Pollen Count in Ascot
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In Ascot, tree pollen is highest from late March to early May. Birch, oak, and hazelnut trees release pollen during this time.
Updated: 3/21/2026
From mid-May to July, grass pollen levels rise. This is the most common pollen allergy. Many people react to ryegrass, a type of grass often found in parks and fields.
Weed pollen season starts in late June and ends in early November. Nettle, dock, and sorrel are common weeds that release pollen. Some people react strongly to these pollen seasons.
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 Ascot 🌾. 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 | 0.4 | 0 | 0 | 0 | 0 | 0 |
| Feb | 92.2 | 0 | 0 | 0 | 0 | 0 |
| Mar | 336.6 | 149.1 | 0 | 0 | 0 | 0 |
| Apr | 0.7 | 505.9 | 3.3 | 0 | 0.2 | 0 |
| May | 0 | 6.8 | 84.1 | 0 | 0.6 | 0 |
| Jun | 0 | 0.2 | 1104.7 | 49.6 | 0 | 0 |
| Jul | 0 | 0 | 382.1 | 182.4 | 0 | 0 |
| Aug | 0 | 0 | 62.6 | 30.9 | 0 | 0.3 |
| Sep | 0 | 0 | 4.2 | 0.6 | 0 | 4.5 |
| Oct | 0 | 0 | 0 | 0 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(3 km)