Hämeenlinna Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Hämeenlinna is low; mold (cladosporium) is low.
Pollen Tomorrow
Tomorrow (11 October 2026) levels are similar to today.
7-Day Trend
Over the next week mold (alternaria) and mold (cladosporium) will increase; cypress, grass, willow, and mugwort will remain stable.
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Pollen Risk
Today - 10 October
| Pollen species | Level | Value |
|---|---|---|
| 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) | None | 0/100 |
| Mold (Alternaria) | None | 0/100 |
| Mold (Cladosporium) | Low | 2/100 |
Tomorrow - 11 October
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| 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) | None | 0/100 | |
| Mold (Alternaria) | None | 0/100 | |
| Mold (Cladosporium) | Low | 4/100 |
Local Environmental Conditions
Around 45% of the area near the center of Hämeenlinna is built-up land, with a good deal of woodland and some open water. Close to a lake or pond, lakeside trees such as willow, poplar and alder contribute to what is in the air. Birch, willow and alder are among the allergenic trees nearby. Grasses are a major source, with pigweed and mugwort adding to the weed pollen load.
The pollen year starts in early spring, when alder flowers. Tree pollen peaks in late spring, when the weather warms to around 10°C and birch and willow are in full flower. Grass pollen follows, peaking in early summer and easing off by midsummer. Later, pigweed and mugwort keep weed pollen in the air from midsummer into mid-fall. Warm, damp weather through summer also raises mold spore levels.
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Frequently Asked Questions About Pollen in Kanta-Häme
Is pollen high in Hämeenlinna right now?
Currently, there is no significant pollen in Hämeenlinna.
Will pollen levels change in Hämeenlinna tomorrow?
On 11 October 2026, pollen conditions in Hämeenlinna will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Hämeenlinna this week?
According to the five-day outlook, pollen levels are expected to remain relatively stable.
Which pollen types are currently active in Hämeenlinna?
On 10 October 2026, there are no significant pollen types in Hämeenlinna.
When is pollen season in Hämeenlinna?
How often is the Hämeenlinna pollen forecast updated?
The Hämeenlinna pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Hämeenlinna 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 Hämeenlinna 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 Hämeenlinna, 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.
Understanding the Scale
The 0–100 pollen scores represent risk levels, not direct pollen measurements. Higher scores indicate higher risk.
Pollen
| None | 0 | No or negligible risk of exposure. Pollen/mold exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen or mold spores may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen/mold exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen/mold exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen/mold exposure is expected to be at or near its highest levels. |
Get More in the Airmine Pollen app
Get 15-day pollen forecasts with morning, afternoon and evening detail, plus 5-day air quality forecasts. Explore interactive pollen risk maps, estimated pollen season start, route profiles and a symptoms diary.
Features and forecast availability vary by region. Currently covering Europe, the contiguous US, southern Canada, South Africa, Australia, Indonesia (Java & Bali), Brazil, Paraguay, Uruguay and the Buenos Aires area.
Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS).
