San Antonio pollen forecast — Six Flags Fiesta Texas neighborhood

On 9 August 2026, overall pollen levels in San Antonio are low. Ambrosia is the main contributor to airborne pollen, while artemisia remain at lower levels

On 10 August 2026, pollen conditions in San Antonio will be similar to today, with ambrosia at low levels, artemisia at low levels

According to the five-day outlook, artemisia pollen levels are expected to gradually decrease, while ambrosia and grass pollen will increase, suggesting mixed conditions later in the week.

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

As a landmark within San Antonio, Six Flags Fiesta Texas follows the same seasonal pollen curve, opening with mountain cedar from December before oak and elm peaks during March. Grass pollen builds through April and May, and a long ragweed tail continues into October. Mild winters here allow mountain cedar to release large amounts of pollen well before spring, which shapes conditions at Six Flags Fiesta Texas much as it does elsewhere in San Antonio.

The San Antonio 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 San Antonio, 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.