Bristol pollen forecast — Ashton Court Estate neighborhood
Pollen Today
Today (20 September) pollen in Ashton Court Estate, Bristol is low; mugwort is low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week mugwort will increase; cypress, grass, and willow will remain stable.
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Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Alder (Alnus) | None | 0/100 |
| Birch (Betula) | None | 0/100 |
| Hazel (Corylus) | None | 0/100 |
| Cypress (Cupressaceae) | None | 0/100 |
| Grass (Poaceae) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 7/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Alder (Alnus) | None | 0/100 | — |
| Birch (Betula) | None | 0/100 | — |
| Hazel (Corylus) | None | 0/100 | — |
| Cypress (Cupressaceae) | None | 0/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | |
| Mugwort (Artemisia) | Low | 18/100 |
Local Environmental Conditions
In Ashton Court Estate, oak and beech dominate the local tree pollen picture, with parks and tree-lined residential streets offering more exposure than the compact centre. The local common land nearby is a notable secondary source, feeding pollen into town whenever the wind shifts to the inland. Locals with allergies tend to plan around two peaks a year rather than one long stretch.
So here's the rundown for Ashton Court Estate: oak pollen shows up first, then beech takes over. Grass season overlaps a lot of this too, running May through September and peaking mid-summer. Oak pollen typically runs from April to May, and beech keeps things going from April right through to May. Something to plan around if pollen usually gets to you.
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Frequently Asked Questions About Pollen in Bristol, City of
Is pollen high in Bristol right now?
On 20 September 2026, overall pollen levels in Bristol are low. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Bristol tomorrow?
On 21 September 2026, pollen conditions in Bristol will be similar to today, with artemisia at low levels
Is pollen expected to decrease in Bristol this week?
According to the five-day outlook, artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Bristol?
On 20 September 2026, Artemisia is the dominant pollen source in Bristol. willow, cypress, and grass are not currently active.
When is pollen season in Bristol?
How often is the Bristol pollen forecast updated?
The Bristol pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Bristol 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 Bristol 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 Bristol, 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.
Understanding the Scale
The 0–100 scores represent risk levels, not direct measurements of pollen or air pollutant concentrations. Higher scores indicate higher risk. Pollen and air quality use different thresholds.
Pollen
| None | 0 | No or negligible risk of exposure. Pollen/mold exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen or mold spores may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen/mold exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen/mold exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen/mold exposure is expected to be at or near its highest levels. |
Get More in the Airmine Pollen app
Get 15-day pollen forecasts with morning, afternoon and evening detail, plus 5-day air quality forecasts. Explore interactive pollen risk maps, estimated pollen season start, route profiles and a symptoms diary.
Features and forecast availability vary by region. Currently covering Europe, the contiguous US, southern Canada, South Africa, Australia, Indonesia (Java & Bali), Brazil, Paraguay, Uruguay and the Buenos Aires area.
Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS).
