Hangzhou air quality now

China · The summary is refreshed every 15 minutes.

November 12

The air is unhealthy for sensitive groups

Measured 05:00

Hangzhou

12°C

Cloudy

141AQI

1024

hPa

Atmospheric
pressure

96%

Humidity

Hangzhou, November 10, 2026: daily mean PM2.5 25 µg/m³ (12 sensors), level “Moderate” — as in the Atmy Data Hub. Now (06:00 local time): 51.7 µg/m³. Open methodology and data in JSON: Methodology and data sources · JSON

Right now in Hangzhou, PM2.5 averages 51.7 µg/m³ — “unhealthy for sensitive groups” on the US EPA scale (approximate, from hourly readings). Mean of 12 sensors from Government stations, readings from 05:00–05:00 local time (21:00–21:00 UTC), summary prepared at 06:00 local time. Median: 50.5 µg/m³; range across sensors: 33.0–79.0 µg/m³.

In Hangzhou the air is unhealthy for sensitive groups 🟠 AQI 141. About the same as three hours ago. ☁️ +12 °C · No precipitation · Wind 1 m/s

In Hangzhou the air is unhealthy for sensitive groups right now (approximate, US EPA scale). From 17:00 to 06:00 local time the city mean PM2.5 rose from 41.7 to 51.7 µg/m³.

Light wind (1 m/s) in the evening or at night, as the air cools, possibly traps particles near the ground (a temperature inversion). High humidity (96%) possibly makes optical sensors read somewhat higher.

Weather now: cloudy, 12°C, wind 1 m/s, humidity 96%. Precipitation is expected around 17:00; it may wash particles out. By 17:00 the temperature will be about 17°C.

Written automatically at 06:00 local time (22:00 UTC) from sensor measurements and the weather forecast. Values are approximate; hypotheses are marked.

1 m/s

Wind, S

1.6 mm

Precipitation today

Hangzhou: air quality for the completed day

Metric: PM2.5, µg/m³ · Color scale: EPA AQI · November 10, 2026 · 00:00–24:00 UTC = 08:00–08:00 UTC+8

25 µg/m³ Moderate

Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 08:00–08:00 UTC+8): 25 µg/m³ from 12 sensors that passed the quality check — the same value as in the Atmy Data Hub.

LowModerateElevatedHighVery highExtremely high

Hangzhou: PM2.5 by month

Metric: PM2.5, µg/m³ · Color scale: EPA AQI

Mean
Nov
Dec
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
This month
-
-
-
-
-
-
-
-
-
-
-
-
-
17

Monthly means of quality-checked sensors, as in the Data Hub trend; the current month is still incomplete, “-” means no data.

Pollution accumulation index now

40/100Moderate · An estimate of weather conditions · not a PM2.5 forecast

Now4055
06.0014.0021.0005.00

Pollution accumulation forecast

Today — November 12

20°/12°

Index by time of day

56/100Moderate

  1. 56/100Night
  2. 40/100Morning
  3. 8/100Day
  4. 24/100Evening

Friday — November 13

19°/13°

Index by time of day

55/100Moderate

  1. 55/100Night
  2. 42/100Morning
  3. 9/100Day
  4. 22/100Evening

Saturday — November 14

21°/16°

Index by time of day

55/100Moderate

  1. 55/100Night
  2. 41/100Morning
  3. 9/100Day
  4. 23/100Evening

Sunday — November 15

21°/16°

Index by time of day

49/100Moderate

  1. 49/100Night
  2. 37/100Morning
  3. 7/100Day
  4. 21/100Evening

Monday — November 16

20°/14°

Index by time of day

53/100Moderate

  1. 53/100Night
  2. 39/100Morning
  3. 8/100Day
  4. 20/100Evening

Tuesday — November 17

17°/14°

Index by time of day

42/100Moderate

  1. 42/100Night
  2. 32/100Morning
  3. 9/100Day
  4. 19/100Evening

Forecast of conditions that trap pollution near the surface

Weather

12°

Cloudy. Feels like 12°C

  1. MorningCloudy15°C80%
  2. DayCloudy19°C71%
  3. EveningCloudy15°C96%

Wind

1m/sWind from the S

1m/sWind gusts

Wind force: 1

Light wind is expected over the next few hours.

