Cheltenham pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Cheltenham is low; grass is low. Tomorrow (17 July 2026) levels are similar - grass remains low, cypress at low levels, mugwort at low levels. Over the following five days cypress and mugwort will increase; grass will decrease. 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.

Around Cheltenham, oak and birch are the dominant species behind local tree pollen, with counts higher near parks than in the centre. Local farmland and hedgerows nearby add meaningful grass pollen through late spring and summer, especially under onshore breezes. The relatively open, low-lying landscape lets pollen disperse readily across the area through the season.

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

    15/100

  • 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):

    Low

    6/100

  • Grass (Poaceae):

    Low

    23/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    6/100

Air quality in Cheltenham

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Frequently Asked Questions

Is pollen high in Cheltenham right now?

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

Will pollen levels change in Cheltenham tomorrow?

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

Is pollen expected to decrease in Cheltenham this week?

According to the five-day outlook, grass pollen levels are expected to gradually decrease, while artemisia and cypress pollen will increase, suggesting mixed conditions later in the week.

Which pollen types are currently active in Cheltenham?

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

When is pollen season in Cheltenham?
For Cheltenham, the season kicks off with oak and then hands things over to birch. Oak pollen typically runs from April to May, then birch carries on from March until May. Grass pollen then stretches from May into September, with the worst of it typically landing in June and July. Not a bad idea to stock up on antihistamines before it all kicks off.
How often is the Cheltenham pollen forecast updated?

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

Does pollen in Cheltenham 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 Cheltenham 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 Cheltenham, 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?

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 Cheltenham.

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.