
Sweet gum
Liquidambar styraciflua
Low today, mostly grass pollen.
Last updated July 1, 2026
Pollen levels across San Diego are modest today, with both tree and grass categories sitting in the Low range and the overall index at 2 (Low). Grass is the type to keep an eye on, as late spring into early summer is its typical season, while lingering tree contributions from species like Jacaranda, Podocarpus, Cupaniopsis, Syagrus, and Syzygium remain limited. The grass forecast points to easing conditions, slipping from Low today to even lower readings over the next several days. With tree pollen past its spring peak and ragweed still well ahead of its late-summer window, overall exposure should stay light. Expect a quiet stretch for sensitive individuals heading into the coming days.
Every dot is a tree near San Diego, 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 San Diego. Each bar is that genus's share of the tree pollen.
1,020 pollen-relevant trees nearby drive today's tree-pollen reading.
Get to know the tree types growing around San Diego: what each looks like, how allergenic it is, and when it blooms.

Sweet gum
Liquidambar styraciflua

Pine
Pinus

Ash
Fraxinus

California sycamore
Platanus racemosa

Italian cypress
Cupressus sempervirens

Purple leaf plum
Prunus cerasifera

Juniper
Juniperus chinensis

Chinese elm
Ulmus parvifolia

Evergreen pear
Pyrus kawakamii

Bradford pear
Pyrus calleryana

Fruit tree
Prunus persica

Siberian elm
Ulmus pumila

Olive fruitless
Olea

Holly oak
Quercus ilex

Canary island pine
Pinus canariensis

Coast live oak
Quercus agrifolia