Pollen Counts in Lithuania
Check daily pollen forecasts, the pollen map, seasonal trends, and all the cities we cover in Lithuania. Forecasts update every day, so check back regularly during pollen season.
Updated: 6 Nov 2026.
Lithuania Pollen Map
- Alder
- Birch
- Grass
- Mugwort
- Olive
- Ragweed
Lithuania's Pollen Seasons
In Lithuania, tree pollen starts with alder in March. Birch follows in April, when pollen is busiest overall. Birch is also the most common pollen type across the year. Olive pollen is recorded in April and again in June.
Grass pollen season comes in summer, with grass releasing pollen in June and July. These months add to the pollen in the air after the spring tree season. People with allergies may notice pollen during this time.
Weed pollen arrives later in the year. Mugwort releases pollen in July and August, while ragweed pollen is recorded in August and September. Their seasons overlap in August, extending weed pollen into early autumn in Lithuania.
Overall, the measured pollen season stretches from alder in March to ragweed in September. The main changes follow the calendar: tree pollen comes first, grass pollen follows, and weed pollen continues later into summer and early autumn.
Pollen Calendar for Lithuania
Typical pollen calendar for Lithuania, averaged across 10 cities from previous years. Alder peaks in March, Birch peaks in April, Grass peaks in June, Mugwort peaks in August, Ragweed peaks in September. Use it to see which months each pollen type usually rises and falls.
| Alder | Birch | Grass | Mugwort | Olive | Ragweed | |
|---|---|---|---|---|---|---|
| Jan | 3.8 | 0 | 0 | 0 | 0 | 0 |
| Feb | 23.3 | 0 | 0 | 0 | 0 | 0 |
| Mar | 232.6 | 112.4 | 0 | 0 | 0 | 0 |
| Apr | 6.3 | 4935.1 | 2.7 | 0 | 0.1 | 0 |
| May | 0.8 | 698.4 | 39.5 | 0 | 0 | 0 |
| Jun | 0 | 9.7 | 351.6 | 0.1 | 0 | 0 |
| Jul | 0 | 0.4 | 282 | 126.1 | 0 | 0 |
| Aug | 0 | 0 | 61.8 | 151.5 | 0 | 18.4 |
| Sep | 0 | 0 | 9.4 | 1.2 | 0 | 54.4 |
| Oct | 0 | 0 | 0.5 | 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), averaged across covered cities. Local microclimates vary. Not medical advice.
Places We Cover in Lithuania
We publish forecasts for these cities across Lithuania. Check the list to see what is near you, or view them on the Lithuania Pollen Map above.
Klaipėda County
Other
Panevėžys
Utena
Vilnius
Pollen information is for education and planning only. This is not medical advice. Consult a qualified healthcare provider about symptoms or treatment.