Pismo Beach pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Pismo Beach is high; mugwort is high; ragweed is medium; cypress and grass are low. Tomorrow (10 August 2026) levels are similar - cypress remains low, grass remains low, ragweed remains medium, mugwort declining. Over the following five days cypress, grass, mugwort, and ragweed will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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Pismo Beach sits on dune country along the Central Coast, where the dominant vegetation is a mix of coastal dune scrub, Monterey cypress, and ice plant, shaping the local pollen profile across the seasons. Seasonal timing here follows the broader regional pattern typical of this part of the country. As with most of the region, counts tend to build gradually rather than spike overnight.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    9/100

  • Grass (Poaceae):

    Low

    19/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    High

    53/100

  • Ragweed (Ambrosia):

    Medium

    40/100

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):

    Low

    2/100

  • Grass (Poaceae):

    Low

    14/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    46/100

  • Ragweed (Ambrosia):

    Medium

    35/100

Air quality in Pismo Beach

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Frequently Asked Questions

Is pollen high in Pismo Beach right now?

On 9 August 2026, overall pollen levels in Pismo Beach are high. Artemisia is the main contributor to airborne pollen, while ambrosia, cypress, and grass remain at lower levels

Will pollen levels change in Pismo Beach tomorrow?

On 10 August 2026, pollen conditions in Pismo Beach will be different from today, with ambrosia at medium levels, cypress at low levels, grass at low levels and artemisia continuing to decline

Is pollen expected to decrease in Pismo Beach 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 Pismo Beach?

On 9 August 2026, Artemisia is the dominant pollen source in Pismo Beach. ambrosia, cypress, and grass are also present but at lower levels.

When is pollen season in Pismo Beach?
In Pismo Beach, pollen season begins with olive and acacia starting in January before eucalyptus peaks during February. Grass follows, peaking through March and April, while sagebrush and mugwort extend exposure into early autumn. Onshore Pacific breezes periodically clear the air, though inland valleys can still see elevated counts, a defining feature of the local season.
How often is the Pismo Beach pollen forecast updated?

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

Does pollen in Pismo Beach 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 Pismo Beach 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 Pismo Beach, 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.

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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 Pismo Beach.

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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.