In shortRepellent belongs in the bag whatever date you book: in the Barataria wetlands the Park Service answers the mosquito question by saying they stay active through most of the year, and it asks visitors to bring bug repellent. A moving boat is the least bitey place you can be, because the deck sits in constant airflow; trails, launches and the wait before boarding are worse. Two other biters appear in the same official warnings, stinging caterpillars and fire ants, which is where the closed-toe shoe advice comes from.
Most of the yearmosquito activity in the preserve
110°Fsummer heat index peak
60s°FOctober and November highs
2.5 hourskayak time at water level
Swamp tour mosquitoes on the water and at the landing
Mosquitoes are active most of the year in the Barataria wetlands, and bringing bug repellent is official Park Service advice rather than something tour sellers invented. That is the honest baseline for any month you pick.
What the baseline does not tell you is that the bites arrive in clusters, almost always when you have stopped moving. The parking area, the walk to the landing, the queue at check-in and the first minutes on a tied-up boat are where people get hit. Once the boat runs, the deck sits in a steady draught and the problem mostly goes away.
Put repellent on in your room, before the pickup or the drive out. Check-in is 20 minutes before departure at the Marrero departure on Barataria Blvd, and on tours with a shuttle you need to be standing outside 317 North Rampart Street as the pickup window opens, so there is no quiet moment at the dock to sort yourself out.
Which months bite and which months let you off
No official source names a single worst month for mosquitoes in Louisiana. The park's own line is that they are active most of the year, so the useful question is which stretch combines insects with everything else that makes you uncomfortable.
That stretch is June to September. The air is humid, highs often reach the low 90s°F and the heat index can climb to 110°F, which means you sweat off repellent and have no interest in long sleeves. It also sits inside the hurricane season that runs June through November, and spring delivers frequent afternoon thunderstorms that leave water standing everywhere afterwards.
On bites alone, October and November win the year: highs in the 60s°F, nights down in the 40s to 50s°F and rain arriving less often, so you can keep sleeves on without cooking in them. Winter is quieter again, with daytime normals running from 62.5°F (16.9°C) in January to 66.4°F (19.1°C) in February, though 'active most of the year' still means repellent goes in the bag.
Hour of day matters as much as month. Biting insects pick up around dawn and again as the light goes, so of the four covered-boat starts at 9:30 AM, 12:15 PM, 2:45 PM and 5:00 PM, the 5:00 PM one is the one that puts you out at the buggiest end of the day. In summer take 9:30 AM, which also keeps you off the water during the worst of the heat.
| Period | From the official weather page | What to expect from biting insects | Best departure |
|---|
| June to September | humid, highs often in the low 90s°F, heat index up to 110°F | the peak nuisance stretch, and sweat works against repellent | 9:30 AM |
|---|
| October and November | highs in the 60s°F, lows in the 40s to 50s°F, rain less often | the easiest weeks of the year for bites and heat together | any of the four |
|---|
| December to February | day normals from 62.5°F (16.9°C) in January to 66.4°F (19.1°C) in February | quietest, but the park still calls mosquitoes active most of the year | 12:15 PM or 2:45 PM |
|---|
| March to May | frequent afternoon thunderstorms | standing water after rain, so cover arms and legs | 9:30 AM |
|---|
Bug repellent and clothing for a swamp tour in New Orleans
The park's guidance for outdoor activity here is short: insect repellent plus closed-toe shoes. No official source recommends a particular product or strength, so use whatever you already trust and bring enough to put on twice.
Clothing does more work than most visitors expect. Long light sleeves and trousers cover the ankles and forearms that take the bites, and they also deal with sun on an open deck. Sandals are the one item to leave in the room, because closed-toe shoes are the park's own advice and because ground-level insects are the ones you walk into.
Keep the repellent in a pocket rather than a bag in the hold. The draught that protects you disappears the moment the boat idles beside a cypress stand, which is exactly when the guide stops talking and everyone leans over the rail.
