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

Today (16 July) pollen in Frogn kommune is medium; cypress and grass are medium. Tomorrow (17 July 2026) levels are similar. 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 inner Oslofjord shore south of Oslo, Frogn 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 coastal position means onshore winds can periodically disperse pollen, while the mild coastal 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):

    Medium

    38/100

  • Grass (Poaceae):

    Medium

    43/100

  • 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

    32/100

  • Grass (Poaceae):

    Medium

    37/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

Air quality in Frogn kommune

View air quality

Frequently Asked Questions

Is pollen high in Frogn kommune right now?

On 16 July 2026, overall pollen levels in Frogn kommune are moderate. Cypress is the main contributor to airborne pollen, while grass remain at lower levels

Will pollen levels change in Frogn kommune tomorrow?

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

Is pollen expected to decrease in Frogn kommune 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 Frogn kommune?

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

When is pollen season in Frogn kommune?
Across Frogn kommune, the pollen season runs its course from February to August, with an early alder and hazel signal starting around February, before birch pollen takes hold most strongly through to May. Grass pollen then carries the season through the June-July stretch. With the combination of city parkland and nearby farmland around Frogn kommune, the local climate means pollen levels here don't always follow the national pattern exactly.
How often is the Frogn kommune pollen forecast updated?

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

Does pollen in Frogn 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 Frogn 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 Frogn 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 05:36 CEST (Data is updated four times daily.)

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

For long term forecasts and maps, see the Airmine app

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