Pollen Count in The Hague
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The Hague has different pollen seasons. Tree pollen starts in March. It's one of the earliest types of pollen. Many trees release pollen at this time.
Updated: 3/16/2026
Grass pollen season starts in May. It's one of the worst times for people with pollen problems. Grass pollen counts are usually highest in June.
Weed pollen season starts in July. It lasts until September. Some weeds release pollen in summer. This pollen can cause problems.
Pollen counts are usually low in winter. December, January, and February have little to no pollen. This is a welcome break from pollen.
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 The Hague 🌾. 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 | 2 | 0 | 0 | 0 | 0 | 0 |
| Mar | 91 | 14.6 | 0 | 0 | 0 | 0 |
| Apr | 28.8 | 1232.3 | 1.3 | 0 | 0 | 0 |
| May | 0 | 79.6 | 48.2 | 0 | 0.1 | 0 |
| Jun | 0 | 0 | 733.5 | 37.1 | 0 | 0 |
| Jul | 0 | 0.1 | 295.6 | 310.8 | 0 | 0 |
| Aug | 0 | 0 | 56 | 75.1 | 0 | 0.1 |
| Sep | 0 | 0 | 2.1 | 0.5 | 0 | 0.5 |
| Oct | 0 | 0 | 0 | 0 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(15 km)