Pollen Count in St-Malo
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St-Malo, France has pollen seasons. Trees release pollen in spring. Oak, birch, and hazel trees produce a lot of pollen. This happens from March to May.
Updated: 6/12/2026
Grass pollen is a problem in summer. From May to July, grass pollen fills the air. People notice more pollen on sunny and windy days.
Weed pollen is a issue in late summer. From August to October, weeds like ragweed release pollen. This pollen can travel far and cause problems.
Weather affects pollen seasons. Rain helps wash pollen away. Warm and sunny weather makes pollen spread. Windy days make pollen travel far and wide.
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 St-Malo 🌾. 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 | 0 | 0 | 0 | 0 | 0 | 0 |
| Feb | 7.8 | 0 | 0 | 0 | 0 | 0 |
| Mar | 118 | 53.3 | 0.4 | 0 | 0 | 0 |
| Apr | 3.9 | 635.2 | 18.1 | 0 | 0 | 0 |
| May | 0.5 | 39.3 | 102.8 | 0 | 2.2 | 0 |
| Jun | 0 | 0 | 384.1 | 1 | 0.3 | 0 |
| Jul | 0 | 0 | 137.4 | 15 | 0 | 0 |
| Aug | 0 | 0 | 42.7 | 8.6 | 0 | 0.6 |
| Sep | 0 | 0 | 5.8 | 5.6 | 0 | 0.8 |
| Oct | 0 | 0 | 0.6 | 1.2 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0.1 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(11 km)