Guildford pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in Guildford is medium; grass is medium. Tomorrow (26 June 2026) levels are similar - grass increasing, cypress at low levels. Over the following five days cypress 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

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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Guildford's parks, including Stoke Park, and the River Wey corridor feature oak and ash as the main tree pollen sources, with exposure varying between these green areas and the more built-up town centre. Surrounding Surrey farmland and the heathland and woodland of the North Downs contribute substantial grass and tree pollen, while the Wey valley channels airflows and concentrates pollen under prevailing southwesterly winds.

Today - 25 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Medium

    50/100

  • Willow (Salicaceae):

    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 - 26 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    7/100

  • Grass (Poaceae):

    High

    61/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in Guildford right now?

On 25 June 2026, overall pollen levels in Guildford are moderate. Grass is the main contributor to airborne pollen

Will pollen levels change in Guildford tomorrow?

On 26 June 2026, pollen conditions in Guildford will be different from today, with cypress at low levels and grass increasing

Is pollen expected to decrease in Guildford this week?

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

Which pollen types are currently active in Guildford?

On 25 June 2026, Grass is the dominant pollen source in Guildford. cypress, willow, alder, birch, and hazel are not currently active.

When is pollen season in Guildford?
Guildford's pollen season opens with hazel and alder from late January, earlier than in northern UK cities due to the milder Surrey climate. Oak and ash follow through April and May, with grass peaking through June and July. The Wey valley channels airflows and concentrates pollen, while surrounding Surrey farmland and North Downs heathland extend grass and tree pollen into August under the dry southeast climate.
How often is the Guildford pollen forecast updated?

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

Does pollen in Guildford 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 Guildford 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 Guildford, 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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Check pollen in other popular cities:

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Data provided by Airmine — Last update: 25 Jun 2026, 09:00 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for Guildford.

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

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