Istead Rise pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Istead Rise is moderate; mugwort is moderate.
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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Features and forecast availability vary by region.
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) | Moderate | 31/100 |
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) | Moderate | 40/100 |
Local Environmental Conditions
Tree pollen in Istead Rise comes mostly from sycamore and oak, with parks and mature gardens standing in contrast to the more built-up centre. The nearby belt of hedgerows adds further grass and tree pollen exposure, particularly under prevailing westerlies. Overall exposure follows the broader regional trend, moderated somewhat by the town's parks and gardens.
If you're wondering when hay fever kicks off in Istead Rise, it's mostly down to sycamore and oak. Sycamore pollen typically runs from April to June, while oak follows on from April to May. Grass season overlaps a lot of this too, running May through September and peaking mid-summer. Handy to bear in mind before booking that garden party.
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Frequently Asked Questions About Pollen in Kent
Is pollen high in Istead Rise right now?
On 20 September 2026, overall pollen levels in Istead Rise are moderate. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Istead Rise tomorrow?
On 21 September 2026, pollen conditions in Istead Rise will be similar to today, with artemisia at moderate levels
Is pollen expected to decrease in Istead Rise this week?
According to the five-day outlook, artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Istead Rise?
On 20 September 2026, Artemisia is the dominant pollen source in Istead Rise. cypress, grass, and willow are not currently active.
When is pollen season in Istead Rise?
How often is the Istead Rise pollen forecast updated?
The Istead Rise pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Istead Rise 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 Istead Rise 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 Istead Rise, 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).
