Los Angeles, CA Oak Pollen
Oak pollen in Los Angeles usually peaks around April, reaching High at its worst. Los Angeles has a mild, drawn-out allergy season rather than a sharp one: olive and oak in spring, mulberry alongside them, grass through late spring, and scattered weed pollen much of the year.
Coast live oak drives the Los Angeles spring tree season, peaking in March and April.
Oak in Los Angeles today
Tuesday, July 28, 2026
Oak pollen by month in Los Angeles
How oak usually runs across the year. The current month is outlined.
Managing oak season in Los Angeles
If oak is your trigger, start a daily antihistamine like cetirizine (Zyrtec) or loratadine (Claritin) a week or two before the April peak, rather than waiting for symptoms. Keep windows closed on high-count mornings, shower and change clothes after time outside, and run the AC on recirculate in the car.
When symptoms don't ease with over-the-counter medicine, an allergist in California can test whether oak is really what you react to and talk through longer-term options like allergy shots.
Sources
More pollen in Los Angeles
- Los Angeles grass pollen — peaks April to May.
- Los Angeles mulberry pollen — peaks March and April.
- Los Angeles olive pollen — peaks March to April.
- Los Angeles ragweed pollen — peaks August to September.
- Los Angeles pollen calendar — every allergen, month by month.
- Los Angeles pollen count today — live tree, grass, and weed levels with a 5-day forecast.
- California pollen season — the statewide calendar and other cities.
Get Los Angeles pollen alerts
We send a free email whenever pollen is High or Very High in Los Angeles. No spam, no daily emails when pollen is low. Just a heads-up on the days that matter.
Sign up for free alertsSeasonal pattern based on California pollen data and local sources. Today's reading updated daily. MyPollenPal