March. Spring break, and it transforms the town rather than merely filling it. Water still cold enough that most people do not get in past their knees. Rates climb, traffic on Highway 59 is dreadful, and the far west end of Fort Morgan remains the escape.
April and May. Arguably the best six weeks of the year. Water warming through the seventies, air in the low eighties, the crowd not yet at full volume, and the Flora-Bama's Mullet Toss in late April as a set-piece. Turtle season opens 1 May.
June to August. The family season, at maximum. Water like a bath, days in the low nineties with humidity to match, thunderstorms building inland most afternoons, and every condominium full. Beautiful, expensive and busy. Start early, take the middle of the day off.
September. The quiet secret and the honest risk in one month. Water still warm, crowds gone once schools return, rates softening. It is also the statistical peak of hurricane season on this coast, and both Ivan and Sally arrived on 16 September. Buy the travel insurance.
October. The best month here and it is not particularly close. Water still swimmable well into the month, air in the low eighties, humidity finally broken, turtle season closing out, and the beach effectively empty. If your dates are flexible, take October.
November to February. Cold water, mild air, snowbirds in the condominiums and the campground, restaurants on winter hours. Not a swimming holiday. A very good walking, shelling, birding and cycling one, at a fraction of the price.