Borgheim pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Borgheim is none
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week cypress, grass, willow, and mugwort will remain stable.
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Features and forecast availability vary by region.
Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Alder (Alnus) | None | 0/100 |
| Birch (Betula) | None | 0/100 |
| Hazel (Corylus) | None | 0/100 |
| Cypress (Cupressaceae) | None | 0/100 |
| Grass (Poaceae) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Alder (Alnus) | None | 0/100 | — |
| Birch (Betula) | None | 0/100 | — |
| Hazel (Corylus) | None | 0/100 | — |
| Cypress (Cupressaceae) | None | 0/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | |
| Mugwort (Artemisia) | None | 0/100 |
Local Environmental Conditions
Borgheim is a small Vestfold village in Nøtterøy municipality on the Nøtterøy island in the Oslofjord where birch, hazel, and coastal woodland are the main local pollen sources. The Oslofjord island position means onshore winds can periodically disperse pollen, while the mild coastal Vestfold climate advances the season slightly compared to inland eastern Norway and birch peaks through April and May before grass contributes through June and July and mugwort extends into September.
Borgheim moves through a pollen season that is bookended by February and August, led in by alder and hazel picking up from February, with birch then climbing to its main peak which carries through May. From there, grass pollen continues through June and July. With the gentler climate typical of the inner Oslofjord region, the local climate means local conditions can matter as much as the calendar month itself.
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Frequently Asked Questions About Pollen in Vestfold
Is pollen high in Borgheim right now?
Currently, there is no significant pollen in Borgheim.
Will pollen levels change in Borgheim tomorrow?
On 21 September 2026, pollen conditions in Borgheim will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Borgheim this week?
According to the five-day outlook, pollen levels are expected to remain relatively stable.
Which pollen types are currently active in Borgheim?
On 20 September 2026, there are no significant pollen types in Borgheim.
When is pollen season in Borgheim?
How often is the Borgheim pollen forecast updated?
The Borgheim pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Borgheim 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 Borgheim 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 Borgheim, 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.
Understanding the Scale
The 0–100 scores represent risk levels, not direct measurements of pollen or air pollutant concentrations. Higher scores indicate higher risk. Pollen and air quality use different thresholds.
Pollen
| None | 0 | No or negligible risk of exposure. Pollen/mold exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen or mold spores may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen/mold exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen/mold exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen/mold exposure is expected to be at or near its highest levels. |
Get More in the Airmine Pollen app
Get 15-day pollen forecasts with morning, afternoon and evening detail, plus 5-day air quality forecasts. Explore interactive pollen risk maps, estimated pollen season start, route profiles and a symptoms diary.
Features and forecast availability vary by region. Currently covering Europe, the contiguous US, southern Canada, South Africa, Australia, Indonesia (Java & Bali), Brazil, Paraguay, Uruguay and the Buenos Aires area.
Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS).
