Pollen Today in Gières

Current pollen levels, hourly forecast, allergy risk and outlook for Gières, France.

Birch: Moderate · Grass: Low · Alder: Low

Current Pollen Levels

grains/m³
Birch
101001000LowModerateHighVery High15Moderate
Grass
52050LowModerateHighVery High2Low
Alder
101001000LowModerateHighVery High<1Low

Select allergens for a personalized forecast

Pollen Outlook

grains/m³ peak
Birch
Today
105High
17 Fri
114High
18 Sat
125High
19 Sun
122High
Grass
Today
2Low
17 Fri
3Low
18 Sat
4Low
19 Sun
4Low
Alder
Today
<1Low
17 Fri
<1Low
18 Sat
<1Low
19 Sun
0None

TodayTomorrow

Local time (GMT+2)

Birch15 · Moderategrains/m³
10Low100Moderate0Today Apr 16Tomorrow Apr 17
Grass2 · Low
5Low0Today Apr 16Tomorrow Apr 17
Alder<1 · Low
10Low0Today Apr 16Tomorrow Apr 170:0013°6:0011°12:0017°18:0022°0:0012°6:0011°12:0018°18:0023°
View detailed hourly pollen data

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

Today — Apr 16

HourBirchGrassAlder
00:00112
01:00132
02:00151
03:00131
04:00162
05:00182
06:00152
07:00152
08:00142
09:00212
10:00321
11:00581
12:00482
13:00672
14:00852
15:00992
16:001052
17:00902
18:00862
19:00862
20:00792
21:00892
22:00632
23:00382

Tomorrow — Apr 17

HourBirchGrassAlder
00:00302
01:00332
02:00321
03:00341
04:00512
05:00482
06:00452
07:00401
08:00421
09:00531
10:00411
11:00452
12:00582
13:00752
14:00892
15:001092
16:001142
17:001122
18:00992
19:00982
20:00752
21:00803
22:00633
23:00423

About Gières

CountryFrance, Rhône-Alpes
TimezoneEurope/Paris (UTC+2)
Coordinates45.18° N, 5.79° E
Population6,299

Pollen forecast in: Le Pont-de-Claix · Domène · Grenoble

Planning outdoor activities? Check UV index in Gières 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