Pollen Count in Wilhelmshaven
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Wilhelmshaven has four main pollen seasons. Tree pollen starts in March. Many trees release pollen at this time. It's a big problem for people.
Updated: 4/23/2026
Grass pollen season starts in May. It lasts all summer. Grasses release a lot of pollen. This makes people feel sick outside.
Ragweed pollen season starts in August. It ends in October. Ragweed plants grow everywhere. They make a lot of pollen.
Weed pollen season starts in September. It ends in November. Some weeds release pollen in fall. This pollen makes people feel sick too.
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 Wilhelmshaven 🌾. 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 | 23.6 | 0 | 0 | 0 | 0 | 0 |
| Mar | 682.8 | 10.7 | 0 | 0 | 0 | 0 |
| Apr | 7.8 | 1041.4 | 10.2 | 0 | 0 | 0 |
| May | 1.3 | 293.9 | 103.5 | 0 | 0 | 0 |
| Jun | 0 | 0.4 | 690.3 | 18.7 | 0.3 | 0 |
| Jul | 0 | 0.3 | 274 | 146.2 | 0 | 0 |
| Aug | 0 | 0 | 71.6 | 49.1 | 0 | 0.4 |
| Sep | 0 | 0 | 12.4 | 0.8 | 0 | 3.4 |
| Oct | 0 | 0 | 0.7 | 0 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(30 km)