Skip to main content

Periods with high pollen counts

June 3, 2025

When pollen counts rise, many people immediately feel discomfort in their eyes, nose and airways. Periods of high pollen counts can be very stressful - but there is help available.

 

High pollen count - Spring and summer

High pollen count

The pollen count shows how much pollen is in the air - and it has a big impact on those with pollen allergies. The higher the count, the more strain your airways and eyes can become.

Pollen counts vary depending on the season and weather. Typically, it peaks in spring and summer when trees, grasses and weeds bloom. If you're sensitive to pollen, you may start to feel discomfort as early as March and continue until September.

What is pollen?

Pollen is tiny, microscopic dust grains that plants emit to reproduce. When trees, grasses and weeds bloom, large amounts of pollen are released and spread by the wind.

For most people, pollen is harmless - but if you have a pollen allergy, your immune system reacts as if it were a threat. This triggers an allergic reaction that can cause symptoms in the nose, eyes and airways.

The most common symptoms

Hay fever is one of the most common reactions to pollen. Symptoms can vary from person to person - but there are some typical signs.

Signs of pollen allergy

  • Itchy or watery eyes
  • Stuffy or runny nose
  • Sneezing and coughing
  • Fatigue and difficulty concentrating

If you experience these symptoms at the same time every year, it could be a sign of allergies that we can help you identify and treat.

When is the pollen count highest?

It depends on the type of pollen. In Denmark, we typically see three main periods of high pollen counts:

  • Spring: Tree pollen from e.g. elm, birch and hazel
  • Summer: Grass pollen - one of the most annoying
  • Late summer: Weed pollen, especially ragwort

Wind is also important - windy weather can spread pollen over long distances, while rain can "wash the air clean" for a while.

List of pollen in Denmark

In Denmark, 23 different types of allergenic pollen and two types of mold spores that can affect people with allergies or asthma are regularly measured. These measurements are carried out by Asthma-Allergy Denmark and are based on data from measuring stations in Copenhagen and Viborg.

Tree pollen

  • Electricity
  • Hazel
  • Elm
  • Ene-taks
  • Ash
  • Birch
  • Poplar
  • Mushroom
  • Plane tree
  • Beech
  • Harrow
  • Hornbeam
  • Elder
  • Guy
  • Spruce

Grass pollen

  • Grass

Weed pollen

  • Bynke
  • Ambrosia

Mold spores

  • Cladosporium
  • Alternaria

What can you do yourself?

There are several steps you can take to reduce your discomfort during pollen season:

  • Only vent early in the morning or late at night
  • Wear sunglasses outdoors
  • Avoid drying clothes outside
  • Wash your hair and change clothes when you've been out

These small everyday adjustments can make a big difference to how much pollen you are exposed to.

Treatment of pollen allergy

At Doctors Denmark, we can help you with both diagnosis and treatment. An allergy test can determine which types of pollen you react to.

Medical options

  • Antihistamines in tablet form
  • Nasal spray and eye drops
  • Allergy vaccination (immunotherapy) for severe cases

Together we will find the solution that best suits your needs and your everyday life.

When symptoms get worse

If left untreated, your allergy can progress and affect your quality of life.

For some, it also leads to asthma or frequent sinus infections. That's why it's important to take the symptoms seriously - especially if they return year after year.

Fast help - when you need it

With us, you get an appointment quickly - often the same day. We understand how stressful it is to deal with symptoms that affect both sleep and mood.

You can also make an appointment in the evening or on weekends if that suits you better. It should be easy and convenient to get help when you're feeling unwell.

Follow today's pollen count

You can follow today's pollen count at Asthma-Allergy Denmark. It gives you a better opportunity to plan your day.

By knowing the pollen situation, you can avoid the worst times of day - and be better prepared with medication and precautions.