Hyères pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Hyères is high; mugwort is high; grass is low.
Pollen Tomorrow
Tomorrow (21 September 2026) mugwort remains high, grass no longer expected.
7-Day Trend
Over the next week grass will increase; mugwort will decrease; cypress 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) | Low | 6/100 |
| 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 | 65/100 |
Local Environmental Conditions
Hyères' Gapeau River corridor and the Iles d'Or coastal scrubland feature olive, palm, and pine as the main tree pollen sources, with exposure varying between these green areas and the more built-up resort city centre. Surrounding Var farmland and garrigue contribute substantial grass and scrub pollen, while sea breezes can periodically disperse pollen and the Massif des Maures contributes additional tree pollen from the north.
Hyères' Mediterranean coastal position produces one of the warmest and driest spring pollen seasons in continental France. Olive, palm, and pine open the season from January before grass from surrounding Var farmland peaks through March and April. The Iles d'Or coastline means sea breezes can periodically disperse pollen, while the Massif des Maures contributes tree pollen from the north and the hot summer ends the season very abruptly.
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Frequently Asked Questions About Pollen in Provence-Alpes-Côte d’Azur
Is pollen high in Hyères right now?
On 20 September 2026, overall pollen levels in Hyères are high. Artemisia is the main contributor to airborne pollen, while grass remain at lower levels
Will pollen levels change in Hyères tomorrow?
On 21 September 2026, pollen conditions in Hyères will be different from today, with artemisia at high levels
Is pollen expected to decrease in Hyères this week?
According to the five-day outlook, artemisia pollen levels are expected to gradually decrease, while grass pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Hyères?
On 20 September 2026, Artemisia is the dominant pollen source in Hyères. grass are also present but at lower levels. cypress and willow are not currently active.
When is pollen season in Hyères?
How often is the Hyères pollen forecast updated?
The Hyères pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Hyères 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 Hyères 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 Hyères, 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).
