Capão da Canoa pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Capão da Canoa is low; cypress, grass, and willow are low.
Pollen Tomorrow
Tomorrow (21 September 2026) cypress remains low, grass remains low, willow no longer expected.
7-Day Trend
Over the next week cypress, grass, and willow will increase.
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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 | 3/100 |
| Grass (Poaceae) | Low | 3/100 |
| Willow (Salicaceae) | Low | 1/100 |
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 | 1/100 | |
| Grass (Poaceae) | Low | 1/100 | |
| Willow (Salicaceae) | None | 0/100 |
Local Environmental Conditions
Capão da Canoa extends along the Rio Grande do Sul Atlantic beach coast as a popular summer resort, where coastal restinga vegetation, introduced urban trees, and beach dune grasses are the main pollen sources. The subtropical climate produces a well-defined pollen season, while the Atlantic Ocean position means onshore breezes can periodically disperse pollen and rainfall interruptions occur throughout the year throughout.
Capão da Canoa's pollen season follows the region's typical pattern, led by introduced urban trees and beach dune grasses pollen, with exposure varying across the year according to local seasonal rainfall and temperature patterns.
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Frequently Asked Questions About Pollen in Rio Grande do Sul
Is pollen high in Capão da Canoa right now?
On 20 September 2026, overall pollen levels in Capão da Canoa are low. Cypress is the main contributor to airborne pollen, while grass and willow remain at lower levels
Will pollen levels change in Capão da Canoa tomorrow?
On 21 September 2026, pollen conditions in Capão da Canoa will be different from today, with cypress at low levels, grass at low levels
Is pollen expected to decrease in Capão da Canoa this week?
According to the five-day outlook, cypress, grass, and willow pollen levels will increase later in the week.
Which pollen types are currently active in Capão da Canoa?
On 20 September 2026, Cypress is the dominant pollen source in Capão da Canoa. grass and willow are also present but at lower levels.
When is pollen season in Capão da Canoa?
How often is the Capão da Canoa pollen forecast updated?
The Capão da Canoa pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Capão da Canoa 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 Capão da Canoa 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 Capão da Canoa, 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).
