Very Low Pollen in Berkeley, CA

Very low today, mostly weed pollen.

Last updated August 14, 2026

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

Driving it today

AshFraxinusLiquidambarLiquidambarTristaniopsisTristaniopsisPittosporumPittosporumPrunusPrunus

Forecast

Sat
1
Sun
1
Mon
1
Tue
1

About pollen in Berkeley

Pollen counts around Berkeley are quiet today. Tree pollen is essentially absent, and weeds are only registering a very low presence, so most people should be able to go about outdoor plans without much concern. Even those with sensitive noses are unlikely to notice much in the air right now. Looking ahead, this calm pattern is expected to hold over the next several days, with weed pollen staying at a low, steady level and tree pollen remaining minimal. This tracks with the season: local trees such as ash, liquidambar, tristaniopsis, pittosporum, and prunus finished their main pollen release back in spring, and grass has largely wound down as well. With late summer underway, weeds are the main contributor to the pollen picture, though at these low levels they are not expected to cause much trouble in the near term.

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 Berkeley, 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 Berkeley. Each bar is that genus's share of the tree pollen.

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

Meet the trees near you

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

Plane

Plane

Platanus acerifolia

Allergenicity 4/4Blooms spring
Cherry

Cherry

Prunus L.

Allergenicity 1/4Blooms spring
Sweetgum

Sweetgum

Liquidambar styraciflua

Allergenicity 2/4Blooms spring
Pear

Pear

Pyrus calleryana

Allergenicity 1/4Blooms spring
Ash

Ash

Fraxinus

Allergenicity 4/4Blooms spring
Pear

Pear

Pyrus kawakamii

Allergenicity 1/4Blooms spring
Maple

Maple

Acer L.

Allergenicity 3/4Blooms spring
Ligustrum

Ligustrum

Ligustrum japonicum

Allergenicity 2/4Blooms spring
Hackberry

Hackberry

Celtis L.

Allergenicity 3/4Blooms spring
Cherry

Cherry

Prunus serrulata

Allergenicity 1/4Blooms spring
Maple

Maple

Acer macrophyllum

Allergenicity 3/4Blooms spring
Cypress

Cypress

Cupressus sempervirens

Allergenicity 4/4Blooms winter,spring
Maple

Maple

Acer rubrum

Allergenicity 3/4Blooms spring
Cypress

Cypress

Cupressus

Allergenicity 4/4Blooms winter,spring
Ligustrum

Ligustrum

Ligustrum lucidum

Allergenicity 2/4Blooms spring
Poplar

Poplar

Populus nigra

Allergenicity 3/4Blooms spring

Common questions

What is the pollen count in Berkeley, CA today?
Berkeley, CA is at a very low 1 out of 5 on the Universal Pollen Index today, driven mainly by weed pollen. The five-day outlook holds steady around 1 of 5.
Is weed pollen high in Berkeley, CA right now?
Weed 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 Berkeley, CA?
The main sources right now are Ash, Liquidambar, Tristaniopsis, Pittosporum, and Prunus.