Rapperswil-Jona pollen forecast - today, tomorrow and the week ahead

On 16 July 2026, overall pollen levels in Rapperswil-Jona are low. Cypress is the main contributor to airborne pollen, while grass remain at lower levels

On 17 July 2026, pollen conditions in Rapperswil-Jona will be different from today, with grass at low levels

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

On 16 July 2026, Cypress is the dominant pollen source in Rapperswil-Jona. grass are also present but at lower levels. alder, artemisia, birch, hazel, and willow are not currently active.

Hazel and alder kick off the season at Rapperswil-Jona in January, and once birch peaks through April, oak and ash take over before grass claims June and July. River valleys and surrounding foothills here channel airflows and can concentrate pollen under calm conditions, while nearby farmland adds substantial tree and grass exposure.

The Rapperswil-Jona 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 Rapperswil-Jona, 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.