Capelle aan den IJssel pollen forecast - today, tomorrow and the week ahead

On 16 July 2026, overall pollen levels in Capelle aan den IJssel are low. Grass is the main contributor to airborne pollen

On 17 July 2026, pollen conditions in Capelle aan den IJssel will be similar to today, with grass at low levels

According to the five-day outlook, cypress, grass, and artemisia pollen levels will increase later in the week.

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

Capelle aan den IJssel's pollen season runs from January through August, opening with hazel and alder from January before birch peaks through April. Oak and ash follow through April and May, with grass peaking through June and July. The IJssel waterway channels airflows connecting the city to the Rotterdam metropolitan pollen landscape, while surrounding South Holland polder farmland extends substantial grass and crop pollen into August.

The Capelle aan den IJssel 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 Capelle aan den IJssel, 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.