Hoopstad pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Hoopstad is moderate; cypress, eucalyptus, and mulberry are moderate; mugwort, plane, and nettle are low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week cypress, eucalyptus, mugwort, mulberry, plane, and nettle will increase; grass and 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) | Moderate | 44/100 |
| Eucalyptus (Myrtaceae) | Moderate | 36/100 |
| Grass (Poaceae) | None | 0/100 |
| Oak (Quercus) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 23/100 |
| Mulberry (Morus) | Moderate | 37/100 |
| Plane (Platanus) | Low | 19/100 |
| Nettle (Urtica) | Low | 10/100 |
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 | 36/100 | |
| Eucalyptus (Myrtaceae) | Moderate | 29/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Oak (Quercus) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 15/100 | |
| Mulberry (Morus) | Moderate | 29/100 | |
| Plane (Platanus) | Low | 11/100 | |
| Nettle (Urtica) | Low | 3/100 |
Local Environmental Conditions
Hoopstad's Free State Highveld agricultural setting features acacia thornveld, eucalyptus, and introduced grasses as the main pollen sources alongside free-flowing Highveld grassland. Exposure varies between the limited residential green spaces and the more open agricultural and commercial areas, while the Vaal tributary corridor provides locally significant riparian vegetation and the surrounding Highveld maize and wheat farmland contributes substantial grass and crop pollen throughout the summer season.
Hoopstad's Free State Highveld agricultural season is strongly driven by the summer rainfall pattern, with acacia contributing from August before grass and crop pollen from surrounding maize and wheat farmland peaks intensely through November and December. The flat, open Highveld landscape allows pollen to disperse very widely, while the dry winter months suppress most pollen production across this agricultural Free State town.
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Frequently Asked Questions About Pollen in Free State
Is pollen high in Hoopstad right now?
On 20 September 2026, overall pollen levels in Hoopstad are moderate. Cypress is the main contributor to airborne pollen, while morus, myrtle, platanus, urtica, and artemisia remain at lower levels
Will pollen levels change in Hoopstad tomorrow?
On 21 September 2026, pollen conditions in Hoopstad will be similar to today, with cypress at moderate levels, morus at moderate levels, myrtle at moderate levels, platanus at low levels, urtica at low levels, artemisia at low levels
Is pollen expected to decrease in Hoopstad this week?
According to the five-day outlook, cypress, morus, myrtle, platanus, urtica, and artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Hoopstad?
On 20 September 2026, Cypress is the dominant pollen source in Hoopstad. morus, myrtle, platanus, urtica, and artemisia are also present but at lower levels. grass and oak are not currently active.
When is pollen season in Hoopstad?
How often is the Hoopstad pollen forecast updated?
The Hoopstad pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Hoopstad 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 Hoopstad 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 Hoopstad, 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).
