Pollen Count in Grimsby
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Values in gr/m³ (pollen grains per cubic metre).
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Grimsby has high pollen counts in spring. Trees release pollen in March and April. Oak, ash, and hazel trees are the biggest polluters. Pollen spreads in warm, windy weather.
Grass pollen is a problem in late spring and early summer. June is usually the worst month. Pollen counts are high in fields and parks.
Some plants release pollen in late summer. These include nettles and ragwort. Weeds and wildflowers add to pollen counts.
Winter months have low pollen counts. December, January, and February are usually calm.
Updated: 3 Oct 2026.
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 Grimsby 🌾. 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 | 14 | 0 | 0 | 0 | 0 | 0 |
| Mar | 89.9 | 23.5 | 0 | 0 | 0 | 0 |
| Apr | 6.3 | 490.1 | 0.5 | 0 | 0 | 0 |
| May | 0.1 | 71.1 | 32.9 | 0 | 0 | 0 |
| Jun | 0 | 0 | 921 | 13.5 | 0 | 0 |
| Jul | 0 | 0.6 | 308.5 | 77.3 | 0 | 0 |
| Aug | 0 | 0 | 46.8 | 19.8 | 0 | 0 |
| Sep | 0 | 0 | 2.3 | 0.2 | 0 | 0.6 |
| Oct | 0 | 0 | 0 | 0 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
Values in gr/m³ (pollen grains per cubic metre).
(26 km)