July is the deep heat of the Louisiana summer — afternoon thunderheads tower over the marshes, the crape myrtles blaze, and the cardinal flowers flame along the bayous. Birding moves to dawn, the garden runs on okra and southern peas, and the southbound shorebirds already trickle down the coast.
Week by week in July
July 2–8
- The quietest birding stretch — Ruby-throated Hummingbirds dominate gardens, and the first southbound shorebirds trickle down the coast.
- Cardinal flower flames along the bayous and the swamp mallow opens its huge hibiscus flowers in the wetlands.
- Start tomato and pepper transplants indoors now for the fall garden, even as okra and southern peas carry the summer.
July 9–15
- High summer fills the stalls — okra, southern peas, eggplant, melons, figs, and the last Creole tomatoes alongside fresh Gulf shrimp.
- Crape myrtles blaze on through the heat, and the muscadines and persimmons develop on the vines and branches for fall.
- A shallow puddling spot draws crowds of male butterflies in the heat as the gardens swarm with summer species.
July 16–22
- The Milky Way arches at its summer best, the Summer Triangle of Vega, Deneb, and Altair high overhead split by the dark Great Rift.
- Wood Storks disperse north into Louisiana's swamps and ponds in their post-breeding wandering.
- Give tired tomato plants a hard prune to push a fall flush, and order seed for the fall cool-season garden.
July 23–29
- Southbound shorebirds build on the coast — Pectoral, Stilt, and Least Sandpipers and yellowlegs crowd the ricelands and mudflats.
- Rain lilies burst up overnight after heavy thunderstorms, and the rose mallow holds in the wet ditches.
- Watermelons and cantaloupes are at their sweetest, with figs at their peak and the first muscadines nearing.
Birds This Month
July is Louisiana's quietest birding month, best worked at dawn before the heat and the afternoon storms. The resident breeders finish raising young — Northern Cardinals, Carolina Wrens, Painted and Indigo Buntings, Northern Mockingbirds, and the bottomland warblers — and family groups appear at feeders and water. Ruby-throated Hummingbirds dominate the gardens, drawn to trumpet creeper, cardinal flower, and feeders, building toward the late-summer surge.
Even in midsummer, fall migration begins. The first southbound shorebirds — Least and Semipalmated Sandpipers, Lesser Yellowlegs, Stilt Sandpipers, and Pectoral Sandpipers — trickle down the coast and into the ricelands and mudflats, having already failed or finished Arctic nesting. The marshes and rookeries still hold Roseate Spoonbills, egrets, herons, and White Ibis, with the young now flying, and Brown Pelicans, the state bird, work the coast in family groups. Wood Storks disperse north into Louisiana's swamps and ponds in their post-breeding wandering.
What's Blooming
July's bloom belongs to the heat-lovers in Louisiana. The crape myrtles are at full blaze along every street and roadside, and the wetlands flame with cardinal flower on the bayou banks and ditches, drawing the Ruby-throated Hummingbirds. The American lotus raises its great pale flowers from the still backwaters, and spider lilies and buttonbush hold on in the wet edges.
The summer prairie and roadsides glow with black-eyed Susan, coreopsis, coneflower, blazing star, rosinweed, partridge pea, ironweed, and the climbing trumpet creeper and passionflower (maypop). Gardens carry the heat-tolerant annuals — zinnias, pentas, lantana, vinca, cosmos, and melampodium — alongside oleander, hibiscus, and the tropical plumeria and angel's trumpet. In the swamps the native swamp mallow (rose mallow) opens its enormous pink and white hibiscus flowers, a spectacular feature of the Louisiana wetlands in high summer.
Garden This Month
July is the toughest month in the Louisiana garden, when extreme heat, humidity, and afternoon storms test every plant. The summer producers carry on — okra, southern (field) peas, sweet potatoes, eggplant, hot peppers, Malabar spinach, yard-long beans, and cushaw — and the key is consistent deep watering in the early morning, heavy mulch, and daily harvest of okra and peas before they toughen. Many gardeners give tired tomato plants a hard prune now to push a fall flush as the nights cool.
Critically, July is when the fall garden begins. Start tomato, pepper, and eggplant transplants indoors or in a shaded nursery bed now to set out in August for a fall crop — Louisiana's second great growing season. Order seed for the fall cool-season crops. Battle the season's pests and diseases — spider mites, stink bugs, nematodes, and fungal blights — and stay ahead of the explosive weeds, fire ants, and mosquitoes. Keep the summer annuals and crape myrtles deadheaded and fed, and provide water for wildlife in the heat.
Zone 9a (Acadiana & central prairie): midsummer survival mode. Harvest okra and southern peas daily, keep peppers and eggplant watered, and start tomato and pepper transplants indoors now for the productive fall garden ahead.
Zone 9b (lower delta & New Orleans): only the toughest heat-lovers thrive — okra, southern peas, sweet potatoes, hot peppers, and Malabar spinach. Water deeply, mulch heavily, and begin planning the fall garden as the worst heat peaks.
