Thaba Nchu pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Thaba Nchu is low; cypress, eucalyptus, mugwort, mulberry, plane, and nettle are low.
Pollen Tomorrow
Tomorrow (21 September 2026) eucalyptus remains low, mulberry remains low, plane remains low, nettle remains low, cypress increasing, mugwort increasing.
7-Day Trend
Over the next week cypress, eucalyptus, mugwort, mulberry, plane, and nettle will decrease; 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) | Low | 12/100 |
| Eucalyptus (Myrtaceae) | Low | 8/100 |
| Grass (Poaceae) | None | 0/100 |
| Oak (Quercus) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 15/100 |
| Mulberry (Morus) | Low | 12/100 |
| Plane (Platanus) | Low | 8/100 |
| Nettle (Urtica) | Low | 3/100 |
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 | 26/100 | |
| Eucalyptus (Myrtaceae) | Low | 20/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Oak (Quercus) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Moderate | 28/100 | |
| Mulberry (Morus) | Low | 25/100 | |
| Plane (Platanus) | Low | 20/100 | |
| Nettle (Urtica) | Low | 15/100 |
Local Environmental Conditions
Thaba Nchu's Free State Highveld setting features acacia thornveld, Highveld grasses, and isolated indigenous trees as the main pollen sources, with exposure varying between the grassland-covered hillsides of the Thaba Nchu mountain and the more built-up central town areas. The mountain itself creates distinct elevation-based pollen gradients, while the surrounding Highveld farmland contributes substantial grass and crop pollen throughout the summer rainfall season.
Thaba Nchu's Free State Highveld season is strongly driven by the summer rainfall pattern, with acacia contributing from August before grass from surrounding Highveld farmland peaks intensely through November and December. The Thaba Nchu Mountain creates elevation-based pollen gradients between the upland and valley areas, while the dry winter months suppress most pollen production across this Free State agricultural town.
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Frequently Asked Questions About Pollen in Free State
Is pollen high in Thaba Nchu right now?
On 20 September 2026, overall pollen levels in Thaba Nchu are low. Artemisia is the main contributor to airborne pollen, while cypress, morus, myrtle, platanus, and urtica remain at lower levels
Will pollen levels change in Thaba Nchu tomorrow?
On 21 September 2026, pollen conditions in Thaba Nchu will be different from today, with morus at low levels, myrtle at low levels, platanus at low levels, urtica at low levels and artemisia, cypress increasing
Is pollen expected to decrease in Thaba Nchu this week?
According to the five-day outlook, artemisia, cypress, morus, myrtle, platanus, and urtica pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Thaba Nchu?
On 20 September 2026, Artemisia is the dominant pollen source in Thaba Nchu. cypress, morus, myrtle, platanus, and urtica are also present but at lower levels. grass and oak are not currently active.
When is pollen season in Thaba Nchu?
How often is the Thaba Nchu pollen forecast updated?
The Thaba Nchu pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Thaba Nchu 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 Thaba Nchu 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 Thaba Nchu, 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).
