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

pollen·today

Pollen Today in Bacau, Romania

Current pollen levels, hourly forecast, allergy risk and outlook for Bacau, Romania. Grass: Low · Mugwort: Moderate · Ragweed: Very High

Current Pollen Levels

grains/m³
Grass
52050LowModerateHighVery High2Low
Mugwort
52050LowModerateHighVery High11Moderate
Ragweed
52050LowModerateHighVery High59Very High

Select allergens for a personalized forecast

Pollen Outlook

grains/m³ peak
Grass
Today
3Low
5 Sat
3Low
6 Sun
3Low
Mugwort
Today
44High
5 Sat
41High
6 Sun
34High
Ragweed
Today
764Very High
5 Sat
469Very High
6 Sun
522Very High

About Bacau

CountryRomania, Bacău County
TimezoneEurope/Bucharest (UTC+3)
Coordinates46.57° N, 26.91° E
Population≈ 136K

TodayTomorrow

Local time (GMT+3)

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.

Grass2 · Lowgrains/m³
5ModerateLow0Today Sep 4Tomorrow Sep 5
Mugwort11 · Moderate
5ModerateLow20HighModerate50High0Today Sep 4Tomorrow Sep 5
Ragweed59 · Very High
5Moderate20High50Very High0Today Sep 4Tomorrow Sep 50:0018°6:0013°12:0026°18:0027°0:0017°6:0014°12:0030°18:0032°
View detailed hourly pollen data

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

Today — Sep 4

HourGrassMugwortRagweed
00:0032921
01:0033118
02:0032311
03:002167
04:002146
05:002137
06:002129
07:0021114
08:0021159
09:00227764
10:00232551
11:00229304
12:00122232
13:00117234
14:00116190
15:00116103
16:0011753
17:0011824
18:0021815
19:002259
20:002443
21:003422
22:003373
23:003375

Tomorrow — Sep 5

HourGrassMugwortRagweed
00:003397
01:003417
02:003368
03:0033311
04:0033513
05:0023713
06:0023413
07:0023115
08:0033255
09:00227469
10:00222385
11:00222333
12:00118254
13:00116169
14:00114120
15:001955
16:001522
17:00139
18:00147
19:001105
20:001195
21:001244
22:001294
23:001222

What to expect

Pollen in Bacau today is led by ragweed, which tops out at 764 grains/m³ — a very high reading — in the morning; right now the count sits at 59 grains/m³. It doesn't really let up, either: levels hold moderate or higher through the whole day. Alongside ragweed, expect grass at 3 grains/m³ (low) and mugwort at 44 grains/m³ (high).

Tomorrow shouldn't change much — expect a very high peak again in the morning. Looking further ahead, the 3-day outlook runs Friday very high, Saturday very high, and Sunday very high — today is actually the strongest of the stretch.

Pollen snapshot

Now
Very High
Today's peak
Very High · 09:00
Tomorrow's peak
Very High · 09:00
Main allergen
Ragweed
Temperature
15°

Pollen forecast in: Chișinău · Galati · Brasov

Planning outdoor activities? Check UV index in Bacau 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.