What's at the Farmers Market
July keeps Louisiana markets brimming with high-summer produce, even as the heat and afternoon storms wear on. Gulf shrimp lands fresh at the coastal docks, and the late Creole tomatoes from Plaquemines and St. Bernard still command the Crescent City, Red Stick, and Lafayette market tables alongside the full summer harvest.
The stalls peak with tomatoes, sweet corn, summer squash, zucchini, cucumbers, okra, southern peas, eggplant, bell and hot peppers, snap beans, melons (cantaloupe, watermelon), and the season's figs, blackberries, and the first muscadines nearing. Local honey, eggs, and cut flowers round out the markets. Choose okra small and tender so the pods snap cleanly, select watermelons heavy for their size with a creamy-yellow ground spot and a deep hollow thump, and keep tomatoes at room temperature, never refrigerated. Choose Gulf shrimp firm and translucent with a clean sea smell, avoid any ammonia odor, and keep them on ice, using within a day or two.
Night Sky This Month
July's warm, humid Louisiana nights bring soft, hazy skies, but the rising summer Milky Way rewards those who chase a clear, dry window after a front passes. The darkest escapes from the city glow remain the open marshes of Sabine and Cameron Prairie NWRs, the Acadiana ricelands, the pinelands of Kisatchie National Forest, and the wide Atchafalaya. The Baton Rouge Astronomical Society, Pontchartrain Astronomy Society, and the LIGO Science Education Center near Livingston hold summer programs.
The Milky Way arches across the sky at its summer best. Scorpius, with red Antares, and the Sagittarius teapot ride low in the south, the teapot's spout steaming into the bright star clouds of the galactic center — superb in binoculars. Overhead the Summer Triangle of Vega, Deneb, and Altair dominates, with the dark Great Rift splitting the glowing band. The Southern Delta Aquariid meteor shower builds late in the month, and the Perseids begin their long ramp toward August. The printable Louisiana night-sky guide gives this year's exact peak dates, planet positions, and dark-sky sites.
Butterflies & Pollinators
July keeps Louisiana butterflies abundant despite the heat, especially in the cooler morning hours and around well-watered gardens. The swallowtails fly strong — eastern tiger, black, pipevine, giant, spicebush, and zebra — alongside abundant gulf fritillary, variegated fritillary, cloudless sulphur, little yellow, sleepy orange, and the brushfoots common buckeye, red-spotted purple, hackberry and tawny emperors, and viceroy along the willows.
The grass skippers swarm — fiery, sachem, dun, and the shade-loving Carolina satyr — and the hairstreaks add their sparkle. Resident monarchs continue breeding on the native milkweeds, and the goatweed leafwing patrols the croton in the bottomland woods. In the wetlands, butterflies crowd the swamp mallow, buttonbush, and cardinal flower. A shallow, damp puddling spot in the garden draws crowds of males in the heat, and well-watered lantana, pentas, and zinnias keep the nectar flowing through the worst of the summer.
What to plant for them is in the Louisiana native plants guide
Trees This Month
July holds Louisiana's forests in deep, full summer green, the canopy dense and shaded. The crape myrtles blaze on through the heat, the signature summer-blooming small trees of the Southern streetscape, and the late Southern magnolia, the state flower, still opens scattered creamy blossoms in the canopy. The sweetbay magnolia finishes its fragrant bloom in the wet woods.
In the swamps, the bald cypress, the state tree, and the water tupelo stand dark over the dropping Atchafalaya water of summer, and the bottomland oaks swell their developing acorns. The buttonbush finishes flowering along the bayous, and the native fruits ripen — black cherry, red mulberry, and the early persimmons and muscadines developing for fall. The northern pinelands — loblolly, longleaf, shortleaf, and slash — stand dark and full, dropping needles in the heat, and the longleaf savannas shade the high-summer wildflowers and wiregrass beneath the open canopy.
The Louisiana native plants guide covers what grows with them
Weather & Daylight
Across Louisiana, a typical July day averages a high near 92°F and a low near 73°F, with about 5.3 inches of precipitation — statewide averages from the 1991–2020 U.S. climate normals.
Peak summer swelter hits low-90s highs with little overnight relief, humidity thick and thunderstorms rolling through often.
| Average high | 92°F |
|---|---|
| Average low | 73°F |
| Precipitation | 5.3 in |
| Sunrise (mid-month) | 6:14 CT |
| Sunset (mid-month) | 20:12 CT |
Figures are statewide averages over the 1991–2020 U.S. climate normals; local conditions vary with elevation and distance from the coast. Sunrise and sunset are computed for a midstate point on the 15th (CT).
Next month's version of this page, by email
One short note when Louisiana's next month turns — what's arriving, blooming, and worth a night outside.
Go deeper with the Louisiana guides
The complete Louisiana birding, native-plant, and night-sky references — or the whole year, week by week, in one book.
Same month elsewhere: July in Maine · July in Maryland · July in Massachusetts