Pienaar pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Pienaar is moderate; mugwort is moderate; cypress, eucalyptus, oak, mulberry, plane, and nettle are low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week eucalyptus, oak, and nettle will increase; cypress, mugwort, mulberry, and plane will decrease; grass 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 | 21/100 |
| Eucalyptus (Myrtaceae) | Low | 9/100 |
| Grass (Poaceae) | None | 0/100 |
| Oak (Quercus) | Low | 9/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Moderate | 50/100 |
| Mulberry (Morus) | Low | 19/100 |
| Plane (Platanus) | Low | 15/100 |
| Nettle (Urtica) | Low | 9/100 |
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 | 17/100 | |
| Eucalyptus (Myrtaceae) | Low | 5/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Oak (Quercus) | Low | 4/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Moderate | 50/100 | |
| Mulberry (Morus) | Low | 14/100 | |
| Plane (Platanus) | Low | 11/100 | |
| Nettle (Urtica) | Low | 5/100 |
Local Environmental Conditions
With woodland and water both absent nearby, grass and ragweed growing on unmanaged or agricultural land likely dominate the pollen mix. The broader area tends to mirror this pattern, with only minor local variation. Seasonal timing here generally tracks the wider region, give or take a week or so. Surrounding neighborhoods with similar tree cover typically see a closely comparable pollen mix.
Through late spring, grass pollen climbs steadily toward its December peak, and ragweed later takes the lead from mid-February through April. This general pattern holds fairly steady across the surrounding county from year to year. Local weather swings can shift these windows slightly, but the overall order tends to hold.
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Frequently Asked Questions About Pollen in Mpumalanga
Is pollen high in Pienaar right now?
On 20 September 2026, overall pollen levels in Pienaar are moderate. Artemisia is the main contributor to airborne pollen, while cypress, morus, myrtle, platanus, oak, and urtica remain at lower levels
Will pollen levels change in Pienaar tomorrow?
On 21 September 2026, pollen conditions in Pienaar will be similar to today, with cypress at low levels, morus at low levels, myrtle at low levels, platanus at low levels, oak at low levels, urtica at low levels, artemisia at moderate levels
Is pollen expected to decrease in Pienaar this week?
According to the five-day outlook, cypress, morus, platanus, and artemisia pollen levels are expected to gradually decrease, while myrtle, oak, and urtica pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Pienaar?
On 20 September 2026, Artemisia is the dominant pollen source in Pienaar. cypress, morus, myrtle, platanus, oak, and urtica are also present but at lower levels. grass are not currently active.
When is pollen season in Pienaar?
How often is the Pienaar pollen forecast updated?
The Pienaar pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Pienaar 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 Pienaar 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 Pienaar, 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).
