Croydon pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Croydon 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

Download on the App Store Get it on Google Play

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.

How to connect?

Tree pollen in Croydon comes mostly from sycamore and oak, with parks and mature gardens standing in contrast to the more built-up centre. The coastal fringe nearby is a notable secondary source, feeding pollen into town whenever the wind shifts to the south. This mix of urban and rural influence gives Croydon a fairly typical pollen pattern for the wider region.

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

    9/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    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):

    Low

    3/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

Air quality in Croydon

View air quality

Frequently Asked Questions

Is pollen high in Croydon right now?

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

Will pollen levels change in Croydon tomorrow?

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

Is pollen expected to decrease in Croydon 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 Croydon?

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

When is pollen season in Croydon?
Ask anyone with allergies in Croydon and they'll tell you it's sycamore and oak that cause the trouble. Grass pollen then stretches from May into September, with the worst of it typically landing in June and July. Sycamore gets going around April and tapers off by June, before oak takes over, usually April to May. Not a bad idea to stock up on antihistamines before it all kicks off.
How often is the Croydon pollen forecast updated?

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

Does pollen in Croydon 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 Croydon 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 Croydon, 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?

Birmingham Bristol Glasgow Leeds Liverpool London Manchester Portsmouth Sheffield Southampton

Check pollen in other popular cities:

Rio de Janeiro Copenhagen Athens Denpasar Rome Cape Town Barcelona London Los Angeles New York

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 Croydon.

For long term forecasts and maps, see the Airmine app

Download on the App Store Get it on Google Play

Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.