Very Low Pollen in Santa Rosa, CA

Very low today, mostly tree pollen.

Last updated July 28, 2026

Today's index1out of 5Very Low
TreeVery Low

Driving it today

OakQuercusCeltisCeltisSequoiaSequoiaSalixSalixPinePinus

Forecast

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About pollen in Santa Rosa

Pollen levels around Santa Rosa remain quiet today. Tree pollen is the only category showing any activity, and it sits at a very low level, so most people should notice little to nothing in the way of symptoms. Local trees such as oak, sequoia, willow, and pine are technically still releasing some pollen, but the amounts are minimal enough that sensitive individuals are unlikely to feel much effect. Looking ahead, conditions are expected to stay calm over the next several days, with tree pollen holding steady at this same low level. This fits the season, since summer typically brings a lull between the spring tree pollen surge and the grass and late-summer weed pollen that can pick up as the season progresses. For now, air quality with respect to pollen remains favorable, offering a bit of a breather before activity potentially rises again later in the season.

What to do today

  • Pollen is low today, so it's a good day for outdoor activities.
  • If you're sensitive, rinsing off after time outside still helps.

Tree map

Every dot is a tree near Santa Rosa, 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 Rosa. Each bar is that genus's share of the tree pollen.

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

  • OakQuercus85%
  • HackberryCeltis11%
  • Sequoia3%
  • WillowSalix1%
  • PinePinus0%

Meet the trees near you

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

Oak

Oak

Quercus

Allergenicity 4/4Blooms spring
Maple

Maple

Acer

Allergenicity 3/4Blooms spring
Sycamore

Sycamore

Platanus acerifolia

Allergenicity 4/4Blooms spring
Pear

Pear

Pyrus

Allergenicity 1/4Blooms spring
Pine

Pine

Pinus

Allergenicity 1/4Blooms spring
Plum

Plum

Prunus

Allergenicity 1/4Blooms spring
Hackberry

Hackberry

Celtis occidentalis

Allergenicity 3/4Blooms spring
Willow

Willow

Salix

Allergenicity 3/4Blooms spring
Walnut

Walnut

Juglans

Allergenicity 3/4Blooms spring
Alder

Alder

Alnus

Allergenicity 4/4Blooms winter,spring
Raywood ash

Raywood ash

Fraxinus oxycarpa

Allergenicity 4/4Blooms spring
Poplar

Poplar

Populus

Allergenicity 3/4Blooms spring
Sweetgum

Sweetgum

Liquidambar styraciflua

Allergenicity 2/4Blooms spring
Tree

Tree

 

Allergenicity 2/4Blooms spring
Pistache

Pistache

 

Allergenicity 2/4Blooms spring
Redwood

Redwood

Sequoia sempervirens

Allergenicity 2/4Blooms spring

Common questions

What is the pollen count in Santa Rosa, CA today?
Santa Rosa, CA is at a very low 1 out of 5 on the Universal Pollen Index today, driven mainly by tree pollen. The five-day outlook holds steady around 1 of 5.
Is tree pollen high in Santa Rosa, CA right now?
Tree pollen is very low today at 1 of 5. Most people won't notice it.
What plants are causing allergies in Santa Rosa, CA?
The main sources right now are Oak, Celtis, Sequoia, Salix, and Pine.