Porto Sant'Elpidio pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Porto Sant'Elpidio is high; mugwort is high; grass is low.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week grass and mugwort will decrease; cypress and 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) | None | 0/100 |
| Grass (Poaceae) | Low | 5/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | High | 55/100 |
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) | None | 0/100 | |
| Grass (Poaceae) | Low | 6/100 | |
| Willow (Salicaceae) | None | 0/100 | |
| Mugwort (Artemisia) | High | 53/100 |
Local Environmental Conditions
Porto Sant'Elpidio sits on the Adriatic coast of the Marche, in the Marche region; olive and oak are the leading tree pollen sources locally, and grass adds to totals from local farmland and green spaces through spring. The surrounding Marche countryside shapes how exposure varies across the built-up and open parts of the area, with noticeably calmer conditions once the main olive and oak peak has passed.
From an early plane and hazel start, Porto Sant'Elpidio moves into a olive and oak peak before grass extends the season into early summer, with January through August covering the year's exposure in this part of Marche. Mediterranean summer drought keeps late-season pollen modest here, a pattern shaped in part by the town's position on the Adriatic coast of the Marche.
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Frequently Asked Questions About Pollen in Marche
Is pollen high in Porto Sant'Elpidio right now?
On 20 September 2026, overall pollen levels in Porto Sant'Elpidio are high. Artemisia is the main contributor to airborne pollen, while grass remain at lower levels
Will pollen levels change in Porto Sant'Elpidio tomorrow?
On 21 September 2026, pollen conditions in Porto Sant'Elpidio will be similar to today, with artemisia at high levels, grass at low levels
Is pollen expected to decrease in Porto Sant'Elpidio this week?
According to the five-day outlook, artemisia and grass pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Porto Sant'Elpidio?
On 20 September 2026, Artemisia is the dominant pollen source in Porto Sant'Elpidio. grass are also present but at lower levels. willow and cypress are not currently active.
When is pollen season in Porto Sant'Elpidio?
How often is the Porto Sant'Elpidio pollen forecast updated?
The Porto Sant'Elpidio pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Porto Sant'Elpidio 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 Porto Sant'Elpidio 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 Porto Sant'Elpidio, 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).
