Romans-sur-Isère Pollen Forecast - Today, Tomorrow and the Week Ahead
Pollen Today
Today (10 October) pollen in Romans-sur-Isère is moderate; mold (cladosporium) is moderate; mold (alternaria) is low.
Pollen Tomorrow
Tomorrow (11 October 2026) levels are similar to today.
7-Day Trend
Over the next week mold (alternaria) will increase; mold (cladosporium) will decrease; cypress, grass, willow, and mugwort 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) | None | 0/100 |
| Mold (Alternaria) | Low | 16/100 |
| Mold (Cladosporium) | Moderate | 28/100 |
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) | None | 0/100 | |
| Mold (Alternaria) | Low | 13/100 | |
| Mold (Cladosporium) | Moderate | 27/100 |
Local Environmental Conditions
The heart of Romans-sur-Isère is surrounded mainly by built-up land, which covers around 83% of the nearby area. Oak heads the list of allergenic trees nearby, ahead of juniper and alder. Grass pollen is plentiful, while ragweed and mugwort lead among the weeds. Ragweed is unusually common here compared with most other locations, making it a particularly important local pollen source.
First to flower is alder, in late winter. Tree pollen peaks in late spring, when the weather warms to around 15°C and oak and juniper are in full flower. Grasses take over in early summer, with temperatures around 20°C, and their pollen lingers into early fall. Ragweed and mugwort bring the strongest peak of the year from late summer into mid-fall. By late fall, pollen levels are low again.
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Frequently Asked Questions About Pollen in Auvergne-Rhône-Alpes
Is pollen high in Romans-sur-Isère right now?
Currently, there is no significant pollen in Romans-sur-Isère.
Will pollen levels change in Romans-sur-Isère tomorrow?
On 11 October 2026, pollen conditions in Romans-sur-Isère will be similar to today with no significant pollen expected.
Is pollen expected to decrease in Romans-sur-Isère this week?
According to the five-day outlook, pollen levels are expected to remain relatively stable.
Which pollen types are currently active in Romans-sur-Isère?
On 10 October 2026, there are no significant pollen types in Romans-sur-Isère.
When is pollen season in Romans-sur-Isère?
How often is the Romans-sur-Isère pollen forecast updated?
The Romans-sur-Isère pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Romans-sur-Isère 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 Romans-sur-Isère 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 Romans-sur-Isère, 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).
