
Sweet gum
Liquidambar styraciflua
Very low today, mostly weed pollen.
Last updated August 14, 2026
Pollen levels around San Diego are quiet today. Tree pollen is absent, and weeds are contributing only a very light presence in the air. Overall, this is a low-impact day for most people, including those who usually notice seasonal pollen. Looking ahead, this calm pattern is expected to hold over the next several days, with weed pollen staying at a similarly low level and tree pollen remaining out of the picture. This fits the season well: local trees such as Cupaniopsis, Jacaranda, Magnolia, Podocarpus, and Syagrus typically release most of their pollen earlier in the year, so their absence now is expected. With grass season winding down and the peak of weed pollen, including ragweed, still ahead in the coming weeks, conditions should stay comfortable for now.
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