- Insect repellent, applied before you leave and carried with you
- Closed-toe shoes, as the park advises for outdoor activity here
- Long light sleeves and trousers rather than shorts, especially for a kayak or any walking
- A hat and sun cover for an open or lightly covered deck
- A warm layer for January dates, when the normals sit at 62.5°F (16.9°C) through the day and 46.1°F (7.8°C) after dark, which is also the quietest window for bites
Stinging caterpillars, fire ants and ground-level trouble
Beyond mosquitoes the park specifically warns about stinging caterpillars and fire ants, which is the other half of the closed-toe shoe advice. Fire ants are a ground problem: grass verges at parking areas, the edges of paths, the strip between a lot and a launch. Do not set bags or jackets down on grass while you wait.
Stinging caterpillars sit on foliage, so the habit worth having is simple. Keep your hands off overhanging branches and leaves at the water's edge, and do not pick anything up to look at it.
Walking routes are where all three problems meet, and repair work has taken most of those routes out of the picture for this travel season. The Visitor Center at Barataria Preserve and the bulk of its trail network went offline on 2 February 2026 for Hurricane Ida work that the National Park Service puts at about two years, which removes the Bayou Coquille and Marsh Overlook boardwalk together with Palmetto, Plantation, Old Barataria, Christmas Road, Ring Levee and Wood Duck.
Which format leaves you most exposed
Insects on a swamp tour scale with how slowly you move and how close you sit to the vegetation. A covered swamp boat is the least exposed option on this page: a roof over the bench, sides that break the airflow, and long stretches at speed between stops. An airboat has no roof at all, but it pushes a great deal of air past you.
A kayak is the other end. You sit at water level, you move slowly, your hands are on the paddle rather than on a repellent bottle, and the boat takes you right in among the cypress. That is the point of the format and also the reason to dress for it, with sleeves, trousers and closed-toe shoes.
If bites genuinely bother you, the best bet is a covered boat, October or November, 9:30 AM or midday. If you want the kayak regardless, pick a cool month and cover up, because the insect difference between a July paddle and a November one is larger than the temperature difference.
| Tour | Format | Exposure to biting insects | Duration | From | Rating |
|---|
| New Orleans Swamp and Bayou Boat Tour with Transportation | covered swamp boat | lowest: roof over the bench and airflow while the boat runs | 5 hours | from $76 | 4.9 ★ (7171 reviews) |
|---|
| Large Airboat Swamp Tour with Transportation | large airboat | open bench with no roof, but a lot of moving air | 4 hours 15 minutes | from $90 | 4.9 ★ (2132 reviews) |
|---|
| Small-Group Manchac Swamp Kayak Tour | small-group kayak | highest: water level, slow speed, hands on the paddle | 2.5 hours | from $90 | 4.9 ★ (995 reviews) |
|---|
Manchac kayak, planned around the bugs
If the kayak is what you came for, this is the trip to put long sleeves and repellent on for: 2.5 hours, from $90, rated 4.9 ★ (995 reviews), with a paddle lesson, all the gear and transport from the French Quarter included, and shuttle users meeting at 740 N Rampart Street one hour and 15 minutes before the tour time.
★ 4.9/5 · 995 reviews
Questions people ask
Do the tours provide insect repellent?
No. The inclusions on the covered boat with transportation are transport from downtown New Orleans, life jackets for guests under 16, wildlife encounters, live commentary on board and a professional guide; food, drinks and gratuities sit outside the price. Repellent is on you, and the Park Service recommends bringing it whatever month you travel.
Is a head net worth packing?
For a boat departure, no. The airflow across a moving deck does the job, and a net over your face gets in the way of seeing what sits on the bank. Keep repellent and long sleeves instead, and use them at the landing rather than on the water.
Should I worry about snakes as well as insects?
Not much, though the official instruction here runs alongside the insect advice: leave any snake or alligator plenty of room, and do not feed wild animals or try to catch them. Of the 22 snake species recorded at Barataria Preserve, the venomous count stops at two, the cottonmouth that people actually run into and the copperhead that keeps to drier ground. From a boat bench this is a non-issue.
If bites are a real problem for me, which trip should I book?
Take a covered swamp boat rather than a kayak, pick October or November, and choose a start other than 5:00 PM. Wear long sleeves, trousers and closed-toe shoes, keep repellent in a pocket for the moments the boat sits still, and apply it before you reach the dock rather than when you get there.
Read also
