Pollen and allergies — Roma
Rome lies in Lazio, between the Tiber basin and the Tyrrhenian coast. The city combines dense neighbourhoods, large parks and green areas on its outskirts, so the forecast is best read as a city-wide guide rather than a measurement for an individual street or district.
Periods and allergens to watch
- Late winter and spring: alder, birch and other broad-leaved trees can appear early, especially after a mild winter.
- Late spring and summer: grasses are often more relevant around meadows, parks and the urban edge.
- Mediterranean summer: olive and other oleaceous plants are part of the Lazio landscape; the actual calendar changes with rain and temperature.
- Late summer: mugwort and ragweed can matter near neglected land, roads and construction sites.
Rome’s forecast uses the European CAMS model through Open-Meteo. Values are modeled, not measured by a local station in this service, and have an approximately 11 km resolution. They can help with outdoor planning, but they cannot describe every urban microclimate or replace an allergist’s advice.
The distance between a large park, the historic centre and the agricultural edge can matter on a windy day. The forecast does not represent the Tiber, busy roads and green spaces as separate points. Use the trend to choose times and activities more deliberately, while real weather, symptoms and medical advice guide your personal decision.