Ponte de Lima pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Ponte de Lima 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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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 | 70/100 |
Local Environmental Conditions
Ponte de Lima's tree pollen is dominated by oak and plane, a pattern typical of Viana do Castelo and reinforced by its position on the Lima river valley in northern Portugal; late grass pollen adds further exposure from nearby farmland through the warmer months. Parks and leafier streets tend to register higher counts than the built-up core.
The pollen calendar in Ponte de Lima runs the winter-to-summer stretch from January to August: olive and plane first, a oak and plane peak through the middle stretch, then late grass pollen carrying things into summer. Mediterranean summer drought keeps late-season pollen modest here. Ponte de Lima's location on the Lima river valley in northern Portugal tends to soften the tail end of the season.
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Frequently Asked Questions About Pollen in Viana do Castelo
Is pollen high in Ponte de Lima right now?
On 20 September 2026, overall pollen levels in Ponte de Lima are high. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Ponte de Lima tomorrow?
On 21 September 2026, pollen conditions in Ponte de Lima will be similar to today, with artemisia at high levels
Is pollen expected to decrease in Ponte de Lima this week?
According to the five-day outlook, artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Ponte de Lima?
On 20 September 2026, Artemisia is the dominant pollen source in Ponte de Lima. cypress, grass, and willow are not currently active.
When is pollen season in Ponte de Lima?
How often is the Ponte de Lima pollen forecast updated?
The Ponte de Lima pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Ponte de Lima 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 Ponte de Lima 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 Ponte de Lima, 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).
