Houston Said 93. The Bay Breeze Said 92.
Some days the whole room agrees on the wrong number. June 25 at Houston Hobby (KHOU) was one of them.
The official forecast said 93°F. The market said 93 too — by early afternoon it was paying up big for the 93–94 bracket. The villain that made them all wrong is the one that shows up almost every Gulf Coast summer afternoon: the breeze off Galveston Bay.
Here's the mechanism, briefly. Land heats up fast in the morning sun; the water of Galveston Bay and the Gulf stays cool and steady. By midday the land is much warmer than the water, and that temperature contrast sets up a mini sea breeze: hot air over the land rises, and cooler, moister air slides inland off the bay to replace it. Once that onshore wind kicks in — usually early-to-mid afternoon, right around peak heating — it acts like a thermostat. The incoming bay air simply isn't as hot as the land was trying to get, so the climb stalls and the day's high gets capped a degree or two below the "sunny and hot" forecast. The stronger and earlier the breeze, the harder the cap.
That's exactly what happened — Houston topped out near 92°F early afternoon, the wind swung onshore and held, and the temperature started falling instead of pushing for 93.
The timeline: our call never blinked
Our daily-high call parked at about 92°F in the morning and stayed there all day, while the market spent hours chasing 93. Prices are what each bracket was trading at, in cents on the dollar:
| Time (local) | Our high call | Market: 93–94 | Market: 91–92 |
|---|---|---|---|
| 8 a.m. | ~92° | 53¢ | 42¢ |
| 10 a.m. | ~92° | 55¢ | 41¢ |
| Noon | ~92° | 51¢ | 45¢ |
| 2 p.m. | ~92° | 67¢ | 22¢ |
| 3 p.m. | ~92° | 71¢ | 25¢ |
| 4 p.m. | ~92° | 40¢ | 56¢ |
| Settled | 92° | 0¢ | $1.00 |
Two things jump out. First, the flat line — our call didn't wobble between hot and cold takes; it said low-90s early and held. Second, the market's slow walk to our number: the 93–94 ticket climbed to 71¢ in mid-afternoon, then fell off a cliff to zero, while the 91–92 bracket that actually won was on the clearance rack at 22–25¢ right when it mattered.
The trader's read
- A hot, sunny Houston morning is the bait; the afternoon bay breeze is the cap.
- When the forecast, the morning, and the market all agree on the hot number, that's exactly when the onshore wind tends to quietly undercut it.
- Watch the wind, not just the thermometer — the moment it swings onshore and holds, the high is usually already in.
Not every day plays out this way — sometimes the breeze stays weak and Houston genuinely cooks past forecast, and then you want the hot bracket. But June 25 was the textbook version: everyone leaned 93, the bay breeze said 92, and a steady 92° call was worth a dollar.
Weather is chaotic and markets are risky — past breezes don't guarantee future ones. Do your own homework, and never stake more than you can laugh off.
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