Sagamihara air quality now

Japan · The summary is refreshed every 15 minutes.

Now

No current value: fewer than four sensors at different places are reporting now.

Open map

Open methodology and data in JSON: Methodology and data sources · JSON

In Sagamihara the air is good right now (approximate, US EPA scale). From 18:00 to 04:00 local time the city mean PM2.5 stayed roughly level: from 6.3 to 7.0 µg/m³. The highest hour was 19:00 with 10.3 µg/m³.

The weather data do not point to a clear reason for this level.

Weather now: partly cloudy, 8°C, wind 1 m/s, humidity 78%. No major change in the wind is expected in the coming hours. By 18:00 the temperature will be about 14°C.

Written automatically at 06:13 local time (21:13 UTC) from sensor measurements and the weather forecast. Values are approximate; hypotheses are marked.

1 m/s

Wind, NNW

0 mm

Precipitation today

Pollution accumulation index now

43/100Moderate · An estimate of weather conditions · not a PM2.5 forecast

Now4340
07.0015.0022.0006.00

Pollution accumulation forecast

Today — November 12

17°/8°

Index by time of day

56/100Moderate

  1. 56/100Night
  2. 43/100Morning
  3. 10/100Day
  4. 26/100Evening

Friday — November 13

20°/8°

Index by time of day

57/100Moderate

  1. 57/100Night
  2. 40/100Morning
  3. 10/100Day
  4. 24/100Evening

Saturday — November 14

19°/10°

Index by time of day

55/100Moderate

  1. 55/100Night
  2. 42/100Morning
  3. 9/100Day
  4. 23/100Evening

Sunday — November 15

17°/11°

Index by time of day

53/100Moderate

  1. 53/100Night
  2. 39/100Morning
  3. 9/100Day
  4. 20/100Evening

Monday — November 16

19°/12°

Index by time of day

45/100Moderate

  1. 45/100Night
  2. 33/100Morning
  3. 7/100Day
  4. 23/100Evening

Tuesday — November 17

13°/10°

Index by time of day

48/100Moderate

  1. 48/100Night
  2. 35/100Morning
  3. 7/100Day
  4. 19/100Evening

Forecast of conditions that trap pollution near the surface

Weather

8°

Partly cloudy. Feels like 6°C

  1. MorningClear11°C66%
  2. DayClear17°C67%
  3. EveningClear11°C88%

Wind

1m/sWind from the NNW

4m/sWind gusts

Wind force: 1

Light wind is expected over the next few hours.

10-day weather forecast for Sagamihara

Japan

  1. TodayNov 12Partly cloudy17°C8°C
  2. FriNov 13Partly cloudy20°C8°C
  3. SatNov 14Partly cloudy19°C10°C
  4. SunNov 15Rain17°C11°C
  5. MonNov 16Rain19°C12°C
  6. TueNov 17Rain13°C10°C
  7. WedNov 18Rain18°C10°C
  8. ThuNov 19Partly cloudy15°C6°C
  9. FriNov 20Partly cloudy14°C5°C
  10. SatNov 21Partly cloudy14°C6°C

Japan: sensors in total

921

  1. TokyoJapan

    49

  2. NagoyaJapan

    18

  3. KobeJapan

    16

Cities with the most sensors

All sensors on the map, by city as the map assigns them; the city’s values count only the sensors that pass the Data Hub’s quality check.

Air quality calendar: Sagamihara

Daily mean PM2.5 of the city sensors, µg/m³

Click a day to see its date and value.

LowModerateElevatedHighVery highExtremely high

Japan · City ranking · All pilot cities

Questions

What is the air quality in Sagamihara right now?

Fresh data for Sagamihara are insufficient (last update: 08:45 local time, 23:45 UTC). Open the map for the latest readings of individual sensors.

Where do these data come from?

From Atmy sensors and connected public networks (citizen, experimental and government monitors), aggregated by Atmy. Values are approximate; see the methodology.

How often is this page updated?

The summary is rebuilt every 15 minutes from the latest reading of each sensor, each no older than one hour.

Data

Where do these data come from?

The daily value is the Data Hub’s: the mean of the city’s sensors that passed the nightly quality check, each with at least 12 valid hours, and only with sensors at four places 500 m apart; days are UTC.

“Now” uses the same sensors and rule: the mean of their latest readings, each at most 60 minutes old, shown only with sensors at four places 500 m apart reporting.

Source: public Atmy monitoring data. Methodology and data sources · Data terms