Plettenberg Bay pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Plettenberg Bay is moderate; cypress, eucalyptus, mugwort, mulberry, and nettle are moderate.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week cypress, eucalyptus, grass, mugwort, mulberry, and nettle will increase; oak and plane 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) | Moderate | 46/100 |
| Eucalyptus (Myrtaceae) | Moderate | 34/100 |
| Grass (Poaceae) | None | 0/100 |
| Oak (Quercus) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Moderate | 50/100 |
| Mulberry (Morus) | Moderate | 31/100 |
| Plane (Platanus) | None | 0/100 |
| Nettle (Urtica) | Moderate | 50/100 |
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) | Moderate | 44/100 | |
| Eucalyptus (Myrtaceae) | Moderate | 32/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Oak (Quercus) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Moderate | 50/100 | |
| Mulberry (Morus) | Moderate | 30/100 | |
| Plane (Platanus) | None | 0/100 | |
| Nettle (Urtica) | Moderate | 50/100 |
Local Environmental Conditions
Plettenberg Bay's Garden Route Bay setting features coastal fynbos, yellowwood, and indigenous forest trees as the main pollen sources, with exposure varying between the Tsitsikamma forest fringe and the more built-up beach resort commercial corridors. The Bitou and Keurbooms River corridors provide locally significant indigenous forest and riparian pollen, while the Garden Route's exceptional biodiversity contributes a broader range of pollen sources than most South African cities throughout.
Plettenberg Bay's Garden Route Bay season opens in July with wattle and coastal fynbos before yellowwood and indigenous forest trees peak through September and October. Grass from surrounding farmland peaks through November, while the Bitou and Keurbooms River corridors contribute locally significant indigenous forest and riparian pollen and the Garden Route's exceptional biodiversity produces a broader and more diverse range of pollen sources than most South African cities.
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Frequently Asked Questions About Pollen in Western Cape
Is pollen high in Plettenberg Bay right now?
On 20 September 2026, overall pollen levels in Plettenberg Bay are moderate. Cypress is the main contributor to airborne pollen, while morus, myrtle, urtica, and artemisia remain at lower levels
Will pollen levels change in Plettenberg Bay tomorrow?
On 21 September 2026, pollen conditions in Plettenberg Bay will be similar to today, with cypress at moderate levels, morus at moderate levels, myrtle at moderate levels, urtica at moderate levels, artemisia at moderate levels
Is pollen expected to decrease in Plettenberg Bay this week?
According to the five-day outlook, cypress, morus, myrtle, grass, urtica, and artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Plettenberg Bay?
On 20 September 2026, Cypress is the dominant pollen source in Plettenberg Bay. morus, myrtle, urtica, and artemisia are also present but at lower levels. platanus, grass, and oak are not currently active.
When is pollen season in Plettenberg Bay?
How often is the Plettenberg Bay pollen forecast updated?
The Plettenberg Bay pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Plettenberg Bay 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 Plettenberg Bay 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 Plettenberg Bay, 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).
