Houston Climate & Weather Averages

Climate Insights from Our Writers

“Houston's humidity is the defining feature of its climate, and I've studied few cities where the moisture in the air plays such a dominant role. The city's subtropical climate creates hot, humid summers and mild winters, with the Gulf of Mexico providing a constant source of moisture that makes the air feel heavy even on relatively cool days. The data shows that August averages 29°C with 75% humidity, creating a heat index that regularly pushes past 40°C. The best time for outdoor activities is March through May and October through November, when temperatures are milder and the humidity is more manageable. The hurricane season from June through November is the most significant weather risk, with the potential for devastating storms like Hurricane Harvey in 2017, which dropped over 1,500mm of rain on the city. The rainfall is substantial, with Houston receiving over 1,200mm annually, making it one of the wettest major US cities. The city's infrastructure — the bayou system, the flood control measures — reflects the constant challenge of managing this precipitation. The winter months are mild, with January averaging 11°C, and the city's outdoor attractions — the parks, the waterfront, the zoo — are accessible year-round. For travelers, the key is planning around the humidity — early mornings and evenings are the most comfortable times for outdoor activities, and air conditioning makes indoor exploration pleasant regardless of the weather. The data is clear: Houston's climate is challenging, but the city's culture and infrastructure have adapted to create a livable environment that rewards those who understand its rhythms.”

— Climate & Travel Writer