Pollen Count in Nantes
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Nantes, France has a lot of trees, grass, and flowers. They produce pollen. Pollen is a fine powder that floats in the air.
Updated: 2/25/2026
Spring is a big time for pollen in Nantes. Trees like oak, birch, and plane trees make a lot of pollen. This happens from March to May.
In summer, grasses and weeds make pollen. This is a problem for people in Nantes. The pollen count is usually high in June and July.
Nantes has a mild climate. Pollen is in the air for a long time. People in Nantes try to stay indoors when pollen counts are high.
Pollen Forecast Chart
Recommendations
When pollen concentrations reach a peak, we suggest these simple steps to help with hay fever. These tips are extra important on windy days when plants are in peak anthesis (the time when they release the most pollen).
- Wear masks if necessary
- Shower after going out
- Wear sunglasses if windy
- Close windows and doors
- Use an indoor air purifier
- Avoid wearing woolen clothes outside
- Limit outdoor activities
Annual Pollen Overview
Check out this month-by-month overview of the daily average pollen count in Nantes 🌾. This data is based on previous years and serves as a guideline to help you understand when different pollen seasons typically occur in your city.
| Alder | Birch | Grass | Mugwort | Olive | Ragweed | |
|---|---|---|---|---|---|---|
| Jan | 1.2 | 0 | 0 | 0 | 0 | 0 |
| Feb | 21.3 | 0 | 0 | 0 | 0 | 0 |
| Mar | 1 | 146.1 | 1.5 | 0 | 0 | 0 |
| Apr | 0.8 | 95.9 | 34 | 0 | 0.6 | 0 |
| May | 0 | 2.5 | 259.3 | 0 | 1.6 | 0 |
| Jun | 0 | 0.4 | 804 | 0.9 | 0 | 0 |
| Jul | 0 | 0 | 192 | 46.5 | 0 | 0 |
| Aug | 0 | 0 | 51.2 | 31.1 | 0 | 2 |
| Sep | 0 | 0 | 4.3 | 28.9 | 0 | 4 |
| Oct | 0 | 0 | 0.2 | 1 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(32 km)