Pombal Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Pombal is high; mugwort is high; mold (alternaria) and mold (cladosporium) are moderate.
Pollen Tomorrow
Tomorrow (11 October 2026) mugwort remains high, mold (cladosporium) remains moderate, mold (alternaria) declining.
7-Day Trend
Over the next week mugwort, mold (alternaria), and mold (cladosporium) will increase; cypress, grass, and willow will remain stable.
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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) | None | 0/100 |
| Grass (Poaceae) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
| Mugwort (Artemisia) | High | 67/100 |
| Mold (Alternaria) | Moderate | 34/100 |
| Mold (Cladosporium) | Moderate | 35/100 |
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 | |
| Mugwort (Artemisia) | High | 67/100 | |
| Mold (Alternaria) | Low | 25/100 | |
| Mold (Cladosporium) | Moderate | 31/100 |
Local Environmental Conditions
Most of the area around the center of Pombal is built-up land, with some woodland and open grassland. With the Arunca River nearby, riverside vegetation along its banks contributes to the local mix. Olive stands out as the main allergenic tree nearby. Grasses add a sizeable share of the local pollen. Olive is unusually common here compared with most other locations, making it a particularly important local pollen source.
Olive leads the season in late spring, as temperatures climb to around 15°C, and tree pollen reaches its peak. Grasses take over in late spring and keep pollen in the air into early fall. Weeds on open ground add a smaller late peak from early summer into early fall. The olive period in late spring is usually the most intense time of year here.
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Frequently Asked Questions About Pollen in Leiria
Is pollen high in Pombal right now?
On 10 October 2026, overall pollen levels in Pombal are high. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Pombal tomorrow?
On 11 October 2026, pollen conditions in Pombal will be similar to today, with artemisia at high levels
Is pollen expected to decrease in Pombal this week?
According to the five-day outlook, artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Pombal?
On 10 October 2026, Artemisia is the dominant pollen source in Pombal. willow, cypress, and grass are not currently active.
When is pollen season in Pombal?
How often is the Pombal pollen forecast updated?
The Pombal pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Pombal 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 Pombal 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 Pombal, 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).
