Randfontein pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Randfontein is low; cypress, eucalyptus, oak, mugwort, mulberry, and plane are low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week cypress, eucalyptus, oak, mugwort, mulberry, and plane will increase; grass 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 | 13/100 |
| Eucalyptus (Myrtaceae) | Low | 6/100 |
| Grass (Poaceae) | None | 0/100 |
| Oak (Quercus) | Low | 2/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Low | 18/100 |
| Mulberry (Morus) | Low | 11/100 |
| Plane (Platanus) | Low | 7/100 |
| 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) | Low | 15/100 | |
| Eucalyptus (Myrtaceae) | Low | 7/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Oak (Quercus) | Low | 3/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 20/100 | |
| Mulberry (Morus) | Low | 13/100 | |
| Plane (Platanus) | Low | 9/100 | |
| Nettle (Urtica) | None | 0/100 |
Local Environmental Conditions
Randfontein's West Rand Highveld mining setting features eucalyptus, acacia, and introduced grassland as the main pollen sources, with exposure varying between the limited residential green spaces and the more built-up mining, commercial, and industrial corridors. The Mooi River tributary corridor provides locally significant green space, while the surrounding Highveld grassland contributes substantial grass pollen and the historical gold mining landscape limits native vegetation considerably throughout.
Randfontein's West Rand Highveld mining season opens in August with eucalyptus and acacia before grass from surrounding Highveld grassland peaks through November and December. The Mooi River tributary corridor contributes locally significant riparian pollen, while the dry Highveld winter suppresses most pollen production and the summer rainfall pattern concentrates the main season in spring and early summer throughout this West Rand gold mining city.
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Frequently Asked Questions About Pollen in Gauteng
Is pollen high in Randfontein right now?
On 20 September 2026, overall pollen levels in Randfontein are low. Myrtle is the main contributor to airborne pollen, while platanus, oak, artemisia, cypress, and morus remain at lower levels
Will pollen levels change in Randfontein tomorrow?
On 21 September 2026, pollen conditions in Randfontein will be similar to today, with myrtle at low levels, platanus at low levels, oak at low levels, artemisia at low levels, cypress at low levels, morus at low levels
Is pollen expected to decrease in Randfontein this week?
According to the five-day outlook, myrtle, platanus, oak, artemisia, cypress, and morus pollen levels will increase later in the week.
Which pollen types are currently active in Randfontein?
On 20 September 2026, Myrtle is the dominant pollen source in Randfontein. platanus, oak, artemisia, cypress, and morus are also present but at lower levels. grass and urtica are not currently active.
When is pollen season in Randfontein?
How often is the Randfontein pollen forecast updated?
The Randfontein pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Randfontein 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 Randfontein 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 Randfontein, 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).
