Oslo pollen forecast - today, tomorrow and the week ahead

On 9 August 2026, overall pollen levels in Oslo are low. Cypress is the main contributor to airborne pollen, while grass and artemisia remain at lower levels

On 10 August 2026, pollen conditions in Oslo will be similar to today, with cypress at low levels, grass at low levels, artemisia at low levels

According to the five-day outlook, cypress pollen levels are expected to gradually decrease, while grass and artemisia pollen will increase, suggesting mixed conditions later in the week.

On 9 August 2026, Cypress is the dominant pollen source in Oslo. grass and artemisia are also present but at lower levels. hazel and willow are not currently active.

Oslo sees its pollen season runs its course from February to August, with an early alder and hazel signal already by February, before birch takes over with a strong peak lasting through May. Grass pollen then carries the season over June and July. With the combination of city parkland and nearby farmland around Oslo, the local climate means the season here doesn't always track the national picture precisely.

The Oslo pollen forecast is updated four times daily. See the timestamp below for the most recent update.

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.

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 Oslo, 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.