Pollen Today in Thônes

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

Birch: Moderate · Grass: Low · Alder: Low

Current Pollen Levels

grains/m³
Birch
101001000LowModerateHighVery High19Moderate
Grass
52050LowModerateHighVery High1Low
Alder
101001000LowModerateHighVery High<1Low

Select allergens for a personalized forecast

Pollen Outlook

grains/m³ peak
Birch
Today
261High
17 Fri
370High
18 Sat
483High
19 Sun
250High
Grass
Today
3Low
17 Fri
3Low
18 Sat
3Low
19 Sun
3Low
Alder
Today
<1Low
17 Fri
1Low
18 Sat
<1Low
19 Sun
0None

TodayTomorrow

Local time (GMT+2)

Birch19 · Moderategrains/m³
10Low100Moderate0Today Apr 16Tomorrow Apr 17
Grass1 · Low
5Low0Today Apr 16Tomorrow Apr 17
Alder<1 · Low
10Low0Today Apr 16Tomorrow Apr 170:009°6:006°12:0015°18:0017°0:009°6:008°12:0016°18:0018°
View detailed hourly pollen data

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

Today — Apr 16

HourBirchGrassAlder
00:00432
01:00282
02:00242
03:00222
04:00221
05:00211
06:00191
07:0017
08:0016
09:0017
10:00351
11:00532
12:00932
13:001332
14:001572
15:001692
16:001762
17:002002
18:002322
19:002613
20:002302
21:001583
22:001373
23:001063

Tomorrow — Apr 17

HourBirchGrassAlder
00:00733
01:001023
02:00862
03:00632
04:00582
05:00582
06:00512
07:00502
08:00512
09:00682
10:001233
11:0017331
12:0018121
13:0018221
14:001862
15:001932
16:001992
17:0023421
18:0032631
19:003703
20:003013
21:002923
22:002643
23:00892

About Thônes

CountryFrance, Rhône-Alpes
TimezoneEurope/Paris (UTC+2)
Coordinates45.88° N, 6.33° E
Population6,032

Pollen forecast in: Megève · Vétraz-Monthoux · Albertville

Planning outdoor activities? Check UV index in Thônes 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