Port Arthur pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in Port Arthur is none Tomorrow (26 June 2026) levels are similar - cypress at low levels, grass at low levels. Over the following five days cypress and grass will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

For long term forecasts and maps, see the Airmine app

Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

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 - 25 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

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 - 26 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    3/100

  • Grass (Poaceae):

    Low

    3/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in Port Arthur right now?

Currently, there is no significant pollen in Port Arthur.

Will pollen levels change in Port Arthur tomorrow?

On 26 June 2026, pollen conditions in Port Arthur will be different from today, with cypress at low levels, grass at low levels

Is pollen expected to decrease in Port Arthur this week?

According to the five-day outlook, cypress and grass pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.

Which pollen types are currently active in Port Arthur?

On 25 June 2026, there are no significant pollen types in Port Arthur.

When is pollen season in Port Arthur?
Port Arthur's pollen season opens with cedar and oak from late January in the mild Gulf Coast climate. Grass pollen follows through March and April, with ragweed extending the season into October. The coastal position on Sabine Lake means Gulf Coast onshore breezes can periodically disperse pollen, while surrounding Southeast Texas coastal prairie and wetlands contribute substantial grass and reed pollen throughout the extended season.
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: 25 Jun 2026, 09:02 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for Port Arthur.

For long term forecasts and maps, see the Airmine app

Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.