Pollen Count in Arcachon
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Arcachon's pollen season starts in February. Trees like oak, beech, and pine release pollen. It's a big problem for people who visit or live there.
Updated: 2/25/2026
Pollen counts go up in March and April. Grasses and bushes also start releasing pollen. Spring is a difficult time for people in Arcachon.
May and June are peak months. Pollen from trees and grasses fills the air. People try to stay indoors when pollen counts are high.
By July, pollen counts decrease. Summer months have less pollen. People can enjoy the beach and outdoors without as much discomfort.
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 Arcachon 🌾. 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 | 5.9 | 0 | 0 | 0 | 0 | 0 |
| Feb | 21.5 | 0 | 0 | 0 | 0 | 0 |
| Mar | 3.9 | 127.7 | 2.6 | 0 | 0.1 | 0 |
| Apr | 4.8 | 31.9 | 23.4 | 0 | 2.1 | 0 |
| May | 0.1 | 2 | 65.2 | 0 | 7.5 | 0 |
| Jun | 0 | 0.4 | 202.5 | 0 | 1.5 | 0 |
| Jul | 0 | 0 | 41.9 | 10.5 | 0 | 0 |
| Aug | 0 | 0 | 12.1 | 6 | 0 | 1.2 |
| Sep | 0 | 0 | 2 | 8.1 | 0 | 2.8 |
| Oct | 0 | 0 | 0.2 | 0.2 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(6 km)