Lohja pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Lohja is high; mugwort is high; cypress is medium; grass is low. Tomorrow (10 August 2026) levels are similar - cypress remains medium, mugwort declining. Over the following five days cypress, grass, and mugwort will increase. 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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In Uusimaa, Lohja lies amid forested lake terrain west of Helsinki; local vegetation is dominated by birch and willow, and grass pollen from the wider countryside pushes totals higher as spring turns to summer. Exposure differs meaningfully between the town centre and its greener edges, with the surrounding Uusimaa land contributing an additional, steadier layer of grass pollen through the warmer months.
Today - 9 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
Medium
50/100
-
Grass (Poaceae):
Low
21/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
High
59/100
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):
Medium
27/100
-
Grass (Poaceae):
None
0/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Medium
39/100
Air quality in Lohja
View air qualityFrequently Asked Questions
Is pollen high in Lohja right now?
On 9 August 2026, overall pollen levels in Lohja are high. Artemisia is the main contributor to airborne pollen, while cypress and grass remain at lower levels
Will pollen levels change in Lohja tomorrow?
On 10 August 2026, pollen conditions in Lohja will be different from today, with cypress at medium levels and artemisia continuing to decline
Is pollen expected to decrease in Lohja 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 Lohja?
On 9 August 2026, Artemisia is the dominant pollen source in Lohja. cypress and grass are also present but at lower levels. willow and hazel are not currently active.
When is pollen season in Lohja?
How often is the Lohja pollen forecast updated?
The Lohja pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Lohja 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 Lohja 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 Lohja, 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 Finland?
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 Lohja.
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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.