Brejo Santo pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Brejo Santo is moderate; willow is moderate; cypress is low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week willow will increase; cypress 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 | 10/100 |
| Grass (Poaceae) | None | 0/100 |
| Willow (Salicaceae) | Moderate | 27/100 |
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 | 8/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Willow (Salicaceae) | Moderate | 26/100 |
Local Environmental Conditions
Brejo Santo lies in the Cariri region of Ceará at the foot of the Chapada do Araripe, where native caatinga scrub, irrigated agriculture, and the elevated chapada vegetation above contribute the main pollen sources. The semi-arid climate produces a compressed wet season, while the dry season concentrates pollen production and the Chapada escarpment creates locally different conditions throughout this Ceará Cariri municipality.
Brejo Santo's pollen season concentrates during the dry season, when irrigated agriculture and the elevated chapada vegetation above pollen disperses most readily across the area; the wet season brings frequent rainfall that interrupts counts for the rest of the year.
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Frequently Asked Questions About Pollen in Ceará
Is pollen high in Brejo Santo right now?
On 20 September 2026, overall pollen levels in Brejo Santo are moderate. Willow is the main contributor to airborne pollen, while cypress remain at lower levels
Will pollen levels change in Brejo Santo tomorrow?
On 21 September 2026, pollen conditions in Brejo Santo will be similar to today, with cypress at low levels, willow at moderate levels
Is pollen expected to decrease in Brejo Santo this week?
According to the five-day outlook, cypress pollen levels are expected to gradually decrease, while willow pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Brejo Santo?
On 20 September 2026, Willow is the dominant pollen source in Brejo Santo. cypress are also present but at lower levels. grass are not currently active.
When is pollen season in Brejo Santo?
How often is the Brejo Santo pollen forecast updated?
The Brejo Santo pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Brejo Santo 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 Brejo Santo 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 Brejo Santo, 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).
