What is the air quality in Riihimäki today?

The current Air Quality Index (AQI) in Riihimäki is 31 (Good). PM2.5 concentration is 7.37 µg/m³.

What is the temperature in Riihimäki right now?

The current temperature in Riihimäki is 6.4°C (feels like 2.4°C). Humidity is 95.5% and wind speed is 24.5 km/h.

Is it safe to go outside in Riihimäki?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Riihimäki, Finland

Overcast

6.4°C · 95.5% humidity

6.4°

Feels 2.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 2 stn

View full history →

Riihimäki's air quality is shaped by traffic emissions and residential heating. Pollution levels tend to peak during winter months when cold air traps emissions close to ground level.

95.5%

Humidity

24.5 km/h

Wind SE

1033.6 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

7.37 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Riihimäki?

Temperature & Precipitation

PM2.5 Trend

45h · 2 stations

PM2.57.37 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for Riihimäki?

10-21

9.7° 0.4°

1.44 mm

10-22

15.0° 4.5°

0.31 mm

10-23

7.6° 4.1°

2.12 mm

10-24

9.2° 5.2°

10-25

6.8° 1.8°

2.06 mm

10-26

6.5° 4.2°

0.13 mm

10-27

9.3° -2.0°

1.5 mm

Both models agree Avg diff: 3.1°C

What cities are near Riihimäki?

10 Hyvinge 17 Janakkala 10 Nurmijärvi 10 Mäntsälä 17 Hämeenlinna 10 Järvenpää 10 Klaukkala 10 Tuusula 10 Kerava 13 Vihti

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-21T04:00 UTC.