Óbidos pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Óbidos is high; mugwort is high.
Pollen Tomorrow
Tomorrow (21 September 2026) levels are similar to today.
7-Day Trend
Over the next week mugwort will increase; cypress, grass, and willow will remain stable.
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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) | None | 0/100 |
| Grass (Poaceae) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | High | 70/100 |
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) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 | |
| Mugwort (Artemisia) | High | 69/100 |
Local Environmental Conditions
Located on a hilltop above the Óbidos Lagoon on the Silver Coast, Óbidos in Leiria draws most of its tree pollen from olive and cypress, while grass pollen contributes further exposure as the season progresses. Green spaces close to the built-up centre see noticeably different totals than the more open outskirts nearby, where surrounding farmland and woodland add their own seasonal contribution to the mix.
cypress and hazel opens the pollen season in Óbidos as early as February, with olive and cypress building through the following weeks before grass pollen carries exposure into early summer; the overall window runs January through August. Mediterranean summer drought keeps late-season pollen modest here. Conditions on a hilltop above the Óbidos Lagoon on the Silver Coast shape how quickly pollen disperses once the peak has passed.
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Resource Hub
Sports venues in Óbidos 1 sports venue
Frequently Asked Questions About Pollen in Leiria
Is pollen high in Óbidos right now?
On 20 September 2026, overall pollen levels in Óbidos are high. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Óbidos tomorrow?
On 21 September 2026, pollen conditions in Óbidos will be similar to today, with artemisia at high levels
Is pollen expected to decrease in Óbidos this week?
According to the five-day outlook, artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Óbidos?
On 20 September 2026, Artemisia is the dominant pollen source in Óbidos. willow, cypress, and grass are not currently active.
When is pollen season in Óbidos?
How often is the Óbidos pollen forecast updated?
The Óbidos pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Óbidos 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 Óbidos 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 Óbidos, 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).
