Very Low Pollen in San Leandro, CA

About pollen in San Leandro

Pollen levels in San Leandro are quiet today. Weeds are giving off only a very low amount, tree pollen is essentially absent, and overall conditions are about as mild as they get. Most people, including those with sensitivities, should notice little to nothing in the air today. Looking ahead, this calm pattern should hold steady through the next several days, with weed pollen staying at a low, background level and no meaningful tree pollen expected. This tracks with the season — local trees such as pear, sweetgum, apple, mimosa, and hawthorn have long finished their spring release, and late summer typically means quiet skies for tree pollen while weeds contribute the small amount of activity that's around.

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 San Leandro, colored by how allergenic it is. Click one for its details, and zoom in for a closer look.

Top tree-pollen sources

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

Meet the trees near you

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

Sweetgum

Liquidambar styraciflua

Allergenicity 2/4Blooms spring

Cherry

Prunus L.

Allergenicity 1/4Blooms spring

Pear

Pyrus calleryana

Allergenicity 1/4Blooms spring

Plane

Platanus acerifolia

Allergenicity 4/4Blooms spring

Ash

Fraxinus

Allergenicity 4/4Blooms spring

Pear

Pyrus kawakamii

Allergenicity 1/4Blooms spring

Oak

Quercus

Allergenicity 4/4Blooms spring

Maple

Acer L.

Allergenicity 3/4Blooms spring

Cypress

Cupressus

Allergenicity 4/4Blooms winter,spring

Hackberry

Celtis L.

Allergenicity 3/4Blooms spring

Ginkgo

Ginkgo biloba

Allergenicity 1/4Blooms spring

Cherry

Prunus serrulata

Allergenicity 1/4Blooms spring

Maple

Acer palmatum

Allergenicity 3/4Blooms spring

Elm

Ulmus parvifolia

Allergenicity 3/4Blooms spring

Locust

Robinia

Allergenicity 2/4Blooms spring

Ligustrum

Ligustrum

Allergenicity 2/4Blooms spring

Common questions

What is the pollen count in San Leandro, CA today?

San Leandro, 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 San Leandro, 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 San Leandro, CA?

The main sources right now are Pyrus, Liquidambar, Malus, Albizia, and Crataegus.