Katherine pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Katherine is low; cypress is low.
Pollen Tomorrow
Tomorrow (21 September 2026) cypress increasing, acacia at low levels, eucalyptus at low levels.
7-Day Trend
Over the next week acacia, cypress, and eucalyptus will decrease; grass will remain stable.
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Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Acacia (Acacia) | None | 0/100 |
| Cypress (Cupressaceae) | Low | 25/100 |
| Eucalyptus (Myrtaceae) | None | 0/100 |
| Grass (Poaceae) | None | 0/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Acacia (Acacia) | Low | 12/100 | |
| Cypress (Cupressaceae) | Moderate | 40/100 | |
| Eucalyptus (Myrtaceae) | Low | 11/100 | |
| Grass (Poaceae) | None | 0/100 |
Local Environmental Conditions
Katherine sits on the Katherine River in tropical savanna country, where eucalypt woodland over spear grass dominates the surrounding landscape; paperbark lines the river's edge, and monsoon vine thicket appears in sheltered gorge country nearby. Monsoonal rains trigger vigorous grass and tree growth through the wet season, making this the period of highest pollen activity, well ahead of the drier winter months.
Katherine, on the edge of the Top End near its famous gorge, follows the monsoonal wet-dry pattern typical of the Northern Territory. Grass pollen from surrounding savanna woodland builds through the dry season from May, peaking later in the dry, while tree pollen from eucalypt, paperbark and acacia species typically opens toward the end of the dry season, around August to October. The wet season from November to April brings intense monsoon rain that suppresses airborne pollen until the following dry season begins.
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Frequently Asked Questions About Pollen in Northern Territory
Is pollen high in Katherine right now?
On 20 September 2026, overall pollen levels in Katherine are low. Cypress is the main contributor to airborne pollen
Will pollen levels change in Katherine tomorrow?
On 21 September 2026, pollen conditions in Katherine will be different from today, with acacia at low levels, myrtle at low levels and cypress increasing
Is pollen expected to decrease in Katherine this week?
According to the five-day outlook, acacia, cypress, and myrtle pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Katherine?
On 20 September 2026, Cypress is the dominant pollen source in Katherine. acacia, myrtle, and grass are not currently active.
When is pollen season in Katherine?
How often is the Katherine pollen forecast updated?
The Katherine pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Katherine 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 Katherine 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 Katherine, 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. |
Get More in the Airmine Pollen app
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).
