Helsinki Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (14 October) pollen in Helsinki is low; mold (alternaria) and mold (cladosporium) are low.
Pollen Tomorrow
Tomorrow (15 October 2026) levels are similar to today.
7-Day Trend
Over the next week mold (cladosporium) will decrease; grass, willow, mugwort, and mold (alternaria) will remain stable.
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Features and forecast availability vary by region.
Pollen Risk
Today - 14 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) | Low | 1/100 |
| Mold (Cladosporium) | Low | 5/100 |
Tomorrow - 15 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) | Low | 1/100 | |
| Mold (Cladosporium) | Low | 7/100 |
Local Environmental Conditions
Helsinki's pollen comes mostly from the birch forests that surround the city and fill its parks. Birch is the most important allergen in Finland, growing throughout the city, in Central Park and on the many islands along the coast. Alder grows along shorelines and woodland edges and is the first tree to flower in spring. Lawns, parks and the farmland of Uusimaa supply grass pollen, while mugwort grows in gardens, on roadsides and on wasteland. In some years, birch pollen also arrives from Estonia and Russia on southerly winds.
Helsinki's pollen season starts once the long, cold winter, averaging around -4°C in January, begins to ease. Alder flowers from late March or April, and birch follows in May, bringing the most intense pollen of the year, with counts that can be among the highest in Europe. Grass pollen usually peaks from mid-June to late July, when temperatures average around 18°C. Mugwort adds weed pollen in late July and August, and the pollen season in Helsinki is usually over by early September.
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Resource Hub
Sports venues in Helsinki 2 sports venues
Popular Local Routes 13 routes
Local parkruns 3 parkruns
Frequently Asked Questions About Pollen in Uusimaa
Is pollen high in Helsinki right now?
Currently, there is no significant pollen in Helsinki.
Will pollen levels change in Helsinki tomorrow?
On 15 October 2026, pollen conditions in Helsinki will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Helsinki this week?
According to the five-day outlook, pollen levels are expected to remain relatively stable.
Which pollen types are currently active in Helsinki?
On 14 October 2026, there are no significant pollen types in Helsinki.
When is pollen season in Helsinki?
How often is the Helsinki pollen forecast updated?
The Helsinki pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Helsinki 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 Helsinki 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 Helsinki, 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).
