Teresópolis pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Teresópolis is low; cypress and willow are low.
Pollen Tomorrow
Tomorrow (21 September 2026) cypress increasing, willow increasing.
7-Day Trend
Over the next week cypress and willow will decrease; grass 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 | 6/100 |
| Grass (Poaceae) | None | 0/100 |
| Willow (Salicaceae) | Low | 3/100 |
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) | High | 57/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Willow (Salicaceae) | Moderate | 34/100 |
Local Environmental Conditions
Teresópolis climbs into the Rio de Janeiro Serra Fluminense highlands beneath the famous Dedo de Deus rock formation, where native Atlantic Forest remnants, eucalyptus, and highland campo vegetation are the main pollen sources. The very wet Serra Fluminense climate provides very frequent rainfall interruptions, while the elevated mountain setting creates variable local conditions and the subtropical highland climate produces a well-defined pollen season throughout.
Teresópolis's pollen season follows the region's typical pattern, led by native Atlantic Forest remnants and highland campo vegetation 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 de Janeiro
Is pollen high in Teresópolis right now?
On 20 September 2026, overall pollen levels in Teresópolis are low. Cypress is the main contributor to airborne pollen, while willow remain at lower levels
Will pollen levels change in Teresópolis tomorrow?
On 21 September 2026, pollen conditions in Teresópolis will be different from today, with cypress, willow increasing
Is pollen expected to decrease in Teresópolis this week?
According to the five-day outlook, cypress and willow pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Teresópolis?
On 20 September 2026, Cypress is the dominant pollen source in Teresópolis. willow are also present but at lower levels. grass are not currently active.
When is pollen season in Teresópolis?
How often is the Teresópolis pollen forecast updated?
The Teresópolis pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Teresópolis 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 Teresópolis 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 Teresópolis, 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).
