Pollen Counts in Monaco
Check daily pollen forecasts, the pollen map, seasonal trends, and all the cities we cover in Monaco. Forecasts update every day, so check back regularly during pollen season.
Updated: 8 Nov 2026.
Monaco Pollen Map
- Alder
- Birch
- Grass
- Mugwort
- Olive
- Ragweed
Monaco's Pollen Seasons
In Monaco, tree pollen arrives in spring. Alder and birch release pollen in March and April. Olive trees add pollen in May and June, extending the tree season during these months.
Grass pollen is the most common type across the year in Monaco. Its season runs from May through July, and June is the busiest month for pollen overall. This makes early summer an important time for grass pollen.
Weed pollen appears later in the year. Mugwort and ragweed release pollen in August and September in Monaco. These late-summer months can bring pollen that affects people with allergies, after the main grass season has ended.
Pollen Calendar for Monaco
Typical pollen calendar for Monaco, averaged across 1 cities from previous years. Alder peaks in March, Birch peaks in April, Grass peaks in June, 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 | 0.1 | 0 | 0 | 0 | 0 | 0 |
| Feb | 9.7 | 0 | 1 | 0 | 0 | 0 |
| Mar | 71.5 | 83.9 | 8.3 | 0 | 0 | 0 |
| Apr | 40.7 | 126 | 38.1 | 0 | 12.2 | 0 |
| May | 4.4 | 25.5 | 173.5 | 0 | 118 | 0 |
| Jun | 0.9 | 24.5 | 280.6 | 0 | 105.5 | 0 |
| Jul | 0 | 0.4 | 142.9 | 6 | 0.6 | 0.1 |
| Aug | 0 | 0 | 57.6 | 30.1 | 0 | 18.3 |
| Sep | 0 | 0 | 12.4 | 11.7 | 0 | 9.7 |
| Oct | 0 | 0 | 4.2 | 1.9 | 0 | 0.1 |
| Nov | 0 | 0 | 0.6 | 0.1 | 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 Monaco
We publish forecasts for these cities across Monaco. Check the list to see what is near you, or view them on the Monaco 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.