Natal pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Natal is low; cypress, grass, and willow are low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week grass will increase; cypress and willow will decrease.
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Features and forecast availability vary by region.
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 | 20/100 |
| Grass (Poaceae) | Low | 2/100 |
| Willow (Salicaceae) | Low | 8/100 |
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 | |
| Grass (Poaceae) | Low | 4/100 | |
| Willow (Salicaceae) | Low | 10/100 |
Local Environmental Conditions
Natal's coastal setting features coconut palm, mango, and native Atlantic Forest species as the main tree pollen sources, with exposure varying between green areas and the more built-up city centre. Surrounding coastal dunes and restinga vegetation contribute additional pollen, while consistent onshore trade winds frequently disperse urban pollen across the city.
Natal's pollen season runs largely year-round in the tropical coastal climate, with grass and tree pollen exposure highest during the drier months from August to January. The wet season from February to July brings the most frequent rainfall interruptions, while consistent onshore trade winds frequently disperse pollen across the coastal dune city throughout the year.
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Frequently Asked Questions About Pollen in Rio Grande do Norte
Is pollen high in Natal right now?
On 20 September 2026, overall pollen levels in Natal are low. Willow is the main contributor to airborne pollen, while cypress and grass remain at lower levels
Will pollen levels change in Natal tomorrow?
On 21 September 2026, pollen conditions in Natal will be similar to today, with willow at low levels, cypress at low levels, grass at low levels
Is pollen expected to decrease in Natal this week?
According to the five-day outlook, willow and cypress pollen levels are expected to gradually decrease, while grass pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Natal?
On 20 September 2026, Willow is the dominant pollen source in Natal. cypress and grass are also present but at lower levels.
When is pollen season in Natal?
How often is the Natal pollen forecast updated?
The Natal pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Natal 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 Natal 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 Natal, 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).
