Reims pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Reims is low; mugwort is low.
Pollen Tomorrow
Tomorrow (21 September 2026) mugwort no longer expected.
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 | 1/100 |
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) | None | 0/100 |
Local Environmental Conditions
Reims' Parc de Champagne and the Vesle River corridor feature oak, birch, and linden as the main tree pollen sources, with exposure varying between these green areas and the more built-up city centre. Surrounding Champagne vineyard farmland and the Montagne de Reims woodland contribute substantial tree and grass pollen, while the Marne valley channels airflows and concentrates pollen across the historic cathedral city.
Reims sits in one of France's most important champagne landscapes, where the Marne valley concentrates pollen under calm conditions. Hazel and alder open the season from January before birch peaks through April, with oak and ash following through May. Grass from surrounding vineyard farmland and Montagne de Reims woodland peaks through June and July, while frequent oceanic rainfall provides regular interruptions throughout.
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
Sports venues in Reims 1 sports venue
Frequently Asked Questions About Pollen in Grand Est
Is pollen high in Reims right now?
On 20 September 2026, overall pollen levels in Reims are low. Artemisia is the main contributor to airborne pollen
Will pollen levels change in Reims tomorrow?
On 21 September 2026, pollen conditions in Reims will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Reims this week?
According to the five-day outlook, artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Reims?
On 20 September 2026, Artemisia is the dominant pollen source in Reims. cypress, grass, and willow are not currently active.
When is pollen season in Reims?
How often is the Reims pollen forecast updated?
The Reims pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Reims 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 Reims 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 Reims, 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).
