São José Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in São José is low; cypress and grass are low.
Pollen Tomorrow
Tomorrow (11 October 2026) cypress no longer expected, grass no longer expected.
7-Day Trend
Over the next week cypress, grass, and willow will increase.
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Pollen Risk
Today - 10 October
| Pollen species | Level | Value |
|---|---|---|
| Alder (Alnus) | None | 0/100 |
| Birch (Betula) | None | 0/100 |
| Hazel (Corylus) | None | 0/100 |
| Cypress (Cupressaceae) | Low | 1/100 |
| Grass (Poaceae) | Low | 2/100 |
| Willow (Salicaceae) | None | 0/100 |
Tomorrow - 11 October
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Alder (Alnus) | None | 0/100 | — |
| Birch (Betula) | None | 0/100 | — |
| Hazel (Corylus) | None | 0/100 | — |
| Cypress (Cupressaceae) | None | 0/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 |
Local Environmental Conditions
The heart of São José sits among a blend of open water and built-up land, plus some woodland. In the immediate area, tree cover makes trees an important source. Street trees, private gardens and mown lawns add to local pollen in the more built-up surroundings. Roadside verges and patches of open ground provide further room for grasses and weeds.
Tree pollen comes first, peaking in early spring. Grasses take over in mid-spring, with temperatures around 20°C, and their pollen lingers into mid-fall. Weeds on open ground add a smaller late peak from early summer into early fall. Mold spores are in the air most of the year too, rising after rain.
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Frequently Asked Questions About Pollen in Santa Catarina
Is pollen high in São José right now?
On 10 October 2026, overall pollen levels in São José are low. Cypress is the main contributor to airborne pollen, while grass remain at lower levels
Will pollen levels change in São José tomorrow?
On 11 October 2026, pollen conditions in São José will be similar to today with no significant pollen expected.
Is pollen expected to decrease in São José this week?
According to the five-day outlook, cypress, grass, and willow pollen levels will increase later in the week.
Which pollen types are currently active in São José?
On 10 October 2026, Cypress is the dominant pollen source in São José. grass are also present but at lower levels. willow are not currently active.
When is pollen season in São José?
How often is the São José pollen forecast updated?
The São José pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in São José 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 São José 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 São José, 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 pollen scores represent risk levels, not direct pollen measurements. Higher scores indicate higher risk.
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).
