Feira de Santana pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Feira de Santana is low; cypress and willow are low.
Pollen Tomorrow
Tomorrow (21 September 2026) cypress remains low, willow remains low, grass at low levels.
7-Day Trend
Over the next week grass will increase; cypress and willow will decrease.
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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 | 8/100 |
| Grass (Poaceae) | None | 0/100 |
| Willow (Salicaceae) | Low | 7/100 |
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 | 9/100 | |
| Grass (Poaceae) | Low | 1/100 | |
| Willow (Salicaceae) | Low | 6/100 |
Local Environmental Conditions
Feira de Santana's parks feature native Caatinga and Atlantic Forest transition species including aroeira and angico as the main tree pollen sources, with exposure varying between green areas and the more built-up city centre. Surrounding Bahia semi-arid scrubland and farmland contribute substantial grass and scrub pollen, with the dry season concentrating pollen dispersal.
Feira de Santana's pollen season is highest during the dry season from June to November, when native Caatinga and Atlantic Forest transition species release pollen alongside grass from urban green spaces. The wet season from March to June brings the most frequent rainfall interruptions, while the semi-arid tropical setting means the dry season concentrates pollen production and dispersal across the surrounding scrubland and farmland.
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Frequently Asked Questions About Pollen in Bahia
Is pollen high in Feira de Santana right now?
On 20 September 2026, overall pollen levels in Feira de Santana are low. Cypress is the main contributor to airborne pollen, while willow remain at lower levels
Will pollen levels change in Feira de Santana tomorrow?
On 21 September 2026, pollen conditions in Feira de Santana will be different from today, with cypress at low levels, grass at low levels, willow at low levels
Is pollen expected to decrease in Feira de Santana 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 Feira de Santana?
On 20 September 2026, Cypress is the dominant pollen source in Feira de Santana. willow are also present but at lower levels. grass are not currently active.
When is pollen season in Feira de Santana?
How often is the Feira de Santana pollen forecast updated?
The Feira de Santana pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Feira de Santana 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 Feira de Santana 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 Feira de Santana, 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).
