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

pollen·today

Pollen Today in Oulu, Finland

Current pollen levels, hourly forecast, allergy risk and outlook for Oulu, Finland. Grass: Moderate · Mugwort: Moderate

Current Pollen Levels

grains/m³
Grass
52050LowModerateHighVery High18Moderate
Mugwort
52050LowModerateHighVery High7Moderate

Select allergens for a personalized forecast

Pollen Outlook

grains/m³ peak
Grass
Today
21High
20 Mon
36High
21 Tue
45High
22 Wed
50Very High
23 Thu
31High
Mugwort
Today
7Moderate
20 Mon
12Moderate
21 Tue
30High
22 Wed
31High
23 Thu
21High

About Oulu

CountryFinland, North Ostrobothnia
TimezoneEurope/Helsinki (UTC+3)
Coordinates65.01° N, 25.47° E
Population≈ 216K

TodayTomorrow

Local time (GMT+3)

Grass18 · Moderategrains/m³
5Low20Moderate0Today Jul 19Tomorrow Jul 20
Mugwort7 · Moderate
5Low0Today Jul 19Tomorrow Jul 200:0014°6:0012°12:0016°18:0019°0:0015°6:0011°12:0018°18:0019°
View detailed hourly pollen data

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

Today — Jul 19

HourGrassMugwort
00:00154
01:0094
02:00104
03:00134
04:00102
05:00181
06:00194
07:00194
08:00194
09:00183
10:00183
11:00193
12:00213
13:00183
14:00183
15:00173
16:00173
17:00173
18:00173
19:00173
20:00175
21:00186
22:00186
23:00187

Tomorrow — Jul 20

HourGrassMugwort
00:00207
01:00258
02:00299
03:00267
04:00227
05:00227
06:00219
07:002612
08:002611
09:002111
10:00197
11:00186
12:00184
13:00184
14:00194
15:00184
16:00193
17:00214
18:00214
19:00214
20:00236
21:00278
22:00328
23:003612

Pollen forecast in: Espoo · Helsinki · Vantaa

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

What is the pollen level in Oulu today?

On July 19, Oulu reaches a peak pollen risk of High around 12:00, driven mainly by Grass pollen. Live levels are tracked for birch, grass, alder, mugwort, olive, and ragweed.

Pollen snapshot

Now
Moderate
Today's peak
High · 12:00
Tomorrow's peak
High · 23:00
Main allergen
Grass
Temperature
16°
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.