Cachoeiras de Macacu Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Cachoeiras de Macacu is moderate; cypress is moderate; willow is low.
Pollen Tomorrow
Tomorrow (11 October 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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Pollen Risk
Today - 10 October
| Pollen species | Level | Value |
|---|---|---|
| Alder (Alnus) | None | 0/100 |
| Birch (Betula) | None | 0/100 |
| Hazel (Corylus) | None | 0/100 |
| Cypress (Cupressaceae) | Moderate | 47/100 |
| Grass (Poaceae) | None | 0/100 |
| Willow (Salicaceae) | Low | 20/100 |
Tomorrow - 11 October
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Alder (Alnus) | None | 0/100 | — |
| Birch (Betula) | None | 0/100 | — |
| Hazel (Corylus) | None | 0/100 | — |
| Cypress (Cupressaceae) | Moderate | 44/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Willow (Salicaceae) | Low | 18/100 |
Local Environmental Conditions
The area around the heart of Cachoeiras de Macacu is mostly woodland, with a good deal of built-up land and some open grassland. With the Macacu River nearby, riverside vegetation along its banks contributes to the local mix. Locally, the woodland makes trees an important source. In the built-up parts of the area, street trees, gardens and park lawns add to the local mix.
Temperatures stay between about 20°C and 25°C through the year, so plants release pollen in most months. Levels tend to be highest in drier spells, especially around July. During the rainy season, frequent heavy downpours wash much of the pollen out of the air. Warm, humid weather keeps mold spores around for most of the year as well.
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Frequently Asked Questions About Pollen in Rio de Janeiro
Is pollen high in Cachoeiras de Macacu right now?
On 10 October 2026, overall pollen levels in Cachoeiras de Macacu are moderate. Cypress is the main contributor to airborne pollen, while willow remain at lower levels
Will pollen levels change in Cachoeiras de Macacu tomorrow?
On 11 October 2026, pollen conditions in Cachoeiras de Macacu will be similar to today, with cypress at moderate levels, willow at low levels
Is pollen expected to decrease in Cachoeiras de Macacu this week?
According to the five-day outlook, cypress and willow 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 Cachoeiras de Macacu?
On 10 October 2026, Cypress is the dominant pollen source in Cachoeiras de Macacu. willow are also present but at lower levels. grass are not currently active.
When is pollen season in Cachoeiras de Macacu?
How often is the Cachoeiras de Macacu pollen forecast updated?
The Cachoeiras de Macacu pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Cachoeiras de Macacu 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 Cachoeiras de Macacu 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 Cachoeiras de Macacu, 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 pollen scores represent risk levels, not direct pollen measurements. Higher scores indicate higher risk.
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).
