Grimsby pollen forecast - today, tomorrow and the week ahead

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

Grimsby's coastal parks and the Humber estuary 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 Lincolnshire farmland and the flat, open Humber floodplain contribute substantial grass and crop pollen, while onshore easterly winds from the North Sea can periodically disperse pollen across the coastal town.

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

    31/100

  • 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):

    Medium

    33/100

  • Grass (Poaceae):

    High

    70/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in Grimsby right now?

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

Will pollen levels change in Grimsby tomorrow?

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

Is pollen expected to decrease in Grimsby this week?

According to the five-day outlook, cypress and grass pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.

Which pollen types are currently active in Grimsby?

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

When is pollen season in Grimsby?
Grimsby's pollen season opens with hazel and alder from late January, earlier than in northern UK cities due to the milder East Anglian coastal climate. Oak and ash follow through April and May, with grass peaking through June and July. The flat Humber floodplain and surrounding Lincolnshire farmland extend substantial grass and crop pollen into August, while onshore North Sea winds can periodically interrupt exposure.
How often is the Grimsby pollen forecast updated?

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

Does pollen in Grimsby 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 Grimsby 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 Grimsby, 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, 09:02 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for Grimsby.

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.