Borehamwood pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Borehamwood is low; grass is low. Tomorrow (17 July 2026) levels are similar. Over the following five days grass will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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Residents in Borehamwood dealing with hay fever usually point to oak and beech as the culprits, particularly in spring near parks and gardens. The stretch of open moorland nearby is a notable secondary source, feeding pollen into town whenever the wind shifts to the west. Hay fever sufferers here typically notice symptoms peaking in late spring, then again during the summer grass 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

    14/100

  • 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):

    None

    0/100

  • Grass (Poaceae):

    Low

    11/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

Air quality in Borehamwood

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Frequently Asked Questions

Is pollen high in Borehamwood right now?

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

Will pollen levels change in Borehamwood tomorrow?

On 17 July 2026, pollen conditions in Borehamwood will be similar to today, with grass at low levels

Is pollen expected to decrease in Borehamwood this week?

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

Which pollen types are currently active in Borehamwood?

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

When is pollen season in Borehamwood?
For Borehamwood, the season kicks off with oak and then hands things over to beech. Oak gets going around April and tapers off by May, then beech carries on from April until May. Then grass pollen takes the baton from May all the way to September, usually peaking in June and July — that's when most people really feel it. Something to plan around if pollen usually gets to you.
How often is the Borehamwood pollen forecast updated?

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

Does pollen in Borehamwood 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 Borehamwood 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 Borehamwood, 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 Borehamwood.

For long term forecasts and maps, see the Airmine app

Download on the App Store Get it on Google Play

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