Seattle pollen forecast — Chambers Bay – Championship Course neighborhood

Today (16 July) pollen in Chambers Bay – Championship Course, Seattle is none Tomorrow (17 July 2026) levels are similar - grass at low levels, ragweed at low levels. Over the following five days ragweed will increase; 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

Use our Strava plugin to check your own exposure.

Chambers Bay's Puget Sound Pierce County Washington setting features shore pine, fescue grass, and ocean spray as the main pollen sources across the links-style course, with exposure varying between the exposed Puget Sound-facing fairways and the more sheltered inland sections. The Puget Sound position means onshore winds can frequently disperse pollen, while the wet Pacific oceanic climate provides very frequent rainfall interruptions throughout the spring and summer season.

Today - 16 July

  • 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

  • Oak (Quercus):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    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 - 17 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Low

    19/100

  • Oak (Quercus):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Low

    8/100

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Frequently Asked Questions

Is pollen high in Seattle right now?

Currently, there is no significant pollen in Seattle.

Will pollen levels change in Seattle tomorrow?

On 17 July 2026, pollen conditions in Seattle will be different from today, with grass at low levels, ambrosia at low levels

Is pollen expected to decrease in Seattle this week?

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

Which pollen types are currently active in Seattle?

On 16 July 2026, there are no significant pollen types in Seattle.

When is pollen season in Seattle?
Chambers Bay – Championship Course tracks Seattle's broader pollen pattern, with alder and birch appearing from February with maple joining in and continuing through March and April. Grass pollen then peaks through May and June, and mugwort and nettle extend exposure into September. The damp, mild regional climate keeps pollen counts lower than in drier parts of the country, though spring rain events can trigger brief spikes, a defining feature of the local season.
How often is the Seattle pollen forecast updated?

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

Does pollen in Seattle 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 Seattle 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 Seattle, 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: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Chambers Bay – Championship Course, Seattle.

For long term forecasts and maps, see the Airmine app

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