Gouda pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Gouda is moderate; mugwort and nettle are moderate; cypress, eucalyptus, grass, mulberry, and plane are low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week cypress, eucalyptus, grass, mugwort, mulberry, plane, and nettle will increase; oak 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) | Low | 18/100 |
| Eucalyptus (Myrtaceae) | Low | 17/100 |
| Grass (Poaceae) | Low | 23/100 |
| Oak (Quercus) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Moderate | 41/100 |
| Mulberry (Morus) | Low | 18/100 |
| Plane (Platanus) | Low | 17/100 |
| Nettle (Urtica) | Moderate | 44/100 |
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) | Low | 11/100 | |
| Eucalyptus (Myrtaceae) | Low | 10/100 | |
| Grass (Poaceae) | Low | 16/100 | |
| Oak (Quercus) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Moderate | 34/100 | |
| Mulberry (Morus) | Low | 11/100 | |
| Plane (Platanus) | Low | 10/100 | |
| Nettle (Urtica) | Moderate | 37/100 |
Local Environmental Conditions
Nearby, in the vicinity, the waterside growth here is largely acacia and eucalyptus, both efficient wind-pollen dispersers. Neighboring areas with similar land cover tend to show a closely matching pollen mix. Year-to-year swings in rainfall and wind can shift this picture somewhat either way. Comparable land cover in surrounding areas tends to produce a similar pollen mix overall.
Water-edge acacia and eucalyptus are usually the first allergenic trees active here, topping out well before most other trees start releasing pollen, around August and September. Moving into early summer, grass pollen climbs to its seasonal high in December, before ragweed pollen takes center stage across mid-February into April. Small variations in local weather can nudge these windows a few days in either direction.
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Frequently Asked Questions About Pollen in Western Cape
Is pollen high in Gouda right now?
On 20 September 2026, overall pollen levels in Gouda are moderate. Urtica is the main contributor to airborne pollen, while artemisia, myrtle, platanus, grass, cypress, and morus remain at lower levels
Will pollen levels change in Gouda tomorrow?
On 21 September 2026, pollen conditions in Gouda will be similar to today, with myrtle at low levels, platanus at low levels, grass at low levels, urtica at moderate levels, artemisia at moderate levels, cypress at low levels, morus at low levels
Is pollen expected to decrease in Gouda this week?
According to the five-day outlook, myrtle, platanus, grass, urtica, artemisia, cypress, and morus pollen levels will increase later in the week.
Which pollen types are currently active in Gouda?
On 20 September 2026, Urtica is the dominant pollen source in Gouda. artemisia, myrtle, platanus, grass, cypress, and morus are also present but at lower levels. oak are not currently active.
When is pollen season in Gouda?
How often is the Gouda pollen forecast updated?
The Gouda pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Gouda 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 Gouda 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 Gouda, 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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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).
