
Canary island pine
Pinus canariensis
Very low today, mostly weed pollen.
Last updated August 15, 2026
Pollen levels around Costa Mesa are quiet today. Weed pollen is present but only at a very low level, while tree pollen is absent altogether. For most people, this means little to no irritation, and even those with sensitivities should notice minimal impact outdoors. Looking ahead, weed pollen is expected to hold steady at this same low level through the next several days, so no significant change is on the way. Tree pollen typically peaks in spring for local species like Tristaniopsis, Washingtonia, and Phoenix palms, and with summer underway, those trees are largely dormant in terms of pollen output. As late summer approaches, weed pollen may gradually become more relevant, but for now conditions remain calm and easy to manage.
Every dot is a tree near Costa Mesa, colored by how allergenic it is. Click one for its details, and zoom in for a closer look.
The local tree genera behind today's pollen near Costa Mesa. Each bar is that genus's share of the tree pollen.
45 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around Costa Mesa: what each looks like, how allergenic it is, and when it blooms.

Canary island pine
Pinus canariensis

Evergreen pear
Pyrus kawakamii

Ornamental pear
Pyrus calleryana

London plane
Platanus acerifolia

Arizona ash
Fraxinus velutina

American sweetgum
Liquidambar styraciflua

Leaf plum purple
Prunus cerasifera

Peach
Prunus persica

Italian stone pine
Pinus pinea

Japanese black pine
Pinus thunbergii

Chinese elm
Ulmus parvifolia

Olive
Olea europaea

Silver maple
Acer saccharinum

Chinese juniper
Juniperus chinensis

Italian cypress
Cupressus sempervirens

Shamel ash
Fraxinus uhdei