St. Augustine pollen forecast - today, tomorrow and the week ahead

On 9 August 2026, overall pollen levels in St. Augustine are moderate. Ambrosia is the main contributor to airborne pollen, while grass remain at lower levels

On 10 August 2026, pollen conditions in St. Augustine will be different from today, with grass at low levels, ambrosia at medium levels, artemisia at low levels

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

On 9 August 2026, Ambrosia is the dominant pollen source in St. Augustine. grass are also present but at lower levels. cypress and artemisia are not currently active.

St. Augustine's subtropical Florida setting produces an extended pollen season, with oak and pine contributing from January through spring. Grass pollen peaks through March and April, with a secondary peak after summer rains. The coastal position on the Atlantic means onshore breezes can periodically disperse pollen, while surrounding St. Johns County woodland and wetlands contribute substantial tree and grass pollen throughout the extended season.

The St. Augustine 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 St. Augustine, 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.