Pollen Today in Bellegarde-sur-Valserine

Current pollen levels, hourly forecast, allergy risk and outlook for Bellegarde-sur-Valserine, France.

Birch: Moderate · Grass: Low

Current Pollen Levels

grains/m³
Birch
101001000LowModerateHighVery High50Moderate
Grass
52050LowModerateHighVery High1Low

Select allergens for a personalized forecast

Pollen Outlook

grains/m³ peak
Birch
Today
242High
17 Fri
312High
18 Sat
311High
19 Sun
171High
Grass
Today
2Low
17 Fri
3Low
18 Sat
3Low
19 Sun
2Low
Alder
Today
<1Low
17 Fri
<1Low
18 Sat
0None
19 Sun
0None

TodayTomorrow

Local time (GMT+2)

Birch50 · Moderategrains/m³
10Low100Moderate0Today Apr 16Tomorrow Apr 17
Grass1 · Low
5Low0Today Apr 16Tomorrow Apr 17
Alder0 · None
10Low0Today Apr 16Tomorrow Apr 170:009°6:006°12:0017°18:0019°0:0010°6:008°12:0017°18:0020°
View detailed hourly pollen data

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

Today — Apr 16

HourBirchGrassAlder
00:00361
01:00301
02:00271
03:00331
04:00371
05:00501
06:00501
07:00501
08:00411
09:00411
10:00621
11:00652
12:00832
13:00992
14:001141
15:001311
16:001541
17:001822
18:002102
19:002422
20:001872
21:00972
22:00721
23:00702

Tomorrow — Apr 17

HourBirchGrassAlder
00:00931
01:00902
02:001122
03:001262
04:001312
05:001252
06:001162
07:001022
08:00922
09:00792
10:001402
11:001323
12:001282
13:001292
14:001382
15:001482
16:001752
17:002092
18:003122
19:002653
20:001622
21:001892
22:002281
23:001202

About Bellegarde-sur-Valserine

CountryFrance, Rhône-Alpes
TimezoneEurope/Paris (UTC+2)
Coordinates46.11° N, 5.82° E
Population≈ 11.7K

Pollen forecast in: Versoix · Carouge · Saint-Claude

Planning outdoor activities? Check UV index in Bellegarde-sur-Valserine 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