To help you plan your outdoor activities, the ORIGINAL Weather Station allows you to view pollen information on the Netatmo Weather mobile app.

Tree Pollen:
Available data indicate that tree pollen is the earliest seasonal allergen, generally active from late March to mid-May. The most common sources are birch, oak, and ash. For example, birch pollen is considered high starting from 81 to 200 grains per cubic meter, and it affects about 25% of people with hay fever. This makes it a significant spring allergen.

Grass Pollen:
It appears that grass pollen is the most common cause of hay fever, with a season extending from mid-May to July. It has two peaks—early June and early July—with high concentrations of 50 to 150 grains per cubic meter. Its widespread impact makes it a major concern for people with allergies in late spring and summer.

Weed Pollen:
Data suggest that weed pollen is present from early spring to late fall, with the main season running from late June to September. Sources include nettle, mugwort, and plantain. Although high concentration thresholds are less frequently specified, the prolonged duration of its season represents an ongoing risk for people with allergies.

Today's Pollen Index: Trees Herbs Grasses Scale from 0 (“None”) to 4 (“Very High”)

For each category: Today’s index and protection tips 72-hour forecast Ability to switch from one category to another via horizontal scrolling.

Updated June 24, 2025 11:23