In shortOctober and November are the mildest stretch for a swamp tour near New Orleans: average highs in the 60s°F, lows in the 40s to 50s°F and rain that comes less often. The months to handle with care are June through September, humid and often in the low 90s°F with a heat index that can reach 110°F, which is the reason to pin that trip to the 9:30 AM departure. Hurricane season runs June through November.
60s°FOctober and November highs
110°Fsummer heat index
June to Novemberhurricane season
9:30 AMfirst boat of the day
The best season for a swamp tour near New Orleans
Aim for October or November if your dates can move. Highs average in the 60s°F across those two months, lows run 40s to 50s°F, and rain shows up less often than in the warm half of the year, so a covered deck and an open bench both work from the moment you push off.
Winter stays usable. December normals for the city are 64.8°F (18.2°C) by day and 48.4°F (9.1°C) overnight; January is the coldest month at 62.5°F (16.9°C) and 46.1°F (7.8°C); February warms back up to 66.4°F (19.1°C) and 49.7°F (9.8°C), the mildest of the three. Bring a jacket, because a moving boat over open water feels cooler than the same air felt in the car park.
Cold water changes what the boat finds. The Park Service calls alligator winter dormancy brumation: it sets in below 55°F (12.8°C), the animals can break it and move, and they need roughly 70°F (21°C) before they can digest and feed, with the Everglades species profile putting the shutdown at water temperatures of about 68-73°F (20-23°C). LSU AgCenter describes Louisiana animals as torpid through the cold weeks, surfacing only to breathe, then basking in late winter and early spring and feeding hard by late April.
A sunny December or January day still brings large animals onto the banks to bask, and the birds carry the cool months. At Bayou Sauvage inside the city, the US Fish and Wildlife Service reports thousands of waterfowl using the refuge in late winter and spring, with wading birds there all year.
New Orleans swamp weather, month by month
June through September is the stretch to think twice about. Highs often reach the low 90s°F, the air is humid, and the heat index can climb to 110°F, which is the number that matters when you are sitting still on a bench for two hours.
Spring brings storms rather than heat. Afternoon thunderstorms are frequent from March into May and they can keep boats tied up, so book the first half of the day.
Hurricane season runs June through November, overlapping the hot months at one end and the mild October and November window at the other. Put the swamp early in your itinerary and hold a later day in reserve in case a tropical system comes through.
| Month | Temperatures | What the weather does | Which departure to pick |
|---|
| October and November | highs in the 60s°F, lows in the 40s to 50s°F | rain less often, hurricane season still running | any of the four, 9:30 AM to 5:00 PM |
|---|
| December | 64.8°F (18.2°C) high, 48.4°F (9.1°C) low | cooling into winter | 12:15 PM |
|---|
| January | 62.5°F (16.9°C) high, 46.1°F (7.8°C) low | coldest month of the year | 12:15 PM, with a layer |
|---|
| February | 66.4°F (19.1°C) high, 49.7°F (9.8°C) low | mildest of the three winter months | 12:15 PM or 2:45 PM |
|---|
| March to May | warming week by week | frequent afternoon thunderstorms | 9:30 AM |
|---|
| June to September | highs often in the low 90s°F, heat index up to 110°F | hot and humid, hurricane season under way | 9:30 AM |
|---|
Covered boat or open airboat, by season
The roof decides how the weather lands on you. A covered flat bottom swamp boat keeps the sun off and takes the edge off a shower, which makes it the sensible choice from June to September, when the heat index peaks and there is no shade on the water.
An airboat is an open bench with a fan behind it and nothing overhead. Between October and February that works in your favour, because the breeze off a moving boat is welcome; in July it works against you. Rain on an open boat is simply rain, so read the forecast more closely if that is the format you want.
Wind counts for more than visitors expect. A grey, blustery day at the same temperature as a calm one feels colder once the boat is moving, and that is the day to choose the roof.
- October and November: one light layer is enough, with highs in the 60s°F and lows in the 40s to 50s°F.
- December to February: a real jacket for the deck, since January normals are 62.5°F (16.9°C) and 46.1°F (7.8°C).
- March to May: something waterproof, because afternoon storms are frequent.
- June to September: sun cover, water, and the earliest departure you can get.
