Pollen Counts in Vatican City
Check daily pollen forecasts, the pollen map, seasonal trends, and all the cities we cover in Vatican City. Forecasts update every day, so check back regularly during pollen season.
Updated: 8 Nov 2026.
Vatican City Pollen Map
- Alder
- Birch
- Grass
- Mugwort
- Olive
- Ragweed
Vatican City's Pollen Seasons
In Vatican City, tree pollen starts with alder in February and can continue through April. Birch pollen follows from March to May. Olive trees release pollen in May and June, adding to the overlap in late spring.
Grass pollen is the most common type across the year in Vatican City. Its season runs from May through July, with May also the busiest month overall for pollen. This means several pollen sources can overlap then.
Weed pollen arrives later in the year. Mugwort releases pollen in August and September, while ragweed releases pollen in August. These late-summer seasons can affect people with allergies, after the main spring pollen period has passed.
Pollen Calendar for Vatican City
Typical pollen calendar for Vatican City, averaged across 1 cities from previous years. Alder peaks in March, Birch peaks in April, Grass peaks in May, Mugwort peaks in August, Olive peaks in May, Ragweed peaks in August. Use it to see which months each pollen type usually rises and falls.
| Alder | Birch | Grass | Mugwort | Olive | Ragweed | |
|---|---|---|---|---|---|---|
| Jan | 0.4 | 0 | 0 | 0 | 0 | 0 |
| Feb | 8.4 | 0 | 0 | 0 | 0 | 0 |
| Mar | 20.5 | 17.2 | 13.4 | 0 | 0 | 0 |
| Apr | 16.4 | 51.8 | 100 | 0 | 8.4 | 0 |
| May | 3.3 | 13.5 | 626.6 | 0 | 368.6 | 0 |
| Jun | 0.3 | 10.3 | 594.9 | 0 | 212.4 | 0 |
| Jul | 0 | 0.1 | 158.5 | 4.2 | 2.5 | 0.2 |
| Aug | 0 | 0 | 41.5 | 181.4 | 0 | 21.3 |
| Sep | 0 | 0 | 4.4 | 51.8 | 0 | 4.9 |
| Oct | 0 | 0 | 0.7 | 6.1 | 0 | 0.1 |
| 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 Vatican City
We publish forecasts for these cities across Vatican City. Check the list to see what is near you, or view them on the Vatican City Pollen Map above.
Other
Pollen information is for education and planning only. This is not medical advice. Consult a qualified healthcare provider about symptoms or treatment.