Wellington pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Wellington is moderate; cypress, mugwort, and nettle are moderate; eucalyptus, grass, mulberry, and plane are low.
Pollen Tomorrow
Tomorrow (21 September 2026) eucalyptus remains low, grass remains low, mugwort remains moderate, mulberry remains low, plane remains low, nettle remains moderate, cypress declining.
7-Day Trend
Over the next week cypress, eucalyptus, grass, mugwort, mulberry, plane, and nettle will increase; 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) | Moderate | 26/100 |
| Eucalyptus (Myrtaceae) | Low | 19/100 |
| Grass (Poaceae) | Low | 22/100 |
| Oak (Quercus) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | Moderate | 50/100 |
| Mulberry (Morus) | Low | 23/100 |
| Plane (Platanus) | Low | 18/100 |
| Nettle (Urtica) | Moderate | 50/100 |
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 | 21/100 | |
| Eucalyptus (Myrtaceae) | Low | 14/100 | |
| Grass (Poaceae) | Low | 17/100 | |
| Oak (Quercus) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | — |
| Mugwort (Artemisia) | Moderate | 50/100 | |
| Mulberry (Morus) | Low | 18/100 | |
| Plane (Platanus) | Low | 13/100 | |
| Nettle (Urtica) | Moderate | 50/100 |
Local Environmental Conditions
Wellington's Western Cape Breede River valley winelands setting features oak, pine, and vineyard vegetation as the main pollen sources, with exposure varying between the Hawequa Mountain slopes and the more built-up commercial and wine cellar corridors. The Berg River corridor provides locally significant riparian vegetation, while the surrounding wine farmland contributes substantial grass and crop pollen and the mountain fynbos above contributes distinctive Cape pollen throughout the season.
Wellington's Western Cape Breede valley winelands season opens in July with wattle and pine before oak and vineyard grass peak through September and October. Grass from surrounding wine farmland peaks through October and November, while the Berg River corridor contributes locally significant riparian pollen and the Hawequa Mountain fynbos contributes distinctive Cape pollen above the valley floor throughout the season.
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Frequently Asked Questions About Pollen in Western Cape
Is pollen high in Wellington right now?
On 20 September 2026, overall pollen levels in Wellington are moderate. Urtica is the main contributor to airborne pollen, while artemisia, cypress, grass, morus, myrtle, and platanus remain at lower levels
Will pollen levels change in Wellington tomorrow?
On 21 September 2026, pollen conditions in Wellington will be different from today, with grass at low levels, urtica at moderate levels, artemisia at moderate levels, morus at low levels, myrtle at low levels, platanus at low levels and cypress continuing to decline
Is pollen expected to decrease in Wellington this week?
According to the five-day outlook, grass, urtica, artemisia, cypress, morus, myrtle, and platanus pollen levels will increase later in the week.
Which pollen types are currently active in Wellington?
On 20 September 2026, Urtica is the dominant pollen source in Wellington. artemisia, cypress, grass, morus, myrtle, and platanus are also present but at lower levels. oak are not currently active.
When is pollen season in Wellington?
How often is the Wellington pollen forecast updated?
The Wellington pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Wellington 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 Wellington 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 Wellington, 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).
