Sundsvall pollen forecast - today, tomorrow and the week ahead
Today (25 June) pollen in Sundsvall is high; cypress and grass are high; birch is low. Tomorrow (26 June 2026) levels are similar - cypress declining, grass declining. Over the following five days birch, cypress, and grass will increase. 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
Sundsvall's coastal setting on the Gulf of Bothnia features birch, pine, and alder as the main tree pollen sources in parks and along streets, with exposure varying between green areas and the more built-up city centre. Surrounding Medelpad boreal woodland and farmland contribute substantial tree and grass pollen, while the coastal position means onshore winds can periodically disperse pollen across the city.
Today - 25 June
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
Low
5/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
High
54/100
-
Grass (Poaceae):
High
54/100
-
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):
Medium
42/100
-
Grass (Poaceae):
Medium
42/100
-
Willow (Salicaceae):
None
0/100
Frequently Asked Questions
Is pollen high in Sundsvall right now?
On 25 June 2026, overall pollen levels in Sundsvall are high. Cypress is the main contributor to airborne pollen, while grass and birch remain at lower levels
Will pollen levels change in Sundsvall tomorrow?
On 26 June 2026, pollen conditions in Sundsvall will be different from today, with cypress, grass continuing to decline
Is pollen expected to decrease in Sundsvall this week?
According to the five-day outlook, birch, cypress, and grass pollen levels will increase later in the week.
Which pollen types are currently active in Sundsvall?
On 25 June 2026, Cypress is the dominant pollen source in Sundsvall. grass and birch are also present but at lower levels. alder, hazel, and willow are not currently active.
When is pollen season in Sundsvall?
How often is the Sundsvall pollen forecast updated?
The Sundsvall pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Sundsvall 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 Sundsvall 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 Sundsvall, 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, 09:01 CET (Data is updated four times daily.)
This page provides the latest public pollen forecast for Sundsvall.
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.