Jansenville pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Jansenville is moderate; mugwort and nettle are moderate; cypress and eucalyptus are low.
Pollen Tomorrow
Tomorrow (21 September 2026) cypress remains low, eucalyptus remains low, mugwort declining, nettle declining.
7-Day Trend
Over the next week cypress, eucalyptus, grass, mugwort, and nettle will increase; oak, mulberry, and plane 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 | 25/100 |
| Eucalyptus (Myrtaceae) | Low | 20/100 |
| Grass (Poaceae) | None | 0/100 |
| Oak (Quercus) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Moderate | 30/100 |
| Mulberry (Morus) | None | 0/100 |
| Plane (Platanus) | None | 0/100 |
| Nettle (Urtica) | Moderate | 34/100 |
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 | 8/100 | |
| Eucalyptus (Myrtaceae) | Low | 3/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Oak (Quercus) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Low | 13/100 | |
| Mulberry (Morus) | None | 0/100 | |
| Plane (Platanus) | None | 0/100 | |
| Nettle (Urtica) | Low | 17/100 |
Local Environmental Conditions
Jansenville lies roughly 140 km northwest of Gqeberha. At Jansenville, sparse Karoo scrub and camel thorn acacia define most of the surrounding vegetation, with irrigated gardens providing the only real greenery within town. The area's sheep and ostrich farming operations shapes a wider landscape where pollen sources remain thin for most of the year, consistent with the wider semi-arid Karoo landscape.
At Jansenville, the Karoo's low rainfall limits pollen production to a brief spring peak. Acacia and hardy scrub flower from August, with grass following through September and October, after which the dry summer heat and the area's sheep and ostrich farming operations keep further pollen release minimal until spring returns, a pattern typical of the wider semi-arid Karoo interior.
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Frequently Asked Questions About Pollen in Eastern Cape
Is pollen high in Jansenville right now?
On 20 September 2026, overall pollen levels in Jansenville are moderate. Urtica is the main contributor to airborne pollen, while artemisia, cypress, and myrtle remain at lower levels
Will pollen levels change in Jansenville tomorrow?
On 21 September 2026, pollen conditions in Jansenville will be different from today, with cypress at low levels, myrtle at low levels and urtica, artemisia continuing to decline
Is pollen expected to decrease in Jansenville this week?
According to the five-day outlook, urtica, artemisia, cypress, myrtle, and grass pollen levels will increase later in the week.
Which pollen types are currently active in Jansenville?
On 20 September 2026, Urtica is the dominant pollen source in Jansenville. artemisia, cypress, and myrtle are also present but at lower levels. morus, platanus, grass, and oak are not currently active.
When is pollen season in Jansenville?
How often is the Jansenville pollen forecast updated?
The Jansenville pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Jansenville 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 Jansenville 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 Jansenville, 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).
