Trollhättan pollen forecast - today, tomorrow and the week ahead
Today (25 June) pollen in Trollhättan 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 cypress and grass will decrease; birch will remain stable. 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
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Trollhättan's parks and the Göta River corridor feature birch, oak, and alder as the main tree pollen sources, with exposure varying between these green areas and the more built-up city centre. Surrounding Västergötland farmland and woodland contribute substantial tree and grass pollen, while the Göta River valley channels airflows and connects Trollhättan to the broader Gothenburg metropolitan pollen landscape under prevailing westerly winds.
Today - 25 June
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
Low
8/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
High
67/100
-
Grass (Poaceae):
High
60/100
-
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
65/100
-
Grass (Poaceae):
High
59/100
-
Willow (Salicaceae):
None
0/100
Frequently Asked Questions
Is pollen high in Trollhättan right now?
On 25 June 2026, overall pollen levels in Trollhättan are high. Cypress is the main contributor to airborne pollen, while grass and birch remain at lower levels
Will pollen levels change in Trollhättan tomorrow?
On 26 June 2026, pollen conditions in Trollhättan will be different from today, with cypress at high levels, grass at high levels
Is pollen expected to decrease in Trollhättan this week?
According to the five-day outlook, cypress and grass pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Trollhättan?
On 25 June 2026, Cypress is the dominant pollen source in Trollhättan. grass and birch are also present but at lower levels. willow, alder, and hazel are not currently active.
When is pollen season in Trollhättan?
How often is the Trollhättan pollen forecast updated?
The Trollhättan pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Trollhättan 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 Trollhättan 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 Trollhättan, 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 Sweden?
Check pollen in other popular cities:
Data provided by Airmine — Last update: 25 Jun 2026, 09:00 CET (Data is updated four times daily.)
This page provides the latest public pollen forecast for Trollhättan.
For long term forecasts and maps, see the Airmine app
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.