Walthamstow pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Walthamstow is low; grass and mugwort are low. Tomorrow (17 July 2026) levels are similar - mugwort 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?

Grass pollen from surrounding Waltham Forest fields is significant through the summer months, carried in by onshore breezes. On top of that, oak and beech are the two species driving most tree pollen in Walthamstow, especially around parks and green corridors. Seasonal peaks tend to track the wider regional pattern, tree pollen leading in spring and grass through summer.

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

    4/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    3/100

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

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    2/100

Air quality in Walthamstow

View air quality

Frequently Asked Questions

Is pollen high in Walthamstow right now?

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

Will pollen levels change in Walthamstow tomorrow?

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

Is pollen expected to decrease in Walthamstow 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 Walthamstow?

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

When is pollen season in Walthamstow?
Pollen season in Walthamstow really gets going with oak, followed not long after by beech. Oak tends to release pollen between April and May, and beech keeps things going from April right through to May. Don't forget grass, either — it runs May to September and usually causes the most trouble in June and July. Worth keeping an eye on the forecast if you're sensitive.
How often is the Walthamstow pollen forecast updated?

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

Does pollen in Walthamstow 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 Walthamstow 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 Walthamstow, 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 Walthamstow.

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.