Dulwich pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Dulwich is moderate; mugwort is moderate.
Pollen Tomorrow
Tomorrow (21 September 2026) mugwort increasing.
7-Day Trend
Over the next week grass and mugwort will increase; cypress 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 | 49/100 |
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) | High | 62/100 |
Local Environmental Conditions
In Dulwich, plane and lime dominate the local tree pollen picture, with parks and tree-lined residential streets offering more exposure than the compact centre. Surrounding Southwark farmland contributes substantial grass and tree pollen, moving into town when winds blow from the the coast. Seasonal peaks tend to track the wider regional pattern, tree pollen leading in spring and grass through summer.
Locals in Dulwich usually notice plane first, with lime not far behind it. Grass season overlaps a lot of this too, running May through September and peaking mid-summer. Plane pollen typically runs from April to June, before lime takes over, usually May to July. Useful to know if you tend to feel it every spring.
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Frequently Asked Questions About Pollen in Southwark
Is pollen high in Dulwich right now?
On 20 September 2026, overall pollen levels in Dulwich are moderate. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Dulwich tomorrow?
On 21 September 2026, pollen conditions in Dulwich will be different from today, with artemisia increasing
Is pollen expected to decrease in Dulwich this week?
According to the five-day outlook, grass and artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Dulwich?
On 20 September 2026, Artemisia is the dominant pollen source in Dulwich. grass, willow, and cypress are not currently active.
When is pollen season in Dulwich?
How often is the Dulwich pollen forecast updated?
The Dulwich pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Dulwich 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 Dulwich 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 Dulwich, 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. |
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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).
