Fredrikstad pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in Fredrikstad is high; cypress and grass are high; birch is low. Tomorrow (26 June 2026) levels are similar - cypress remains high, grass remains high. Over the following five days birch and grass will increase; cypress will decrease. 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

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

Fredrikstad's coastal setting on the Oslofjord and the Glomma River delta features birch, oak, and alder as the main tree pollen sources in parks and along streets, with exposure varying between green areas and the more built-up city centre. Surrounding Østfold farmland and coastal woodland contribute substantial tree and grass pollen, while the fjord and river delta position channels airflows across the city.

Today - 25 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    Low

    6/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    High

    69/100

  • Grass (Poaceae):

    High

    63/100

  • 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):

    High

    58/100

  • Grass (Poaceae):

    High

    55/100

  • Willow (Salicaceae):

    None

    0/100

Pollen and air quality along routes in Fredrikstad

Alby Gård parkrun

Frequently Asked Questions

Is pollen high in Fredrikstad right now?

On 25 June 2026, overall pollen levels in Fredrikstad are high. Cypress is the main contributor to airborne pollen, while grass and birch remain at lower levels

Will pollen levels change in Fredrikstad tomorrow?

On 26 June 2026, pollen conditions in Fredrikstad will be different from today, with cypress at high levels, grass at high levels

Is pollen expected to decrease in Fredrikstad this week?

According to the five-day outlook, cypress pollen levels are expected to gradually decrease, while birch and grass pollen will increase, suggesting mixed conditions later in the week.

Which pollen types are currently active in Fredrikstad?

On 25 June 2026, Cypress is the dominant pollen source in Fredrikstad. grass and birch are also present but at lower levels. willow, alder, and hazel are not currently active.

When is pollen season in Fredrikstad?
Fredrikstad's pollen season runs from February through August, opening with alder and hazel from February before birch peaks strongly through May. Grass follows through June and July. The Glomma River delta and Oslofjord position mean coastal and river influences moderate pollen dispersal, while surrounding Østfold farmland contributes substantial grass pollen. The Atlantic-influenced climate means frequent rainfall provides regular interruptions throughout.
How often is the Fredrikstad pollen forecast updated?

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

Does pollen in Fredrikstad 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 Fredrikstad 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 Fredrikstad, 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 Kristiansand Oslo Sandefjord Sandvika Stavanger Trondheim

Check pollen in other popular cities:

Sydney Rio de Janeiro Copenhagen Paris Athens Denpasar Rome Cape Town Barcelona London Los Angeles New York

Data provided by Airmine — Last update: 25 Jun 2026, 09:01 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for Fredrikstad.

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.