Heemskerk pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Heemskerk is high; mugwort is high; grass is low. Tomorrow (10 August 2026) levels are similar - mugwort remains high. Over the following five days grass and 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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Local tree pollen in Heemskerk traces mainly to oak, birch, and linden in parks and gardens, with the leafier outskirts typically seeing higher counts than the compact centre. Given Heemskerk's standing as a commuter town near the coast, the North Sea Canal and nearby Noord-Holland farmland add noticeably to grass and tree pollen levels.
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):
Low
25/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
High
70/100
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
55/100
Air quality in Heemskerk
View air qualityFrequently Asked Questions
Is pollen high in Heemskerk right now?
On 9 August 2026, overall pollen levels in Heemskerk are high. Artemisia is the main contributor to airborne pollen, while grass remain at lower levels
Will pollen levels change in Heemskerk tomorrow?
On 10 August 2026, pollen conditions in Heemskerk will be different from today, with artemisia at high levels
Is pollen expected to decrease in Heemskerk this week?
According to the five-day outlook, artemisia and grass pollen levels will increase later in the week.
Which pollen types are currently active in Heemskerk?
On 9 August 2026, Artemisia is the dominant pollen source in Heemskerk. grass are also present but at lower levels. willow, hazel, and cypress are not currently active.
When is pollen season in Heemskerk?
How often is the Heemskerk pollen forecast updated?
The Heemskerk pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Heemskerk 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 Heemskerk 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 Heemskerk, 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 Netherlands?
Check pollen in other popular cities:
Data provided by Airmine — Last update: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Heemskerk.
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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.