Long Beach pollen forecast — St. Anthony HS's Baseball Diamond neighborhood

On 9 August 2026, overall pollen levels in Long Beach are moderate. Ambrosia is the main contributor to airborne pollen, while artemisia, cypress, and grass remain at lower levels

On 10 August 2026, pollen conditions in Long Beach will be similar to today, with ambrosia at medium levels, artemisia at medium levels, cypress at low levels, grass at low levels

According to the five-day outlook, ambrosia, artemisia, cypress, and grass pollen levels will increase later in the week.

On 9 August 2026, Ambrosia is the dominant pollen source in Long Beach. artemisia, cypress, and grass are also present but at lower levels.

St. Anthony HS's Baseball Diamond follows Long Beach's established pollen calendar, beginning with olive and acacia from January before eucalyptus extends the tree season through February. Grass follows, peaking through March and April, while sagebrush and mugwort extend exposure into early autumn. The Southern California Mediterranean climate advances the season, and onshore Pacific breezes can periodically disperse pollen, which shapes conditions at St. Anthony HS's Baseball Diamond much as it does elsewhere in Long Beach.

The Long Beach pollen forecast is updated four times daily. See the timestamp below for the most recent update.

Studies show that most pollen exposure (often 70–90%) comes from nearby sources, such as local trees and vegetation. A good pollen forecast therefore depends on accurately representing local vegetation. Pollen can travel long distances, but this usually matters only early in the season or during specific wind events.

Pollen data is often misunderstood. Most "pollen levels" are not real-time measurements, but forecasts.

Direct pollen measurements are typically delayed by 1-2 days because they require manual analysis. To show current conditions in Long Beach, modern forecasts combine recent measurements, weather data, and information about local vegetation.

This allows us to estimate pollen levels for today and the coming days, not just report the past.

Airmine’s atmospheric monitoring platform was developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team, using satellite and Earth observation technologies to improve emissions monitoring.