Most destinations have a high season and a low season. Biloxi has a switch, and it is the Ship Island ferry.
From roughly the middle of March to the end of October there is a boat to the barrier island, which means the clear Gulf water, the fort and the national seashore are all reachable. Outside those dates there is no scheduled public way out there at all, and the destination becomes a city break: casinos, museums, seafood, Carnival, and a beach for walking rather than swimming.
Decide which of those two trips you want. Then use the calendar below.
The year, month by month
Temperatures are rounded averages rather than forecasts, and the water figure is the Mississippi Sound off the mainland.
| Month | Typical high / low | Sound water | What it is like |
|---|---|---|---|
| January | 60 / 42 | High 50s | Cheapest month of the year. Grey days, clear cold ones, empty museums |
| February | 63 / 45 | High 50s | Carnival often falls here. Parades, and rooms that are suddenly not cheap |
| March | 69 / 51 | Low 60s | The ferry restarts mid-month. Spring break fills the strip for a fortnight |
| April | 76 / 58 | Upper 60s | Arguably the best month. Warm, dry, everything open, nothing crowded |
| May | 84 / 66 | Mid 70s | Excellent, and the last month before the humidity settles in |
| June | 89 / 72 | Low 80s | Hurricane season opens. Daily afternoon storms begin. Island busy |
| July | 91 / 75 | Mid 80s | Hot, wet, loud. Early mornings and evenings only |
| August | 91 / 75 | Mid 80s | The same, plus the anniversary of 29 August, which the city marks |
| September | 87 / 70 | Low 80s | Statistical peak of storm season. Rates soften. Read the cancellation terms |
| October | 79 / 59 | Mid 70s | The other best month. Cruisin' week fills the coast. Ferry ends |
| November | 70 / 50 | Upper 60s | Quietest and clearest. No ferry. Best walking weather of the year |
| December | 63 / 44 | Low 60s | Cheap, quiet, and the lights along the beach road are better than expected |
The fixed points to plan around
Carnival season, from Twelfth Night through to Fat Tuesday. Biloxi's first city-sponsored parade rolled on 3 March 1908 behind a queen titled Ixolib, which is Biloxi spelled backwards, and the city has paraded ever since. Dates move with Easter, so check yours before booking a February trip expecting quiet, or expecting a parade.
The ferry season, roughly mid-March to the end of October, with a thinner schedule at each end and more sailings at the height of summer.
Hurricane season, 1 June to 30 November, with September the statistical peak here.
Cruisin' the Coast, published for 2026 as 4 to 11 October and marking its thirtieth year. Something in the order of ten thousand classic cars along thirty miles of US 90. Rooms from Bay St Louis to Pascagoula sell out months ahead and rates roughly double. It is either the reason you came or the week to dodge.
The Peter Anderson Arts and Crafts Festival in Ocean Springs, published for 2026 as 7 and 8 November. It is the largest arts festival on this coast and it fills the town.
The Blessing of the Fleet, held in Biloxi since 1929, when the shrimp boats are dressed with flags and blessed for the season. Dates move; ask the city.
Baseball, from spring into early autumn, when the Shuckers are at home downtown.
Best month for a specific thing
- Value: January, midweek. Nothing on this coast is cheaper, and the museums are yours.
- Swimming in clear water: May, or late September into October, when the Sound is warm and the ferry is still running but the island is not full.
- Walking, cycling and the bay bridge: November. Dry, clear, and no heat to schedule around.
- Fishing inshore: autumn, when bait moves and the water clears.
- Festivals: February for Carnival, October for the cars, November for the arts.
- Avoiding everyone: the first two weeks of December, or any weekday in late January.
- Families with school-age children: late May or the first week of June, before the worst of the heat and the crowds arrive together.
What hurricane season actually means for a booking
Not that you should avoid the Gulf in summer. That would rule out half the year for a risk that, on any given week, is small.
What it means is that you book differently. Take the refundable rate rather than the cheapest one, particularly from mid-August through September, and read what the cancellation terms actually cover. If you are insuring the trip, check that named-storm cancellation is included rather than assuming.
Then watch the National Hurricane Center rather than an app during the trip, and understand that surge warnings here are issued separately from wind warnings, because on this coastline the water is the thing that does the damage. If the county orders an evacuation, hotels and casinos here close. That is the system working, not a booking going wrong.
The everyday version
Far smaller and far more likely: thunderstorms most summer afternoons, lightning over open water, and a handful of days when the boats do not sail. That is what a June week here actually looks like.
The short answer
Come in April or October if you want one visit to work for everything. Warm water, open ferry, manageable heat, everything running.
Come in January if you want the cheapest good rooms on the American Gulf coast and do not mind that nobody is swimming.
Do not come in the first full week of October unless classic cars are the point, and do not come in late August or September without a refundable rate.
What summer heat here is actually like
Ninety degrees on this coast is not ninety degrees in a dry climate, and visitors underestimate it every year.
The humidity means the heat index regularly runs well above the air temperature, overnight lows in July and August rarely drop below the mid seventies, and the breeze off the Sound does not fix it because that breeze is also humid. There is no shade on the beach, none on the bay bridge path and none worth the name on Ship Island.
The schedule that works from June through August is early and late. Boats and beaches before about half past ten. Air conditioning from eleven until four, which on this coast means the casino floors, the museums, the aquarium in Gulfport and the children's museum. Back outside in the evening, when the light is good and the temperature finally moves.
Thunderstorms build inland late morning and roll back over the coast most afternoons. They arrive quickly and they are violent. Get off the water, off the piers and off the bridge path when the sky goes dark to the north, and treat it as ordinary rather than as a ruined day.
The case for coming in winter
Nobody markets a Gulf Coast winter, which is exactly why it works here.
Biloxi's strongest attractions are indoor or indifferent to temperature. The casino floors do not care what month it is. The seafood museum, the Ohr-O'Keefe galleries, Beauvoir and the Walter Anderson Museum across the bay are all better when there is nobody else in them. Oysters are at their best in cold water. And the beach, which is not a swimming beach at the best of times, is a genuinely lovely thing to walk five miles of in February with a coat on.
Rates are the other half of the argument. Midweek in January the strip is competing for a small number of visitors, and a room on the water can cost less than an inland motel does in July.
Two caveats. The ferry does not run, so the island is off the table entirely. And this coast does get cold fronts: not snow, but a few days each winter of wind, rain and temperatures in the forties that feel worse than the number because of the damp. Bring a proper coat rather than a beach jumper.
Last updated
Opening hours, ordinances and prices move with the season. We re-check this guide rather than rewrite it, and the date above is the last time someone did. How we research and correct.