- Every month: closed toe shoes and insect repellent, which the Park Service advises because mosquitoes are active most of the year and the wetlands also hold stinging caterpillars and fire ants.
Which departure time to book
Between May and September the earliest slot is the one worth holding out for. On the Honey Island boat tour with transportation that is the 9:30 AM departure, picked up outside the Homewood Suites French Quarter at 8:00 AM, and the shuttle leaves promptly.
The timetable gives you 9:30 AM, 12:15 PM, 2:45 PM and 5:00 PM to work with across the year. In July and August, skip the 12:15 PM and 2:45 PM boats. The 5:00 PM departure puts you on the water as the heat eases, which makes it the better late option in high summer.
Reverse all of this in winter. Alligators need warmth before they will move or climb out to bask, so a January or February trip does better on the 12:15 PM or 2:45 PM boat than on the 9:30 AM one, when the night has barely lifted off a normal low of 46.1°F (7.8°C).
The Honey Island boat with four start times
Departures at 9:30 AM, 12:15 PM, 2:45 PM and 5:00 PM let you match a cooler hour to the month you are travelling in. Count on 5 hours away from your hotel, from $76, 4.9 ★ (7171 reviews).
★ 4.9/5 · 7,171 reviews
What to do about storms and a spare day
Weather stops boats here in two ways. Spring afternoons bring frequent thunderstorms, and the June to November hurricane season can park a tropical system over the coast; either one can mean a departure does not go out.
Check the weather widget on this page while you are picking dates, then look again the evening before. If the picture is unsettled, move the swamp to your earliest free morning and keep a later day clear as the backup.
Matching your month to a tour
Once the month and the hour are fixed, the format follows from them. Three of the listings on this site cover most of the answers.
- Cool months, roughly October to February, when an open deck is pleasant rather than punishing: the Large Airboat Swamp Tour with Transportation, from $90 for 4 hours 15 minutes, 4.9 ★ (2132 reviews), with a professional guide plus hotel pickup and drop-off.
- June to September, first boat of the day: New Orleans Swamp and Bayou Boat Tour with Transportation, 5 hours, from $76, rated 4.9 ★ (7171 reviews), on a quiet 22-passenger flat-bottom boat, with live commentary on board and a 9:30 AM departure collected at 8:00 AM.
- Any month when you want a short day and alligators as the point: New Orleans Swamp and Bayou Alligator Tour, 1.25-4 hours, from $35, rated 4.3 ★ (1343 reviews), a narrated cruise with transport included only if you select that option.
Questions people ask
Which month gives the most alligator activity?
Late April through September is the active half of the year. Come in April or May and you arrive in the mating season; June and early July go to nest building and egg laying; by August or early September the eggs hatch and 9 to 11 inch hatchlings turn up, as LSU AgCenter sets out. Feeding tails off around early October, which makes October the best compromise between animal activity and comfortable air.
Is February better than March for a swamp tour?
February is the safer booking of the two. Its normals are a high of 66.4°F (19.1°C) and a low of 49.7°F (9.8°C), the mildest of the three winter months, and the weather is more settled. March belongs to the spring pattern of frequent afternoon thunderstorms, so take a morning departure if you do come then.
Do swamp tours run through the winter?
Departures continue year round at the docks covered on this site, with the major holidays set aside at one of them, and the Honey Island boat with transportation keeps the same four start times from 9:30 AM to 5:00 PM. The number of boats can thin out in the cold weeks, and the late afternoon slot at one refuge dock is seasonal. What stops a boat is the weather on the day.
Which months are best for birds in the swamp?
Fall through spring is the stronger half of the year for raptors and ducks, with Sharp-shinned Hawk, Cooper's Hawk and Bald Eagle recorded in that window on the Manchac side and ducks such as Green-winged Teal, Ring-necked Duck and Hooded Merganser among nearly 200 species logged there. Nesting Swallow-tailed Kite, Acadian Flycatcher and Swainson's Warbler belong to the warm months in the Honey Island Swamp, which has 214 recorded species. Wading birds are present all year.
Is September a bad month to book?
September falls in the worst overlap of the year, inside the hot stretch, with highs often in the low 90s°F and a heat index up to 110°F, and inside the hurricane season that runs June through November. It is still a good trip if you take the 9:30 AM boat, choose a covered deck over an open one and leave a second day free in case a storm passes.
Read also
