If you just moved to Houston and you're wondering why you're drenched in sweat after a 30-second walk to your car — welcome. It's not you. It's the humidity.
The science: Houston sits at sea level on the Gulf Coast. The Gulf of Mexico pumps moisture into the air constantly. Average relative humidity in July is 75-90%. Dew points regularly exceed 75F, which meteorologists classify as "oppressive." The air is literally heavy with water.
The timeline:
- May: Summer starts. 85F, humid but manageable.
- June-September: 95-100F with humidity that makes it feel like 110+. Walking outside at 7 AM feels like walking into a sauna. Your glasses fog when you step outside from AC.
- October: False hope. One cool front comes through. It's 65F for two days. Then back to 85.
- November-February: Actual nice weather. 50-70F. The reason Houstonians stay.
- March-April: Wildcard. Could be 60 or 90 on any given day.
Coping strategies that actually work:
- Car: remote start or a windshield shade. Your steering wheel in August will burn your hands.
- Clothing: linen and moisture-wicking fabric. Cotton absorbs sweat and stays wet.
- Home: set the AC to 72-74 and don't feel guilty. Your electricity bill will be $200-300/month in summer. That's normal.
- Hydration: drink more water than you think you need.
- Exercise: run before 6 AM or after 8 PM. Anything between 10 AM and 6 PM in summer is dangerous.
The upside: Houston winters are mild. While the rest of the country is scraping ice off windshields in January, you're in shorts. The trade-off is summer. You pay for your warm winter with a brutal summer.
Source: NWS Houston, personal suffering, 15 years of Houston summers
Your glasses fogging when you walk outside is the universal Houston experience. Every single time you leave a restaurant. Every single time.