Holmestrand kommune pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Holmestrand kommune is high; cypress and grass are high. Tomorrow (17 July 2026) levels are similar - cypress declining, grass declining. Over the following five days cypress and grass will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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Lying along the western Oslofjord shore, Holmestrand opens the pollen season with hazel from January before birch peaks through April and May. Grass from surrounding farmland peaks through June and July before mugwort extends exposure into September. The Oslofjord position means onshore winds can periodically disperse pollen, while the mild coastal Vestfold climate advances the season slightly compared to more inland eastern Norwegian municipalities throughout.

Today - 16 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    High

    54/100

  • Grass (Poaceae):

    High

    53/100

  • 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):

    Medium

    45/100

  • Grass (Poaceae):

    Medium

    44/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

Air quality in Holmestrand kommune

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Frequently Asked Questions

Is pollen high in Holmestrand kommune right now?

On 16 July 2026, overall pollen levels in Holmestrand kommune are high. Grass is the main contributor to airborne pollen, while cypress remain at lower levels

Will pollen levels change in Holmestrand kommune tomorrow?

On 17 July 2026, pollen conditions in Holmestrand kommune will be different from today, with grass, cypress continuing to decline

Is pollen expected to decrease in Holmestrand kommune 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 Holmestrand kommune?

On 16 July 2026, Grass is the dominant pollen source in Holmestrand kommune. cypress are also present but at lower levels. willow, alder, artemisia, birch, and hazel are not currently active.

When is pollen season in Holmestrand kommune?
The annual pollen season around Holmestrand kommune is bookended by February and August, kicking off with alder and hazel around February, with birch soon overtaking as the main source which carries through May. Holmestrand kommune then sees grass pollen continue over June and July. With the mild, productive lowlands surrounding Holmestrand kommune, the local climate means conditions here can diverge a bit from the textbook national timeline.
How often is the Holmestrand kommune pollen forecast updated?

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

Does pollen in Holmestrand kommune 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 Holmestrand kommune 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 Holmestrand kommune, 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 Norway?

Bergen Drammen Fredrikstad Kristiansand Oslo Sandefjord Sandvika Stavanger Trondheim

Check pollen in other popular cities:

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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Holmestrand kommune.

For long term forecasts and maps, see the Airmine app

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