Gorinchem pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Gorinchem is low; mugwort is low.
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.
Explore Forecasts
Air Quality
Pollen in Other Cities
Air Quality in Other Cities
Get More in Our App
Local pollen and air quality forecasts, interactive pollen maps and route profiles
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) | Low | 2/100 |
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) | Low | 6/100 |
Local Environmental Conditions
Gorinchem's urban greenery relies mainly on oak, birch, and linden, which dominate local tree pollen output, with the leafier outskirts typically seeing higher counts than the compact centre. Nearby, the confluence of the Merwede and Linge rivers together with Zuid-Holland farmland contributes further grass and tree pollen, in keeping with Gorinchem's character as a fortress river town.
January marks the start of Gorinchem's pollen year, led by hazel and alder before birch dominates through to April, with the season closing out in August. Through April and May, oak and ash add to the load, with grass then leading through June and into July. Air movement here is affected by the confluence of the Merwede and Linge rivers, and the fortified old town on the river delta adds a local wrinkle to the Gorinchem pollen picture.
Get pollen & AQ on Strava
Follow your environmental exposure and performance with the free Airmine-Strava integration. See your pollen and air quality exposure for every Strava activity.
Resource Hub
Frequently Asked Questions About Pollen in Zuid-Holland
Is pollen high in Gorinchem right now?
On 20 September 2026, overall pollen levels in Gorinchem are low. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Gorinchem tomorrow?
On 21 September 2026, pollen conditions in Gorinchem will be similar to today, with artemisia at low levels
Is pollen expected to decrease in Gorinchem this week?
According to the five-day outlook, artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Gorinchem?
On 20 September 2026, Artemisia is the dominant pollen source in Gorinchem. cypress, grass, and willow are not currently active.
When is pollen season in Gorinchem?
How often is the Gorinchem pollen forecast updated?
The Gorinchem pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Gorinchem 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 Gorinchem 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 Gorinchem, 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).
