Pollen Count in Gatwick
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Gatwick has two main pollen seasons. Tree pollen season starts in March and lasts until May. Trees like oak, ash, and hazel release pollen during this time.
Updated: 3/21/2026
Grass pollen season starts in May and lasts until July. Grasses release a lot of pollen, making it hard for people outside during this time.
Weed pollen season starts in August and lasts until October. Weeds like ragweed and nettle release pollen, affecting people who are sensitive.
Pollen counts are usually higher on warm, sunny days. Rainy days bring lower pollen counts. People track pollen counts to plan their activities.
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 Gatwick 🌾. 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 | 0.2 | 0 | 0 | 0 | 0 | 0 |
| Feb | 18.8 | 0 | 0 | 0 | 0 | 0 |
| Mar | 118.2 | 104.4 | 0 | 0 | 0 | 0 |
| Apr | 0.6 | 413.8 | 5 | 0 | 0.3 | 0 |
| May | 0 | 6.4 | 91.1 | 0 | 0.8 | 0 |
| Jun | 0 | 0.3 | 1084.6 | 37.4 | 0 | 0 |
| Jul | 0 | 0 | 394.2 | 113.6 | 0 | 0 |
| Aug | 0 | 0 | 62.9 | 13.6 | 0 | 0.4 |
| Sep | 0 | 0 | 4.6 | 0.6 | 0 | 4.4 |
| Oct | 0 | 0 | 0.2 | 0 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(1 km)