Japeri pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Japeri is low; cypress is low. Tomorrow (17 July 2026) levels are similar. Over the following five days cypress will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

For long term forecasts and maps, see the Airmine app

Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

Use our Strava plugin to check your own exposure.

Japeri extends through the Rio de Janeiro Baixada Fluminense lowlands, where native Atlantic Forest remnants, eucalyptus, and introduced urban trees are the main pollen sources. The tropical climate supports year-round pollen production, while the wet summer months bring the most frequent rainfall interruptions and the flat Baixada Fluminense landscape allows pollen to disperse widely throughout this Rio de Janeiro lowland suburban municipality.

Today - 16 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    11/100

  • Grass (Poaceae):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Amaranthaceae:

    None

    0/100

High pollen levels may trigger sneezing, itchy eyes, and congestion. Airmine's neighbourhood estimates use satellites to map local vegetation and a statistical prediction model, updated four times daily.

Tomorrow - 17 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    16/100

  • Grass (Poaceae):

    None

    0/100

  • Willow (Salicaceae):

    None

    0/100

  • Amaranthaceae:

    None

    0/100

Air quality in Japeri

View air quality

Frequently Asked Questions

Is pollen high in Japeri right now?

On 16 July 2026, overall pollen levels in Japeri are low. Cypress is the main contributor to airborne pollen

Will pollen levels change in Japeri tomorrow?

On 17 July 2026, pollen conditions in Japeri will be similar to today, with cypress at low levels

Is pollen expected to decrease in Japeri this week?

According to the five-day outlook, cypress pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.

Which pollen types are currently active in Japeri?

On 16 July 2026, Cypress is the dominant pollen source in Japeri. willow and amaranthaceae are not currently active.

When is pollen season in Japeri?
The dry season brings Japeri's heaviest pollen exposure, led by native Atlantic Forest remnants and introduced urban trees pollen, before the wet season restores more frequent rainfall interruptions.
How often is the Japeri pollen forecast updated?

The Japeri pollen forecast is updated four times daily. See the timestamp below for the most recent update.

Does pollen in Japeri 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 Japeri 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 Japeri, 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.

Want to see pollen forecasts for other cities in Brazil?

Check pollen in other popular cities:

Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Japeri.

For long term forecasts and maps, see the Airmine app

Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.