Pollen Today in Donji grad

Current pollen levels, hourly forecast, allergy risk and outlook for Donji grad, Croatia.

Birch: Low · Grass: Low · Alder: Low

Current Pollen Levels

grains/m³
Birch
101001000LowModerateHighVery High5Low
Grass
52050LowModerateHighVery High2Low
Alder
101001000LowModerateHighVery High<1Low

Select allergens for a personalized forecast

Pollen Outlook

grains/m³ peak
Birch
Today
21Moderate
17 Fri
89Moderate
18 Sat
103High
19 Sun
23Moderate
Grass
Today
3Low
17 Fri
2Low
18 Sat
3Low
19 Sun
2Low
Alder
Today
<1Low
17 Fri
<1Low
18 Sat
0None
19 Sun
0None

TodayTomorrow

Local time (GMT+2)

Birch5 · Lowgrains/m³
10Low100Moderate0Today Apr 16Tomorrow Apr 17
Grass2 · Low
5Low0Today Apr 16Tomorrow Apr 17
Alder<1 · Low
10Low0Today Apr 16Tomorrow Apr 170:0013°6:0012°12:0017°18:0020°0:0016°6:0011°12:0020°18:0022°
View detailed hourly pollen data

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

Today — Apr 16

HourBirchGrassAlder
00:0042
01:0042
02:0041
03:0042
04:0052
05:0062
06:0062
07:0052
08:0081
09:0061
10:0092
11:0082
12:0072
13:00102
14:00102
15:00112
16:00132
17:00142
18:00152
19:00162
20:00153
21:00193
22:00212
23:00202

Tomorrow — Apr 17

HourBirchGrassAlder
00:00202
01:00222
02:00262
03:00242
04:00302
05:00702
06:00792
07:00802
08:00852
09:00892
10:00692
11:00832
12:00692
13:00662
14:00662
15:00762
16:00621
17:00671
18:00632
19:00442
20:00372
21:00232
22:00252
23:00292

About Donji grad

CountryCroatia, Zagreb
TimezoneEurope/Zagreb (UTC+2)
Coordinates45.81° N, 15.98° E
Population≈ 37K

Pollen forecast in: Novi Zagreb · Zagreb · Novo Mesto

Planning outdoor activities? Check UV index in Donji grad 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.

How are pollen risk levels calculated?

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.

Pollen & weather data: Open-Meteo.com (CAMS/Copernicus)

Pollen thresholds: European Aeroallergen Network (EAN)

Location data: GeoNames (CC BY 4.0)

pollen.today uses the IP2Location LITE database for IP geolocation.

Disclaimer

This website shows pollen concentration data for informational purposes only. It does not provide medical advice, diagnosis, or treatment recommendations.

Pollen concentrations are modeled forecasts based on meteorological data. Actual pollen levels may vary due to local vegetation, microclimates, and other factors. Data coverage is best in Europe.

If you experience severe allergy symptoms, consult an allergist or healthcare provider.

Pollen and weather data is sourced from third-party APIs (Open-Meteo/CAMS). We do not guarantee accuracy or availability. Data may be delayed or temporarily unavailable.

© 2026 Pollen.Today — a SimpleMeteo project