Lagoa Santa pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Lagoa Santa is high; cypress is high; willow is low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
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) | High | 52/100 |
| Grass (Poaceae) | None | 0/100 |
| Willow (Salicaceae) | Low | 18/100 |
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 | 61/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Willow (Salicaceae) | Low | 18/100 |
Local Environmental Conditions
Lagoa Santa lies on the Minas Gerais northern Belo Horizonte metropolitan fringe in the famous karst landscape that gave shelter to Luzia, where native cerrado trees, eucalyptus, and the lake shore vegetation are the main pollen sources. The cerrado climate produces a well-defined pollen season, with the dry season from May to September concentrating pollen dispersal and the wet summer months bringing frequent rainfall interruptions throughout.
In Lagoa Santa, pollen exposure builds through the dry months of May to September as native cerrado trees and eucalyptus pollen spreads freely, while the return of rain afterward regularly interrupts dispersal.
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Frequently Asked Questions About Pollen in Minas Gerais
Is pollen high in Lagoa Santa right now?
On 20 September 2026, overall pollen levels in Lagoa Santa are high. Cypress is the main contributor to airborne pollen, while willow remain at lower levels
Will pollen levels change in Lagoa Santa tomorrow?
On 21 September 2026, pollen conditions in Lagoa Santa will be similar to today, with cypress at high levels, willow at low levels
Is pollen expected to decrease in Lagoa Santa 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 Lagoa Santa?
On 20 September 2026, Cypress is the dominant pollen source in Lagoa Santa. willow are also present but at lower levels. grass are not currently active.
When is pollen season in Lagoa Santa?
How often is the Lagoa Santa pollen forecast updated?
The Lagoa Santa pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Lagoa Santa 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 Lagoa Santa 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 Lagoa Santa, 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. |
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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).
