Seaside pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Seaside is low; grass and ragweed are low. Tomorrow (17 July 2026) levels are similar. 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.

For long term forecasts and maps, see the Airmine app

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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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Seaside's coastal setting on the Monterey Bay features oak, pine, and eucalyptus 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 coastal grassland and the Fort Ord natural reserve contribute substantial grass and scrub pollen, while strong onshore Pacific winds frequently disperse urban pollen across the Monterey Peninsula.

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):

    Low

    5/100

  • Oak (Quercus):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Low

    1/100

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):

    None

    0/100

  • Oak (Quercus):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    None

    0/100

Air quality in Seaside

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Frequently Asked Questions

Is pollen high in Seaside right now?

On 16 July 2026, overall pollen levels in Seaside are low. Ambrosia is the main contributor to airborne pollen, while grass remain at lower levels

Will pollen levels change in Seaside tomorrow?

On 17 July 2026, pollen conditions in Seaside will be similar to today with no significant pollen expected.

Is pollen expected to decrease in Seaside this week?

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

Which pollen types are currently active in Seaside?

On 16 July 2026, Ambrosia is the dominant pollen source in Seaside. grass are also present but at lower levels. alder, artemisia, birch, cypress, oak, and willow are not currently active.

When is pollen season in Seaside?
Seaside's pollen season in California opens with acacia and pine from January in the mild Monterey Bay coastal climate. Oak and grass follow through March and April, with the season peaking earlier than most US cities. Strong onshore Pacific winds characteristic of the Monterey Peninsula frequently disperse urban pollen, keeping coastal exposure lower than in sheltered inland areas. The dry summer largely suppresses mid-season pollen.
How often is the Seaside pollen forecast updated?

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

Does pollen in Seaside 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 Seaside 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 Seaside, 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?

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Data provided by Airmine — Last update: 16 July 2026 at 05:36 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Seaside.

For long term forecasts and maps, see the Airmine app

Download on the App Store Get it on Google Play

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