Pollen Counts in Romania
Check daily pollen forecasts, the pollen map, seasonal trends, and all the cities we cover in Romania. Forecasts update every day, so check back regularly during pollen season.
Updated: 3 Oct 2026.
Romania Pollen Map
- Alder
- Birch
- Grass
- Mugwort
- Olive
- Ragweed
Romania's Pollen Seasons
In Romania, pollen seasons shift as the year warms. Alder trees release pollen in March, and birch trees follow in April. March is the busiest month for pollen overall, even though several other plants release pollen later.
Olive trees also release pollen in May and June. Grass pollen season comes in June and July, when grasses release tiny grains into the air. These overlapping seasons mean different plants can affect people with allergies during the same months.
Mugwort, a weed, releases pollen from July through September. Ragweed pollen appears in August and September. Ragweed is the most common pollen type across the year in the records, although its season is shorter than mugwort’s.
These dates are average patterns from records across 75 cities in Romania, so local seasons may vary. The calendar stretches from tree pollen in March through June to weed pollen continuing into September across the country.
Pollen Calendar for Romania
Typical pollen calendar for Romania, averaged across 123 cities from previous years. Alder peaks in March, Birch peaks in April, Grass peaks in June, Mugwort peaks in August, Ragweed peaks in August. Use it to see which months each pollen type usually rises and falls.
| Alder | Birch | Grass | Mugwort | Olive | Ragweed | |
|---|---|---|---|---|---|---|
| Jan | 46.5 | 0 | 0 | 0 | 0 | 0 |
| Feb | 265.3 | 0 | 0.2 | 0 | 0 | 0 |
| Mar | 808.9 | 306.7 | 6.4 | 0 | 0 | 0 |
| Apr | 18.5 | 950.7 | 24.4 | 0 | 0.8 | 0 |
| May | 0.2 | 122.7 | 109.7 | 0 | 4.2 | 0 |
| Jun | 0 | 9.9 | 392 | 0 | 6.8 | 0 |
| Jul | 0 | 0.1 | 231 | 87.4 | 0.1 | 3.9 |
| Aug | 0 | 0 | 103.7 | 207.6 | 0 | 805.1 |
| Sep | 0 | 0 | 31.9 | 121.3 | 0 | 780.4 |
| Oct | 0 | 0 | 6.6 | 4.6 | 0 | 0.9 |
| Nov | 0 | 0 | 0.8 | 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 Romania
We publish forecasts for these cities across Romania. Check the list to see what is near you, or view them on the Romania Pollen Map above.
Alba
Arad County
Arges
Bacău County
Bihor
Bihor County
Bistrița-Năsăud County
Botoşani
Braşov
Brașov County
Brăila
Brăila County
Buzău County
Caraş-Severin
Caraș-Severin County
Cluj County
Constanța
Constanța County
Dolj
Dâmbovița County
Galați County
Giurgiu County
Gorj County
Harghita
Harghita County
Hunedoara
Hunedoara County
Ialomița County
Iași County
Ilfov
Maramureş
Mehedinți County
Mureș County
Neamț County
Other
Prahova
Satu Mare
Satu Mare County
Sibiu
Sibiu County
Suceava
Sălaj County
Teleorman County
Timiş
Timiș County
Tulcea County
Vaslui
Vrancea
Vâlcea County
Pollen information is for education and planning only. This is not medical advice. Consult a qualified healthcare provider about symptoms or treatment.