Colchester pollen forecast - today, tomorrow and the week ahead
Today (25 June) pollen in Colchester is medium; grass is medium. Tomorrow (26 June 2026) levels are similar - grass increasing, cypress at medium levels. Over the following five days cypress and grass will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Colchester's parks, including Castle Park, and the River Colne corridor feature oak and ash as the main tree pollen sources, with exposure varying between these green areas and the more built-up town centre. Surrounding Essex farmland and river meadows contribute substantial grass and crop pollen, with the flat, open landscape allowing it to travel readily into the town.
Today - 25 June
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Medium
47/100
-
Willow (Salicaceae):
None
0/100
High pollen levels may trigger sneezing, itchy eyes, and congestion. Airmine's neighbourhood estimates use satellites to map local vegetation and a statistical prediction model, updated four times daily.
Tomorrow - 26 June
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
Medium
30/100
-
Grass (Poaceae):
High
70/100
-
Willow (Salicaceae):
None
0/100
Frequently Asked Questions
Is pollen high in Colchester right now?
On 25 June 2026, overall pollen levels in Colchester are moderate. Grass is the main contributor to airborne pollen
Will pollen levels change in Colchester tomorrow?
On 26 June 2026, pollen conditions in Colchester will be different from today, with cypress at medium levels and grass increasing
Is pollen expected to decrease in Colchester this week?
According to the five-day outlook, cypress and grass pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Colchester?
On 25 June 2026, Grass is the dominant pollen source in Colchester. alder, birch, hazel, cypress, and willow are not currently active.
When is pollen season in Colchester?
How often is the Colchester pollen forecast updated?
The Colchester pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Colchester come from nearby or far away?
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.
Are pollen levels in Colchester based on measurements or forecasts?
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 Colchester, 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.
Want to see pollen forecasts for other cities in United Kingdom?
Check pollen in other popular cities:
Data provided by Airmine — Last update: 25 Jun 2026, 09:01 CET (Data is updated four times daily.)
This page provides the latest public pollen forecast for Colchester.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.