Paulo Afonso pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Paulo Afonso is moderate; cypress is moderate; grass and willow are low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week cypress and grass will decrease; willow 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) | Moderate | 26/100 |
| Grass (Poaceae) | Low | 19/100 |
| Willow (Salicaceae) | Low | 8/100 |
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) | Moderate | 26/100 | |
| Grass (Poaceae) | Low | 12/100 | |
| Willow (Salicaceae) | Low | 8/100 |
Local Environmental Conditions
Paulo Afonso commands the Bahia São Francisco River valley at the famous falls as a major hydropower centre, where native caatinga scrub, riparian gallery forest along the São Francisco, and dam reservoir shoreline vegetation are the main pollen sources. The very semi-arid climate produces a compressed wet season, while the dry season concentrates pollen production and the São Francisco River contributes distinctive riparian pollen throughout.
Expect the strongest pollen exposure in Paulo Afonso during the dry season, when native caatinga scrub and dam reservoir shoreline vegetation pollen disperses most easily, while the wet season brings the regular relief of rainfall.
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Frequently Asked Questions About Pollen in Bahia
Is pollen high in Paulo Afonso right now?
On 20 September 2026, overall pollen levels in Paulo Afonso are moderate. Cypress is the main contributor to airborne pollen, while grass and willow remain at lower levels
Will pollen levels change in Paulo Afonso tomorrow?
On 21 September 2026, pollen conditions in Paulo Afonso will be similar to today, with cypress at moderate levels, grass at low levels, willow at low levels
Is pollen expected to decrease in Paulo Afonso this week?
According to the five-day outlook, cypress and grass pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Paulo Afonso?
On 20 September 2026, Cypress is the dominant pollen source in Paulo Afonso. grass and willow are also present but at lower levels.
When is pollen season in Paulo Afonso?
How often is the Paulo Afonso pollen forecast updated?
The Paulo Afonso pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Paulo Afonso 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 Paulo Afonso 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 Paulo Afonso, 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).
