Maarssen pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Maarssen is medium; grass is medium. 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.

For long term forecasts and maps, see the Airmine app

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

Use our Strava plugin to check your own exposure.

In Maarssen, tree pollen comes chiefly from oak, birch, and linden planted through parks and streets, and the split between built-up and green areas makes a real difference to exposure. As a riverside estate village, Maarssen also picks up grass and tree pollen from the Vecht river and the surrounding Utrecht farmland.

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):

    Medium

    35/100

  • 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):

    Medium

    32/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

Air quality in Maarssen

View air quality

Frequently Asked Questions

Is pollen high in Maarssen right now?

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

Will pollen levels change in Maarssen tomorrow?

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

Is pollen expected to decrease in Maarssen this week?

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

Which pollen types are currently active in Maarssen?

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

When is pollen season in Maarssen?
Pollen exposure in Maarssen gets underway in January courtesy of hazel and alder, climbs to a birch high point around April, and lasts until August. Through April and May, oak and ash add to the load, with grass then leading through June and into July. How pollen settles around Maarssen owes something to the Vecht river, with the country estates along the Vecht shaping conditions further.
How often is the Maarssen pollen forecast updated?

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

Does pollen in Maarssen 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 Maarssen 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 Maarssen, 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: 16 July 2026 at 05:36 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Maarssen.

For long term forecasts and maps, see the Airmine app

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