CA pollen report
Irvine Pollen Report
Irvine's master-planned landscape is full of ornamental trees — and Orange County's mild coastal climate keeps them, and the region's grasses, pollinating nearly year-round. Olive, oak, and sycamore drive the spring, Bermuda grass runs through the long warm season, and Santa Ana winds can carry pollen — and dust — in from the inland deserts.
Collection coming soon to Irvine
PollyMap is actively recruiting a verified local partner in Irvine. Be the first to know — or apply to be the partner.
What drives allergies in Irvine
Trees: olive, oak, and sycamore (February – May)
Ornamental olive trees, coast live oak (Quercus agrifolia), and sycamore drive the spring season across the planned city's greenbelts.
Grasses: Bermuda, nearly year-round (March – November)
Bermuda grass — Orange County's lawn standard — pollinates for most of the year in the mild climate.
Weeds: modest (August – October)
Ragweed is lighter than inland; sagebrush from the nearby hills and pigweed contribute in the fall.
Santa Ana winds: the wildcard
Fall and winter Santa Ana events blow pollen and dust in from the inland deserts, spiking symptoms on dry, windy days.
Historical reports
Cities near Irvine
Explore pollen activity in nearby cities reported by the PollyMap network.
Frequently asked questions
What is the pollen count in Irvine today?
PollyMap publishes real, microscope-verified pollen counts for Irvine — measured from physical air samples. The latest report on this page shows current tree, grass, weed, and mold levels.
Is the pollen count high in Irvine right now?
Irvine's worst stretches are spring (olive, oak), summer (Bermuda grass), and Santa Ana wind events. The measured reports on this page show today's actual levels.
When is allergy season in Irvine?
Nearly year-round: trees February–May, grasses most of the year, weeds in the fall, and Santa Ana wind spikes in fall and winter.
Why do Santa Ana winds trigger allergies in Irvine?
The hot, dry winds carry pollen and fine dust from inland deserts into Orange County — even people without classic allergies feel them.
Are you an allergy clinic in Irvine? Claim your territory on PollyMap.
PollyMap is a local authority-building tool for allergy clinics, ENT practices, and any clinic that offers allergy care. By becoming the Official PollyMap Partner for your part of Irvine, your clinic gets credited on real pollen reports, receives ready-to-share weekly content, and becomes the go-to local expert patients trust.
We assign each partner a designated territory within the Irvine metro — like a franchise territory. Irvine has room for multiple partners, but once your area is assigned, it's locked to your clinic.
No clinic has claimed a territory in Irvine yet. The best areas go to the first clinics that sign up — once one does, that part of town is off the table for everyone else.
Irvine, Tustin, Lake Forest, and Costa Mesa each make natural PollyMap territories. The first allergy clinic in each area becomes its credited pollen expert.
- Your clinic credited on every Irvine pollen report
- Weekly real-sample reports and ready-to-share content under your brand
- Locked territory — competing clinics can't claim your area
- Become the go-to allergy expert in your part of Irvine