Pollen Today in Old Town

Current pollen levels, hourly forecast, allergy risk and outlook for Old Town, Slovakia.

Birch: Moderate · Grass: Low · Alder: Low

Current Pollen Levels

grains/m³
Birch
101001000LowModerateHighVery High51Moderate
Grass
52050LowModerateHighVery High1Low
Alder
101001000LowModerateHighVery High<1Low

Select allergens for a personalized forecast

Pollen Outlook

grains/m³ peak
Birch
Today
133High
17 Fri
241High
18 Sat
229High
19 Sun
218High
Grass
Today
2Low
17 Fri
2Low
18 Sat
2Low
19 Sun
2Low
Alder
Today
<1Low
17 Fri
0None
18 Sat
<1Low
19 Sun
0None

TodayTomorrow

Local time (GMT+2)

Birch51 · Moderategrains/m³
10Low100Moderate0Today Apr 16Tomorrow Apr 17
Grass1 · Low
5Low0Today Apr 16Tomorrow Apr 17
Alder<1 · Low
10Low0Today Apr 16Tomorrow Apr 170:0011°6:0011°12:0017°18:0018°0:0014°6:0012°12:0019°18:0020°
View detailed hourly pollen data

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

Today — Apr 16

HourBirchGrassAlder
00:001331
01:001051
02:00671
03:00411
04:0029
05:0025
06:0022
07:0025
08:0029
09:0041
10:00511
11:00651
12:00621
13:00531
14:00481
15:00451
16:00381
17:00331
18:00301
19:00371
20:00322
21:00231
22:00221
23:00271

Tomorrow — Apr 17

HourBirchGrass
00:00321
01:00281
02:001101
03:001051
04:00951
05:0085
06:0078
07:0088
08:00103
09:001081
10:00841
11:00932
12:00901
13:00971
14:00871
15:00521
16:00341
17:00241
18:00471
19:00491
20:00471
21:00732
22:001022
23:002412

About Old Town

CountrySlovakia, Bratislava Region
TimezoneEurope/Bratislava (UTC+2)
Coordinates48.15° N, 17.09° E
Population≈ 46.1K

Pollen forecast in: Bernolákovo · Ivanka pri Dunaji · Šamorín

Planning outdoor activities? Check UV index in Old Town 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