.
- Parks & outdoor: less ideal — afternoons are too warm to linger outside.
- Museums & indoor: a good choice — a cool break during the hottest hours.
Tips for visiting Houston in August
Rain Protection
A compact umbrella and a light waterproof jacket.
Sun Protection
Sunscreen, a hat and sunglasses; light breathable clothes.
Quick questions
How warm is Houston in August?
Expect around 33.6°C (92.5°F) in the afternoon and 25°C (77°F) at night, which most visitors would call very hot.
Does it rain a lot in Houston in August?
It does: about 14 rainy days bring roughly 128 mm, so plan some indoor options.
What should I wear in Houston in August?
The numbers point to rain protection and sun protection. Evenings feel similar to the day, so the same clothes work from morning to night.
Is August or September better for visiting Houston?
On our 12-month climate ranking, September comes out ahead (#9 of 12 vs #11). September is cooler and has fewer rainy days.