Very Low Pollen in Santa Ana, CA

Very low today, mostly grass pollen.

Last updated October 14, 2026

Today's index1out of 5Very Low
TreeNone
GrassVery Lowoff-season
WeedVery Lowoff-season

Driving it today

SyagrusSyagrusJacarandaJacarandaLiquidambarLiquidambarPrunusPrunusLophostemonLophostemon

Forecast

Thu
1
Fri
1
Sat
1
Sun
1

About pollen in Santa Ana

Pollen levels in Santa Ana remain quiet today. Tree pollen is absent entirely, while grass and weed pollen are both present only in trace amounts. For most people, this means little to no irritation, though those with heightened sensitivity might notice a faint effect from the grass or weed pollen in the air. Looking ahead, conditions are expected to hold steady over the next several days, with grass and weed pollen continuing at these same low levels and tree pollen staying absent. This lull fits the season — local trees such as Syagrus, Jacaranda, Liquidambar, Prunus, and Lophostemon typically release their pollen in spring, so it makes sense that tree activity is dormant now. Grass and weed pollen, including ragweed-type sources common in early fall, are also winding down this time of year, making for a generally easy stretch for allergy sufferers.

What to do today

  • Pollen levels are very low right now. It's a great day to enjoy the outdoors!

Tree map

Every dot is a tree near Santa Ana, colored by how allergenic it is. Click one for its details, and zoom in for a closer look.

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Top tree-pollen sources

The local tree genera behind today's pollen near Santa Ana. Each bar is that genus's share of the tree pollen.

67 pollen-relevant trees nearby drive today's tree-pollen reading.

Meet the trees near you

Get to know the tree types growing around Santa Ana: what each looks like, how allergenic it is, and when it blooms.

Canary island pine

Canary island pine

Pinus canariensis

Allergenicity 1/4Blooms spring
Ornamental pear

Ornamental pear

Pyrus calleryana

Allergenicity 1/4Blooms spring
Aristocrat pear

Aristocrat pear

Pyrus calleryana

Allergenicity 1/4Blooms spring
Afghan pine

Afghan pine

Pinus eldarica

Allergenicity 1/4Blooms spring
California sycamore

California sycamore

Platanus racemosa

Allergenicity 4/4Blooms spring
Evergreen pear

Evergreen pear

Pyrus kawakamii

Allergenicity 1/4Blooms spring
Holly oak

Holly oak

Quercus ilex

Allergenicity 4/4Blooms spring
Aleppo pine

Aleppo pine

Pinus halepensis

Allergenicity 1/4Blooms spring
Italian stone pine

Italian stone pine

Pinus pinea

Allergenicity 1/4Blooms spring
Leaf plum purple

Leaf plum purple

Prunus cerasifera

Allergenicity 1/4Blooms spring
London plane

London plane

Platanus acerifolia

Allergenicity 4/4Blooms spring
Shamel ash

Shamel ash

Fraxinus uhdei

Allergenicity 4/4Blooms spring
American sweetgum

American sweetgum

Liquidambar styraciflua

Allergenicity 2/4Blooms spring
Hollywood juniper

Hollywood juniper

Juniperus chinensis

Allergenicity 5/4Blooms winter,spring
White alder

White alder

Alnus rhombifolia

Allergenicity 4/4Blooms winter,spring
Olive

Olive

Olea europaea

Allergenicity 5/4Blooms spring,summer

Common questions

What is the pollen count in Santa Ana, CA today?
Santa Ana, CA is at a very low 1 out of 5 on the Universal Pollen Index today, driven mainly by grass pollen. The five-day outlook holds steady around 1 of 5.
Is grass pollen high in Santa Ana, CA right now?
Grass pollen is very low today at 1 of 5, and it's past its peak season. Most people won't notice it.
What plants are causing allergies in Santa Ana, CA?
The main sources right now are Syagrus, Jacaranda, Liquidambar, Prunus, and Lophostemon.