Harrismith pollen forecast — Drakensberg Amphitheatre neighborhood
Pollen Today
Today (20 September) pollen in Drakensberg Amphitheatre, Harrismith is low; cypress, eucalyptus, oak, and plane are low.
Pollen Tomorrow
Tomorrow (21 September 2026) eucalyptus remains low, oak remains low, cypress no longer expected, plane no longer expected.
7-Day Trend
Over the next week cypress, eucalyptus, oak, and plane will increase; grass, mugwort, mulberry, and nettle 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 | 10/100 |
| Eucalyptus (Myrtaceae) | Low | 18/100 |
| Grass (Poaceae) | None | 0/100 |
| Oak (Quercus) | Low | 13/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | None | 0/100 |
| Mulberry (Morus) | None | 0/100 |
| Plane (Platanus) | Low | 10/100 |
| Nettle (Urtica) | None | 0/100 |
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) | None | 0/100 | |
| Eucalyptus (Myrtaceae) | Low | 8/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Oak (Quercus) | Low | 3/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | None | 0/100 | |
| Mulberry (Morus) | None | 0/100 | |
| Plane (Platanus) | None | 0/100 | |
| Nettle (Urtica) | None | 0/100 |
Local Environmental Conditions
Drakensberg Amphitheatre lies roughly 270 km east of Bloemfontein. Drakensberg Amphitheatre's tree cover leans heavily on eucalyptus, acacia, and introduced oak, interspersed with open Highveld grassland that dominates beyond the built-up centre. Nearby maize, sunflower, and grain farming operations shapes the wider landscape, while exposure to grass pollen rises sharply once the summer rains reach the surrounding farmland, consistent with the wider Highveld plateau environment.
At Drakensberg Amphitheatre, the pollen year starts slowly in August with tree species like acacia and eucalyptus, before grassland pollen takes over and peaks through October and November. Surrounding maize, sunflower, and grain farming operations contributes little pollen directly, but shapes how built-up versus open the exposure is across the town, a pattern typical of the wider Highveld region.
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Frequently Asked Questions About Pollen in Free State
Is pollen high in Harrismith right now?
On 20 September 2026, overall pollen levels in Harrismith are low. Cypress is the main contributor to airborne pollen, while myrtle, platanus, and oak remain at lower levels
Will pollen levels change in Harrismith tomorrow?
On 21 September 2026, pollen conditions in Harrismith will be different from today, with myrtle at low levels, oak at low levels
Is pollen expected to decrease in Harrismith this week?
According to the five-day outlook, cypress, myrtle, platanus, and oak pollen levels will increase later in the week.
Which pollen types are currently active in Harrismith?
On 20 September 2026, Cypress is the dominant pollen source in Harrismith. myrtle, platanus, and oak are also present but at lower levels. urtica, artemisia, morus, and grass are not currently active.
When is pollen season in Harrismith?
How often is the Harrismith pollen forecast updated?
The Harrismith pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Harrismith 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 Harrismith 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 Harrismith, 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).
