Siljan kommune pollen forecast - today, tomorrow and the week ahead
Today (30 August) pollen in Siljan kommune is low; mugwort is low. Tomorrow (31 August 2026) levels are similar - mugwort remains low, grass at low levels. Over the following five days grass will increase; mugwort will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Lying in the Telemark landscape between Skien and Larvik, Siljan 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 inland Telemark valley concentrates pollen under calm conditions, while the continental climate produces a well-defined seasonal progression throughout.
Today - 30 August
-
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):
Low
16/100
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 - 31 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Low
1/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Low
16/100
Air quality in Siljan kommune
View air qualityFrequently Asked Questions
Is pollen high in Siljan kommune right now?
On 30 August 2026, overall pollen levels in Siljan kommune are low. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Siljan kommune tomorrow?
On 31 August 2026, pollen conditions in Siljan kommune will be different from today, with artemisia at low levels, grass at low levels
Is pollen expected to decrease in Siljan kommune this week?
According to the five-day outlook, artemisia pollen levels are expected to gradually decrease, while grass pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Siljan kommune?
On 30 August 2026, Artemisia is the dominant pollen source in Siljan kommune. hazel, cypress, grass, and willow are not currently active.
When is pollen season in Siljan kommune?
How often is the Siljan kommune pollen forecast updated?
The Siljan kommune pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Siljan 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 Siljan 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 Siljan 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?
Check pollen in other popular cities:
Data provided by Airmine — Last update: 30 August 2026 at 14:32 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Siljan kommune.
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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.
Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.