Pollen forecast by city › Zurich
Pollen forecast for Zurich today
Pollen levels in Zurich today by trees, grasses and weeds, the forecast for the coming days, and when each plant’s pollen season usually starts and peaks.
Grass, birch, ash, hazel, alder and mugwort pollen cause about 95 per cent of pollen allergies in Switzerland, according to MeteoSwiss. North of the Alps, hazel pollen levels are high from early February in most years, with alder a few days later. Ash starts shortly before birch, whose pollen levels are high from late March to early May; birch is rare in the forests here but widely planted, so levels in cities are high. Grass pollen levels are high from early or mid-May to mid-July. Since the 1980s, the hazel season has started about three weeks earlier, and the grass season about 11 days earlier.
Pollen today
- Trees0 · none
- Grasses1 · very low
- Weeds1 · very low
- Mugwort1 · very low
Data updated Mon, 12 Oct, 06:43, local time.
Pollen forecast for the next days
| Day | Overall | Trees | Grasses | Weeds | Mugwort |
|---|---|---|---|---|---|
| Tomorrow, Tue, 13 Oct | Overall1 · very low | Trees0 · none | Grasses1 · very low | Weeds1 · very low | Mugwort1 · very low |
| Wed, 14 Oct | Overall1 · very low | Trees0 · none | Grasses1 · very low | Weeds1 · very low | Mugwort1 · very low |
| Thu, 15 Oct | no data | ||||
| Fri, 16 Oct | no data | ||||
In bloom now
- Mugwortvery low
- Ragweed
Pollen season calendar for Zurich
When pollen of each plant is usually in the air in Zurich, month by month. The calendar is an estimate for a typical year; the actual start shifts with the weather by a week or two.
| Plant | January | February | March | April | May | June | July | August | September | October | November | December |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hazelseason Jan – Mar, peak Feb – Mar | ||||||||||||
| Alderseason Feb – Apr, peak Mar – Apr | ||||||||||||
| Birchseason Mar – May, peak Apr – May | ||||||||||||
| Ashseason Mar – May, peak Apr – May | ||||||||||||
| Cottonwoodseason Apr – Jun, peak Apr – May | ||||||||||||
| Oakseason Apr – Jun, peak May | ||||||||||||
| Pineseason Apr – Jun, peak May – Jun | ||||||||||||
| Grassesseason May – Sep, peak Jun – Aug | ||||||||||||
| Mugwortseason Jul – Oct, peak Aug – Sep | ||||||||||||
| Ragweedseason Aug – Nov, peak Sep – Oct |
On high-pollen days
- Pollen levels are usually highest on warm, dry and windy days; rain washes pollen out of the air for a while.
- Keep windows closed when the level is high and air rooms after rain.
- After a long time outdoors, change clothes and wash your hair; dry laundry indoors.
- Sunglasses help keep pollen out of your eyes.
- If you have allergy symptoms, talk to a doctor — this page does not replace medical advice.
About the data
Current levels and the forecast come from the Google Pollen API. It is a model forecast on the Universal Pollen Index (0–5), not a measurement from a local pollen trap. The season calendar is AllergoRadar’s estimate based on model data and published pollen calendars. Reference information only, not medical advice.
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