Very Low Pollen in San Jose, CA

About pollen in San Jose

Pollen levels around San Jose are quiet today. Tree pollen is essentially absent, and weeds are contributing only a very light presence in the air. Overall, this adds up to a low-impact day for most people, with little reason to expect noticeable symptoms even among those who are sensitive to pollen. Looking ahead, tree pollen should remain a non-issue, which fits the season — local varieties like plane, maple, podocarpus, eucalyptus, and pittosporum typically release most of their pollen back in spring and are largely finished for now. Weed pollen, on the other hand, is expected to inch upward slightly over the next several days, a normal shift as late summer moves toward the start of the fall ragweed and weed season. The increase looks gradual for now, so conditions should stay generally mild through 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 San Jose, 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 Jose. 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 Jose: what each looks like, how allergenic it is, and when it blooms.

Cypress

Cupressus sempervirens

Allergenicity 4/4Blooms winter,spring

Zelkova

Zelkova serrata

Allergenicity 2/4Blooms spring

Sweetgum

Liquidambar styraciflua

Allergenicity 2/4Blooms spring

Plane

Platanus acerifolia

Allergenicity 4/4Blooms spring

Ash

Fraxinus uhdei

Allergenicity 4/4Blooms spring

Cherry

Prunus cerasifera

Allergenicity 1/4Blooms spring

Ginkgo

Ginkgo biloba

Allergenicity 1/4Blooms spring

Pine

Pinus canariensis

Allergenicity 1/4Blooms spring

Juniper

Juniperus chinensis

Allergenicity 5/4Blooms winter,spring

Ash

Fraxinus angustifolia

Allergenicity 4/4Blooms spring

Elm

Ulmus parvifolia

Allergenicity 3/4Blooms spring

Oak

Quercus suber

Allergenicity 4/4Blooms spring

Oak

Quercus ilex

Allergenicity 4/4Blooms spring

Oak

Quercus agrifolia

Allergenicity 4/4Blooms spring

Hackberry

Celtis sinensis

Allergenicity 3/4Blooms spring

Mulberry

Morus

Allergenicity 5/4Blooms spring

Common questions

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

San Jose, CA is at a very low 1 out of 5 on the Universal Pollen Index today, driven mainly by weed pollen. Over the next five days it ranges from 1 to 2 of 5.

Is weed pollen high in San Jose, 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 Jose, CA?

The main sources right now are Plane, Maple, Podocarpus, Eucalyptus, and Pittosporum.