Thornton Heath pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Thornton Heath is low; grass and mugwort are low. Tomorrow (17 July 2026) levels are similar - grass remains low. Over the following five days grass and mugwort 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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In Thornton Heath, oak and beech dominate the local tree pollen picture, with parks and tree-lined residential streets offering more exposure than the compact centre. The the river meadows nearby is a notable secondary source, feeding pollen into town whenever the wind shifts to the inland. 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):

    Low

    8/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    2/100

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

    2/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

Air quality in Thornton Heath

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Frequently Asked Questions

Is pollen high in Thornton Heath right now?

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

Will pollen levels change in Thornton Heath tomorrow?

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

Is pollen expected to decrease in Thornton Heath this week?

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

Which pollen types are currently active in Thornton Heath?

On 16 July 2026, Artemisia is the dominant pollen source in Thornton Heath. grass are also present but at lower levels. alder, birch, hazel, cypress, and willow are not currently active.

When is pollen season in Thornton Heath?
Ask anyone with allergies in Thornton Heath and they'll tell you it's oak and beech that cause the trouble. Oak gets going around April and tapers off by May, while beech follows on from April to May. Don't forget grass, either — it runs May to September and usually causes the most trouble in June and July. Worth factoring in if hay fever's ever been an issue for you here.
How often is the Thornton Heath pollen forecast updated?

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

Does pollen in Thornton Heath 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 Thornton Heath 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 Thornton Heath, 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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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 Thornton Heath.

For long term forecasts and maps, see the Airmine app

Download on the App Store Get it on Google Play

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