Zastron Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (11 October) pollen in Zastron is moderate; mold (alternaria) and mold (cladosporium) are moderate; cypress, eucalyptus, oak, and mulberry are low.
Pollen Tomorrow
Tomorrow (12 October 2026) mold (alternaria) remains moderate, mold (cladosporium) remains moderate, cypress increasing, eucalyptus increasing, oak increasing, mulberry increasing, mugwort at low levels, plane at low levels, nettle at low levels.
7-Day Trend
Over the next week cypress, eucalyptus, oak, mugwort, mulberry, plane, nettle, mold (alternaria), and mold (cladosporium) will decrease; grass will remain stable.
Explore Forecasts
Air Quality & Mold
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 - 11 October
| Pollen species | Level | Value |
|---|---|---|
| Alder (Alnus) | None | 0/100 |
| Birch (Betula) | None | 0/100 |
| Hazel (Corylus) | None | 0/100 |
| Cypress (Cupressaceae) | Low | 15/100 |
| Eucalyptus (Myrtaceae) | Low | 10/100 |
| Grass (Poaceae) | None | 0/100 |
| Oak (Quercus) | Low | 2/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Mulberry (Morus) | Low | 25/100 |
| Plane (Platanus) | None | 0/100 |
| Nettle (Urtica) | None | 0/100 |
| Mold (Alternaria) | Moderate | 28/100 |
| Mold (Cladosporium) | Moderate | 39/100 |
Tomorrow - 12 October
| 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 | 49/100 | |
| Eucalyptus (Myrtaceae) | Moderate | 42/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Oak (Quercus) | Moderate | 35/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 19/100 | |
| Mulberry (Morus) | High | 51/100 | |
| Plane (Platanus) | Low | 24/100 | |
| Nettle (Urtica) | Low | 24/100 | |
| Mold (Alternaria) | Moderate | 45/100 | |
| Mold (Cladosporium) | Moderate | 46/100 |
Local Environmental Conditions
The heart of Zastron is largely open grassland. In the immediate area, open grassland adds grass and weed pollen. Roadside verges and patches of open ground provide further room for grasses and weeds. Pollen also travels on the wind, so vegetation in the wider surroundings adds to local levels as well.
Grasses take over in late spring, with temperatures around 20°C, and their pollen lingers into early fall. Weeds on open ground add a smaller late peak from early summer into early fall. Rain is heaviest in summer, often giving short breaks from high pollen levels. By early winter, as temperatures fall to around 5°C, pollen levels are low again.
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 Free State
Is pollen high in Zastron right now?
On 11 October 2026, overall pollen levels in Zastron are low. Myrtle is the main contributor to airborne pollen, while oak, cypress, and morus remain at lower levels
Will pollen levels change in Zastron tomorrow?
On 12 October 2026, pollen conditions in Zastron will be different from today, with platanus at low levels, urtica at low levels, artemisia at low levels and myrtle, oak, cypress, morus increasing
Is pollen expected to decrease in Zastron this week?
According to the five-day outlook, myrtle, platanus, oak, urtica, artemisia, cypress, and morus pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Zastron?
On 11 October 2026, Myrtle is the dominant pollen source in Zastron. oak, cypress, and morus are also present but at lower levels. platanus, grass, urtica, and artemisia are not currently active.
When is pollen season in Zastron?
How often is the Zastron pollen forecast updated?
The Zastron pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Zastron 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 Zastron 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 Zastron, 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 pollen scores represent risk levels, not direct pollen measurements. Higher scores indicate higher risk.
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).
