Bülach pollen forecast - today, tomorrow and the week ahead

On 16 July 2026, overall pollen levels in Bülach are low. Grass is the main contributor to airborne pollen

On 17 July 2026, pollen conditions in Bülach will be similar to today, with grass at low levels

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

On 16 July 2026, Grass is the dominant pollen source in Bülach. willow, alder, artemisia, birch, hazel, and cypress are not currently active.

Bülach sees its pollen season start in January with hazel and alder, birch peaking strongly through April, ash and oak close behind, and grass finally taking over across June and July. Still air over the lake can let pollen linger here, while the patchwork of farmland, orchards, and forest nearby keeps the supply flowing.

The Bülach 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 Bülach, 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.