Colmenar Viejo pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in Colmenar Viejo is medium; grass is medium. Tomorrow (26 June 2026) levels are similar - grass increasing. 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

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

Colmenar Viejo's Sierra de Guadarrama foothills setting and the Manzanares River headwaters feature oak, pine, and ash as the main tree pollen sources, with the Guadarrama woodland and heathland particularly significant locally. Surrounding Madrid regional farmland extends grass pollen, while the elevated setting creates distinct pollen patterns compared to lower-lying areas of the Madrid metropolitan region.

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

    35/100

  • 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):

    None

    0/100

  • Grass (Poaceae):

    High

    54/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in Colmenar Viejo right now?

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

Will pollen levels change in Colmenar Viejo tomorrow?

On 26 June 2026, pollen conditions in Colmenar Viejo will be different from today, with grass increasing

Is pollen expected to decrease in Colmenar Viejo this week?

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

Which pollen types are currently active in Colmenar Viejo?

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

When is pollen season in Colmenar Viejo?
Colmenar Viejo's Sierra de Guadarrama foothills setting makes it one of the more tree-pollen-significant Madrid suburban locations. Hazel and pine open from February before oak peaks strongly through April. Grass from surrounding Madrid regional farmland peaks through May and June before mugwort and nettle extend exposure into September, while the elevated woodland setting produces more intense local tree pollen than lower metropolitan areas.
How often is the Colmenar Viejo pollen forecast updated?

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

Does pollen in Colmenar Viejo 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 Colmenar Viejo 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 Colmenar Viejo, 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 Spain?

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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 Colmenar Viejo.

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.