Louisiana pollen and allergy seasons
Louisiana has a long humid season, with oak in early spring, grass through the warm months, and ragweed in the fall.
Twelve month pollen calendar
What is active in August
Cities in Louisiana
| City | Today | Worst today | Typical in August |
|---|---|---|---|
| Slidell | Moderateas of Aug 8 | Grass | Moderate |
| Pearl River | Moderateas of Aug 8 | Grass | Moderate |
| Lacombe | Moderateas of Aug 8 | Grass | Moderate |
| New Orleans | Lowas of Aug 8 | Mugwort | Moderate |
| Houma | Lowas of Aug 8 | Mugwort | Moderate |
| Metairie | Lowas of Aug 8 | Mugwort | Moderate |
| Mandeville | Lowas of Aug 8 | Mugwort | Moderate |
| Hammond | Lowas of Aug 8 | Mugwort | Moderate |
| Kenner | Lowas of Aug 8 | Mugwort | Moderate |
| Laplace | Lowas of Aug 8 | Mugwort | Moderate |
| Terrytown | Lowas of Aug 8 | Mugwort | Moderate |
| Chalmette | Lowas of Aug 8 | Grass | Moderate |
| Harvey | Lowas of Aug 8 | Mugwort | Moderate |
| Gretna | Lowas of Aug 8 | Mugwort | Moderate |
| Estelle | Lowas of Aug 8 | Mugwort | Moderate |
| River Ridge | Lowas of Aug 8 | Mugwort | Moderate |
| Destrehan | Lowas of Aug 8 | Mugwort | Moderate |
| Covington | Lowas of Aug 8 | Mugwort | Moderate |
| Timberlane | Lowas of Aug 8 | Mugwort | Moderate |
| Reserve | Lowas of Aug 8 | Mugwort | Moderate |
| Elmwood | Lowas of Aug 8 | Mugwort | Moderate |
| Martin | Lowas of Aug 8 | Mugwort | Moderate |
| Ponchatoula | Lowas of Aug 8 | Mugwort | Moderate |
| Gheens | Lowas of Aug 8 | Mugwort | Moderate |
| Madisonville | Lowas of Aug 8 | Mugwort | Moderate |
| Baton Rouge | Noneas of Aug 8 | None | Moderate |
| Shreveport | Noneas of Aug 8 | None | Moderate |
| Lafayette | Noneas of Aug 8 | None | Moderate |
| Lake Charles | Noneas of Aug 8 | None | Moderate |
| Monroe | Noneas of Aug 8 | None | Moderate |
| Alexandria | Noneas of Aug 8 | None | Moderate |
| Bossier City | Noneas of Aug 8 | None | Moderate |
| Prairieville | Noneas of Aug 8 | None | Moderate |
| Ruston | Noneas of Aug 8 | None | Moderate |
| Zachary | Noneas of Aug 8 | None | Moderate |
| Natchitoches | Noneas of Aug 8 | None | Moderate |
| Opelousas | Noneas of Aug 8 | None | Moderate |
| Pineville | Noneas of Aug 8 | None | Moderate |
| Broussard | Noneas of Aug 8 | None | Moderate |
| West Monroe | Noneas of Aug 8 | None | Moderate |
| Baker | Noneas of Aug 8 | None | Moderate |
| Minden | Noneas of Aug 8 | None | Moderate |
| Morgan City | Noneas of Aug 8 | None | Moderate |
| Denham Springs | Noneas of Aug 8 | None | Moderate |
| Inniswold | Noneas of Aug 8 | None | Moderate |
| Lecompte | Noneas of Aug 8 | None | Moderate |
| Patterson | Noneas of Aug 8 | None | Moderate |
| Saint Martinville | Noneas of Aug 8 | None | Moderate |
| Franklin | Noneas of Aug 8 | None | Moderate |
| Vivian | Noneas of Aug 8 | None | Moderate |
| Cade | Noneas of Aug 8 | None | Moderate |
| Leesville | Noneas of Aug 8 | None | Moderate |
| Rayne | Noneas of Aug 8 | None | Moderate |
| Benton | Noneas of Aug 8 | None | Moderate |
| Cottonport | Noneas of Aug 8 | None | Moderate |
| Erath | Noneas of Aug 8 | None | Moderate |
| Breaux Bridge | Noneas of Aug 8 | None | Moderate |
| Scott | Noneas of Aug 8 | None | Moderate |
| Oberlin | Noneas of Aug 8 | None | Moderate |
| Church Point | Noneas of Aug 8 | None | Moderate |
| Bastrop | Noneas of Aug 8 | None | Moderate |
| Carencro | Noneas of Aug 8 | None | Moderate |
| Marrero | No live reading | Not available | Moderate |
| Central | No live reading | Not available | Moderate |
| New Iberia | No live reading | Not available | Moderate |
| Bayou Cane | No live reading | Not available | Moderate |
| Sulphur | No live reading | Not available | Moderate |
| Shenandoah | No live reading | Not available | Moderate |
| Youngsville | No live reading | Not available | Moderate |
| Thibodaux | No live reading | Not available | Moderate |
| Luling | No live reading | Not available | Moderate |
| Gonzales | No live reading | Not available | Moderate |
| Claiborne | No live reading | Not available | Moderate |
| Gardere | No live reading | Not available | Moderate |
| Woodmere | No live reading | Not available | Moderate |
| Crowley | No live reading | Not available | Moderate |
| Moss Bluff | No live reading | Not available | Moderate |
| Bayou Blue | No live reading | Not available | Moderate |
| Abbeville | No live reading | Not available | Moderate |
| Presquille | No live reading | Not available | Moderate |
| Springfield | No live reading | Not available | Moderate |
| Cut Off | No live reading | Not available | Moderate |
| Albany | No live reading | Not available | Moderate |
| Glenmora | No live reading | Not available | Moderate |
| Holden | No live reading | Not available | Moderate |
| Saint Francisville | No live reading | Not available | Moderate |
| Welsh | No live reading | Not available | Moderate |
| Gramercy | No live reading | Not available | Moderate |
Today and worst today come from live readings where available. Typical shows the usual level for this month from the seasonal profile.
Pollen is only half of what's in the air. See today's air quality in Louisiana for ozone, dust, and smoke readings by city.
The Louisiana allergy season
Allergy levels in Louisiana peak in March, when oak pollen runs highest. The season moves through tree pollen around March, grass in April, weed pollen such as ragweed in September. Levels start to climb around February. The lowest pollen levels of the year arrive in January.
Common questions
When does allergy season start in Louisiana?
Pollen levels in Louisiana usually begin climbing in February and reach their highest point in March.
What is the worst month for allergies in Louisiana?
March is typically the worst month in Louisiana, driven by oak pollen.
When does ragweed season end in Louisiana?
Ragweed pollen in Louisiana usually fades by the end of November, after the first hard frost in colder areas.
When is the best time for allergies in Louisiana?
January usually brings the lowest pollen levels of the year in Louisiana.