Sussex pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Sussex is medium; grass is medium; ragweed is 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

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.

Sussex's Kennebecasis River valley setting features red maple, elm, and dairy-farm vegetation as pollen sources at this agricultural town known as New Brunswick's dairy centre.

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

    34/100

  • Oak (Quercus):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

  • Ragweed (Ambrosia):

    Low

    17/100

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 Sussex

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Frequently Asked Questions

Is pollen high in Sussex right now?

On 16 July 2026, overall pollen levels in Sussex are moderate. Grass is the main contributor to airborne pollen, while ambrosia remain at lower levels

Will pollen levels change in Sussex tomorrow?

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

Is pollen expected to decrease in Sussex this week?

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

Which pollen types are currently active in Sussex?

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

When is pollen season in Sussex?
Sussex sits amid dairy farmland in the Kennebecasis River valley, giving it an agricultural pollen season, with surrounding dairy farms driving a fairly strong grass and ragweed presence through late summer, layered onto a fairly typical spring tree bloom shaped by the valley's mixed Acadian forest cover.
How often is the Sussex pollen forecast updated?

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

Does pollen in Sussex 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 Sussex 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 Sussex, 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.

Check pollen in other popular cities:

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 Sussex.

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.