Horwich pollen forecast - today, tomorrow and the week ahead

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

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

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

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

Want to know what triggers spring allergies in Horwich? Start with alder, then birch. Then grass pollen takes the baton from May all the way to September, usually peaking in June and July — that's when most people really feel it. You'll usually see alder pollen from around January through April, with birch picking up between March and May. Worth keeping an eye on the forecast if you're sensitive.

The Horwich 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 Horwich, 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.