Pollen Count in Le Mans
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Le Mans has four main pollen seasons. Spring starts in March. Trees like oak, birch, and plane release pollen. This makes spring air in Le Mans thick with pollen.
Updated: 2/11/2026
Summer pollen season comes in June and July. Grasses and flowers bloom. Their pollen spreads quickly. People notice yellow dust on cars and surfaces.
Late summer brings more pollen. Weeds and shrubs release their pollen. August and September are peak months. Pollen counts remain high in Le Mans.
Winter is calm. Few plants bloom. December, January, and February have low pollen counts. Le Mans' air is clean and clear during these months.
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 Le Mans 🌾. 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 | 0 | 0 | 0 | 0 | 0 |
| Feb | 36.5 | 0 | 0 | 0 | 0 | 0 |
| Mar | 0.9 | 154.4 | 0.7 | 0 | 0 | 0 |
| Apr | 0.5 | 155.7 | 38.9 | 0 | 0.5 | 0 |
| May | 0 | 3.3 | 319.9 | 0 | 1 | 0 |
| Jun | 0 | 0.4 | 1025.8 | 2.5 | 0 | 0 |
| Jul | 0 | 0 | 325.9 | 44.7 | 0.1 | 0 |
| Aug | 0 | 0 | 75.9 | 27.2 | 0 | 2 |
| Sep | 0 | 0 | 5.3 | 22.6 | 0 | 7.4 |
| Oct | 0 | 0 | 0.2 | 1 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(81 km)