Bertioga pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Bertioga is moderate; cypress is moderate; 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.
Explore Forecasts
Air Quality
Pollen in Other Cities
Air Quality in Other Cities
Get More in Our App
Local pollen and air quality forecasts, interactive pollen maps and route profiles
Features and forecast availability vary by region.
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) | None | 0/100 |
| Willow (Salicaceae) | Low | 9/100 |
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) | None | 0/100 | |
| Willow (Salicaceae) | Low | 11/100 |
Local Environmental Conditions
Bertioga occupies the São Paulo low Atlantic Forest coast between Santos and Ubatuba at the entry of the Bertioga Channel, where native Atlantic Forest trees, restinga coastal scrub, and mangrove vegetation are the main pollen sources. The very wet tropical coastal climate provides very frequent rainfall interruptions, while the Atlantic Ocean position means onshore breezes can periodically disperse pollen throughout this important São Paulo Atlantic Forest coastal resort municipality.
Bertioga's pollen season follows the region's typical pattern, led by restinga coastal scrub and mangrove vegetation pollen, with exposure varying across the year according to local seasonal rainfall and temperature patterns.
Get pollen & AQ on Strava
Follow your environmental exposure and performance with the free Airmine-Strava integration. See your pollen and air quality exposure for every Strava activity.
Resource Hub
Frequently Asked Questions About Pollen in São Paulo
Is pollen high in Bertioga right now?
On 20 September 2026, overall pollen levels in Bertioga are moderate. Cypress is the main contributor to airborne pollen, while willow remain at lower levels
Will pollen levels change in Bertioga tomorrow?
On 21 September 2026, pollen conditions in Bertioga will be similar to today, with cypress at moderate levels, willow at low levels
Is pollen expected to decrease in Bertioga 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 Bertioga?
On 20 September 2026, Cypress is the dominant pollen source in Bertioga. willow are also present but at lower levels. grass are not currently active.
When is pollen season in Bertioga?
How often is the Bertioga pollen forecast updated?
The Bertioga pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Bertioga 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 Bertioga 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 Bertioga, 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).
