Chichester pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Chichester is medium; grass is medium. Tomorrow (17 July 2026) levels are similar - grass declining. Over the following five days grass 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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Chichester's parks and green spaces feature plane and lime as the main tree pollen sources, with exposure varying between these greener areas and the more built-up town centre. The wider West Sussex countryside supplies additional tree and grass pollen, particularly when cooler northerly winds carry it toward the built-up area. Overall exposure follows the broader regional trend, moderated somewhat by the town's parks and gardens.

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):

    Medium

    27/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    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

    21/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

Air quality in Chichester

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Frequently Asked Questions

Is pollen high in Chichester right now?

On 16 July 2026, overall pollen levels in Chichester are moderate. Grass is the main contributor to airborne pollen

Will pollen levels change in Chichester tomorrow?

On 17 July 2026, pollen conditions in Chichester will be different from today, with grass continuing to decline

Is pollen expected to decrease in Chichester this week?

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

Which pollen types are currently active in Chichester?

On 16 July 2026, Grass is the dominant pollen source in Chichester. cypress, willow, alder, artemisia, birch, and hazel are not currently active.

When is pollen season in Chichester?
Ask anyone with allergies in Chichester and they'll tell you it's plane and lime that cause the trouble. You'll usually see plane pollen from around April through June, while lime follows on from May to July. After that, grass pollen carries the season from May through to September, with June and July normally the toughest stretch. Worth factoring in if hay fever's ever been an issue for you here.
How often is the Chichester pollen forecast updated?

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

Does pollen in Chichester 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 Chichester 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 Chichester, 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 Kingdom?

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Check pollen in other popular cities:

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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 Chichester.

For long term forecasts and maps, see the Airmine app

Download on the App Store Get it on Google Play

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