Tonstad pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Tonstad is medium; mugwort is medium; cypress is low. Tomorrow (10 August 2026) levels are similar. Over the following five days cypress and mugwort will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
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Tonstad is a small Agder inland village in the Sira valley where birch, alder, and riverside vegetation are the main local pollen sources. The enclosed valley concentrates pollen under calm conditions, while the Sirafjord hydropower landscape contributes limited additional vegetation and the Atlantic-influenced southwestern Norwegian climate provides frequent rainfall interruptions. Birch peaks through April and May before grass contributes through June and July throughout.
Today - 9 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
Low
23/100
-
Grass (Poaceae):
None
0/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Medium
42/100
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 - 10 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
Low
5/100
-
Grass (Poaceae):
None
0/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Medium
28/100
Air quality in Tonstad
View air qualityFrequently Asked Questions
Is pollen high in Tonstad right now?
On 9 August 2026, overall pollen levels in Tonstad are moderate. Artemisia is the main contributor to airborne pollen, while cypress remain at lower levels
Will pollen levels change in Tonstad tomorrow?
On 10 August 2026, pollen conditions in Tonstad will be similar to today, with cypress at low levels, artemisia at medium levels
Is pollen expected to decrease in Tonstad this week?
According to the five-day outlook, cypress, grass, and artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Tonstad?
On 9 August 2026, Artemisia is the dominant pollen source in Tonstad. cypress are also present but at lower levels. grass, willow, and hazel are not currently active.
When is pollen season in Tonstad?
How often is the Tonstad pollen forecast updated?
The Tonstad pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Tonstad 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 Tonstad 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 Tonstad, 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?
Check pollen in other popular cities:
Data provided by Airmine — Last update: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Tonstad.
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Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.