Saint Helens pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Saint Helens is high; mugwort is high. Tomorrow (10 August 2026) levels are similar. Over the following five days mugwort will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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In Saint Helens, rowan and birch dominate the local tree pollen picture, with parks and tree-lined residential streets offering more exposure than the compact centre. Fields and hedgerows just outside town push grass pollen counts up noticeably once northwesterly winds off the coast set in. This mix of urban and rural influence gives Saint Helens a fairly typical pollen pattern for the wider region.
Today - 9 August
-
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):
High
61/100
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 - 10 August
-
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):
High
58/100
Air quality in Saint Helens
View air qualityFrequently Asked Questions
Is pollen high in Saint Helens right now?
On 9 August 2026, overall pollen levels in Saint Helens are high. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Saint Helens tomorrow?
On 10 August 2026, pollen conditions in Saint Helens will be similar to today, with artemisia at high levels
Is pollen expected to decrease in Saint Helens 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 Saint Helens?
On 9 August 2026, Artemisia is the dominant pollen source in Saint Helens. willow, hazel, cypress, and grass are not currently active.
When is pollen season in Saint Helens?
How often is the Saint Helens pollen forecast updated?
The Saint Helens pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Saint Helens 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 Saint Helens 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 Saint Helens, 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: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Saint Helens.
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Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.