10-day weather forecast for Hangzhou

China

  1. TodayNov 12Rain20°C12°C
  2. FriNov 13Cloudy19°C13°C
  3. SatNov 14Rain21°C16°C
  4. SunNov 15Rain21°C16°C
  5. MonNov 16Cloudy20°C14°C
  6. TueNov 17Rain17°C14°C
  7. WedNov 18Rain15°C6°C
  8. ThuNov 19Cloudy10°C4°C
  9. FriNov 20Cloudy16°C5°C
  10. SatNov 21Cloudy18°C5°C

Where in Hangzhou is the air worse?

See all sensors

Highest current reading: 79.0 µg/m³ (和睦小学 (中国环境监测总站 (CNEMC) — 国家城市环境空气质量监测网)). Lowest: 33.0 µg/m³ (市府大楼 (中国环境监测总站 (CNEMC) — 国家城市环境空气质量监测网)). The list shows every sensor, highest first.

  1. 和睦小学 (中国环境监测总站 (CNEMC) — 国家城市环境空气质量监测网) →79 µg/m³
  2. 临平镇 (中国环境监测总站 (CNEMC) — 国家城市环境空气质量监测网) →74 µg/m³
  3. 消防大队 (中国环境监测总站 (CNEMC) — 国家城市环境空气质量监测网) →60 µg/m³
  4. 下沙 (中国环境监测总站 (CNEMC) — 国家城市环境空气质量监测网) →60 µg/m³
  5. 西溪 (中国环境监测总站 (CNEMC) — 国家城市环境空气质量监测网) →54 µg/m³
  6. 浙江农大 (中国环境监测总站 (CNEMC) — 国家城市环境空气质量监测网) →52 µg/m³
  7. 城厢镇 (中国环境监测总站 (CNEMC) — 国家城市环境空气质量监测网) →49 µg/m³
  8. 滨江 (中国环境监测总站 (CNEMC) — 国家城市环境空气质量监测网) →47 µg/m³
  9. 镇二中 (中国环境监测总站 (CNEMC) — 国家城市环境空气质量监测网) →41 µg/m³
  10. 卧龙桥 (中国环境监测总站 (CNEMC) — 国家城市环境空气质量监测网) →36 µg/m³
+2 more sensors
  1. 云栖 (中国环境监测总站 (CNEMC) — 国家城市环境空气质量监测网) →35 µg/m³
  2. 市府大楼 (中国环境监测总站 (CNEMC) — 国家城市环境空气质量监测网) →33 µg/m³

Source: atmy.ai monitoring network

Who provides the data

Sensors in the summary by network: Government stations — 12 sensors.

Atmy shows the networks’ readings after the Data Hub’s quality check: test devices and sensors that fail it are left out.

China: sensors in total

1,515

  1. ChongqingChina

    32

  2. BeijingChina

    24

  3. ShanghaiChina

    19

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: Hangzhou

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

Click a day to see its date and value.

LowModerateElevatedHighVery highExtremely high

Widget for your site

An Atmy card with the air quality in Hangzhou now: it is refreshed every 15 minutes and links to this page. Paste the code into your site.

Air quality in Hangzhou now — Atmy

China · City ranking · All pilot cities

Questions

What was the air quality in Hangzhou over the last completed day?

Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 08:00–08:00 UTC+8): 25 µg/m³ from 12 sensors that passed the quality check — the same value as in the Atmy Data Hub.

What is the air quality in Hangzhou right now?

Right now in Hangzhou, PM2.5 averages 51.7 µg/m³ — “unhealthy for sensitive groups” on the US EPA scale (approximate, from hourly readings). Mean of 12 sensors from Government stations, readings from 05:00–05:00 local time (21:00–21:00 UTC), summary prepared at 06:00 local time. Median: 50.5 µg/m³; range across sensors: 33.0–79.0 µg/m³.

Is it safe to be outdoors in Hangzhou now?

The current level is “unhealthy for sensitive groups” (US EPA scale, approximate). Children, older adults and people with heart or lung disease should reduce prolonged or heavy exertion outdoors. This is the standard guidance of the scale, not medical advice.

Where in Hangzhou is the air worse?

Highest current reading: 79.0 µg/m³ (和睦小学 (中国环境监测总站 (CNEMC) — 国家城市环境空气质量监测网)). Lowest: 33.0 µg/m³ (市府大楼 (中国环境监测总站 (CNEMC) — 国家城市环境空气质量监测网)). The list shows every sensor, highest first.

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