Pollen forecast for Monza. Data as of (Europe/Rome). Values update hourly — see this page for the current reading and hourly forecast.

pollen·today

Pollen Today in Monza, Italy

Current pollen levels, hourly forecast, allergy risk and outlook for Monza, Italy. Grass: Low · Mugwort: Low · Ragweed: High

Current Pollen Levels

grains/m³
Grass
52050LowModerateHighVery High3Low
Mugwort
52050LowModerateHighVery High2Low
Ragweed
52050LowModerateHighVery High26High

Select allergens for a personalized forecast

Pollen Outlook

grains/m³ peak
Grass
Today
5Low
4 Fri
6Moderate
5 Sat
4Low
6 Sun
6Moderate
Mugwort
Today
5Low
4 Fri
4Low
5 Sat
6Moderate
6 Sun
7Moderate
Ragweed
Today
93Very High
4 Fri
102Very High
5 Sat
67Very High
6 Sun
98Very High

About Monza

CountryItaly, Lombardy
TimezoneEurope/Rome (UTC+2)
Coordinates45.58° N, 9.27° E
Population≈ 124K

TodayTomorrow

Local time (GMT+2)

Each panel is one allergen: the line is its forecast concentration in grains per cubic metre, hour by hour across today and tomorrow. The dashed lines mark where it crosses into low, moderate and high. Those thresholds differ per pollen type, so the same height means different things from panel to panel. An allergen is left out when your profile excludes it, or when no pollen is forecast for it over these two days.

Grass3 · Lowgrains/m³
5ModerateLow0Today Sep 3Tomorrow Sep 4
Mugwort2 · Low
5ModerateLow0Today Sep 3Tomorrow Sep 4
Ragweed26 · High
5Moderate20HighModerate50Very HighHigh0Today Sep 3Tomorrow Sep 40:0024°6:0021°12:0029°18:0032°0:0024°6:0020°12:0029°18:0033°
View detailed hourly pollen data

Detailed hour-by-hour pollen forecast for Monza — today and tomorrow. Pollen concentrations per allergen type for each hour.

Today — Sep 3

HourGrassMugwortRagweed
00:00433
01:00432
02:00431
03:00421
04:00321
05:00421
06:00421
07:00433
08:00438
09:004493
10:004382
11:005355
12:004251
13:003238
14:003228
15:003222
16:003226
17:003227
18:003222
19:004217
20:00439
21:004410
22:00558
23:00544

Tomorrow — Sep 4

HourGrassMugwortRagweed
00:00543
01:00432
02:00531
03:0053
04:0053
05:00531
06:00531
07:00532
08:00635
09:006378
10:0053102
11:005366
12:004375
13:003265
14:003251
15:003240
16:003240
17:003227
18:003226
19:004225
20:005317
21:005415
22:005418
23:00449

What to expect

Pollen in Monza today is led by ragweed, which tops out at 93 grains/m³ — a very high reading — in the morning; right now the count sits at 26 grains/m³. The heaviest stretch runs from about 08:00 to 22:00; outside those hours levels drop below moderate. The rest of today's pollen comes from grass at 5 grains/m³ (low) and mugwort at 5 grains/m³ (low).

Tomorrow looks much the same, with another very high peak in the morning. Over the coming 4 days the picture is Thursday very high, Friday very high, Saturday very high, and Sunday very high — Friday looks the strongest.

Pollen snapshot

Now
High
Today's peak
Very High · 09:00
Tomorrow's peak
Very High · 10:00
Main allergen
Ragweed
Temperature
32°

Pollen forecast in: Brescia · Reggio Emilia · Milan

Planning outdoor activities? Check UV index in Monza on UVI.today

About the Pollen Forecast

What is a pollen forecast?

A pollen forecast predicts the concentration of airborne pollen grains (measured in grains per cubic meter) for a specific location and time. Pollen is released by trees, grasses, and weeds during their pollination seasons. Higher concentrations trigger worse allergy symptoms in sensitive individuals. This forecast uses data from the Copernicus Atmosphere Monitoring Service (CAMS).

How do I check the pollen forecast today?

This page shows the live pollen levels for your location using data from CAMS via Open-Meteo. You get current pollen concentrations for birch, grass, alder, mugwort, olive, and ragweed — plus an hourly forecast chart and tomorrow's outlook. Select your allergens to see personalized risk levels.

When are pollen levels highest?

Pollen levels vary by type: tree pollen (birch, alder) typically peaks in spring mornings, grass pollen peaks in late spring and summer afternoons, and weed pollen (mugwort, ragweed) peaks in late summer and fall. Warm, dry, windy days have higher pollen counts. Rain temporarily reduces airborne pollen. Check the forecast chart above for today's exact pollen trend.

How can I reduce pollen exposure?

Many people reduce pollen exposure by keeping windows closed on high-pollen days, showering after time outdoors, and using air purifiers. Check the pollen forecast before outdoor activities, and consult a healthcare provider for personal advice.

What is an allergy profile?

Your allergy profile tells us which pollen types trigger your symptoms. Different people react to different pollens — some are allergic to birch and grass, others to ragweed or olive. By selecting your allergens, you get a personalized risk assessment that only considers the pollen types relevant to you, rather than a generic overall forecast.

Pollen risk levels

None
Low
Moderate
High
Very High

Risk levels are based on approximate pollen concentration thresholds per allergen type (grains/m³):

  • Tree pollen (birch, alder): Low ≤10, Moderate ≤100, High ≤1000, Very High >1000
  • Grass & weed pollen (grass, mugwort, ragweed): Low ≤5, Moderate ≤20, High ≤50, Very High >50
  • Olive pollen: Low ≤10, Moderate ≤50, High ≤200, Very High >200

Your risk is the highest level among your selected allergens. These approximate thresholds are commonly referenced in European aeroallergen research (EAN) and clinical guidelines.