Port Arthur pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Port Arthur is low; grass and ragweed are low. Tomorrow (10 August 2026) levels are similar - grass increasing, ragweed increasing. Over the following five days grass and ragweed will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Port Arthur's coastal setting on Sabine Lake features oak, pine, and introduced palm as the main tree pollen sources in parks and along streets, with exposure varying between these green areas and the more built-up city centre. Surrounding Southeast Texas coastal prairie and wetlands contribute substantial grass and reed pollen, while Gulf Coast onshore breezes can periodically disperse urban pollen across the area.
Today - 9 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Low
22/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
None
0/100
-
Ragweed (Ambrosia):
Low
22/100
High pollen levels may trigger sneezing, itchy eyes, and congestion. Airmine's neighbourhood estimates use satellites to map local vegetation and a statistical prediction model, updated four times daily.
Tomorrow - 10 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Medium
29/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
None
0/100
-
Ragweed (Ambrosia):
Medium
29/100
Air quality in Port Arthur
View air qualityPollen forecast for neighborhoods and landmarks in Port Arthur
Frequently Asked Questions
Is pollen high in Port Arthur right now?
On 9 August 2026, overall pollen levels in Port Arthur are low. Grass is the main contributor to airborne pollen, while ambrosia remain at lower levels
Will pollen levels change in Port Arthur tomorrow?
On 10 August 2026, pollen conditions in Port Arthur will be different from today, with grass, ambrosia increasing
Is pollen expected to decrease in Port Arthur this week?
According to the five-day outlook, artemisia, grass, and ambrosia pollen levels will increase later in the week.
Which pollen types are currently active in Port Arthur?
On 9 August 2026, Grass is the dominant pollen source in Port Arthur. ambrosia are also present but at lower levels. artemisia and cypress are not currently active.
When is pollen season in Port Arthur?
How often is the Port Arthur pollen forecast updated?
The Port Arthur pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Port Arthur come from nearby or far away?
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.
Are pollen levels in Port Arthur based on measurements or forecasts?
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 Port Arthur, 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.
Want to see pollen forecasts for other cities in United States?
Check pollen in other popular cities:
Data provided by Airmine — Last update: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Port Arthur.
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Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.