Gansbaai pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Gansbaai 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, mugwort, mulberry, and nettle will increase; grass, oak, and plane will remain stable.
Explore Forecasts
Air Quality
Pollen in Other Cities
Air Quality in Other Cities
Get More in Our App
Local pollen and air quality forecasts, interactive pollen maps and route profiles
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) | Moderate | 50/100 |
| Eucalyptus (Myrtaceae) | Moderate | 36/100 |
| Grass (Poaceae) | None | 0/100 |
| Oak (Quercus) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Moderate | 50/100 |
| Mulberry (Morus) | Moderate | 35/100 |
| 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 | 50/100 | |
| Eucalyptus (Myrtaceae) | Moderate | 35/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Oak (Quercus) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Moderate | 48/100 | |
| Mulberry (Morus) | Moderate | 33/100 | |
| Plane (Platanus) | None | 0/100 | |
| Nettle (Urtica) | Moderate | 50/100 |
Local Environmental Conditions
This area sits apart from mapped forest, water, or parkland, leaving grass and ragweed as the more probable dominant allergens. Ground-level conditions like local landscaping can nudge these figures slightly either way. Nearby weather stations report comparable trends across the broader stretch of the county. Small shifts in elevation or soil type can move these figures a little either way.
Late spring sees grass pollen build steadily toward a peak in December, and ragweed later takes the lead from mid-February through April. This general pattern holds fairly steady across the surrounding county from year to year. Local weather swings can shift these windows slightly, but the overall order tends to hold.
Get pollen & AQ on Strava
Follow your environmental exposure and performance with the free Airmine-Strava integration. See your pollen and air quality exposure for every Strava activity.
Resource Hub
Frequently Asked Questions About Pollen in Western Cape
Is pollen high in Gansbaai right now?
On 20 September 2026, overall pollen levels in Gansbaai are moderate. Urtica is the main contributor to airborne pollen, while artemisia, cypress, morus, and myrtle remain at lower levels
Will pollen levels change in Gansbaai tomorrow?
On 21 September 2026, pollen conditions in Gansbaai will be similar to today, with urtica at moderate levels, artemisia at moderate levels, cypress at moderate levels, morus at moderate levels, myrtle at moderate levels
Is pollen expected to decrease in Gansbaai this week?
According to the five-day outlook, urtica, artemisia, cypress, morus, and myrtle pollen levels will increase later in the week.
Which pollen types are currently active in Gansbaai?
On 20 September 2026, Urtica is the dominant pollen source in Gansbaai. artemisia, cypress, morus, and myrtle are also present but at lower levels. platanus, grass, and oak are not currently active.
When is pollen season in Gansbaai?
How often is the Gansbaai pollen forecast updated?
The Gansbaai pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Gansbaai 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 Gansbaai 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 Gansbaai, 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).
