Nepal · The summary is refreshed every 15 minutes.
November 12
The air is unhealthy for sensitive groups
Janakpur
18°C
Clear
1015
hPaAtmospheric
pressure
88%
Humidity
Janakpur, November 10, 2026: daily mean PM2.5 54 µg/m³ (4 sensors), level “Elevated” — as in the Atmy Data Hub. Now (03:45 local time): 49.2 µg/m³. Open methodology and data in JSON: Methodology and data sources · JSON
Right now in Janakpur, PM2.5 averages 49.2 µg/m³ — “unhealthy for sensitive groups” on the US EPA scale (approximate, from hourly readings). Mean of 4 sensors from Sensor.Community, readings from 03:38–03:43 local time (21:53–21:58 UTC), summary prepared at 03:45 local time. Median: 58.4 µg/m³; range across sensors: 15.2–64.8 µg/m³.
In Janakpur the air is unhealthy for sensitive groups 🟠 AQI 135. Lower than three hours ago. ☀️ +18 °C · No precipitation · Wind 1 m/s
In Janakpur the air is unhealthy for sensitive groups right now (approximate, US EPA scale). From 14:45 to 03:45 local time the city mean PM2.5 rose from 39.3 to 49.2 µg/m³. The highest hour was 22:45 with 122.0 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 (88%) possibly makes optical sensors read somewhat higher.
Weather now: clear, 18°C, wind 1 m/s, humidity 88%. No major change in the wind is expected in the coming hours. By 14:00 the temperature will be about 27°C.
Written automatically at 03:45 local time (22:00 UTC) from sensor measurements and the weather forecast. Values are approximate; hypotheses are marked.
1 m/s
Wind, ENE
0 mm
Precipitation today
54 µg/m³ Elevated
Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 05:45–05:45 UTC+5:45): 54 µg/m³ from 4 sensors that passed the quality check — the same value as in the Atmy Data Hub.
58/100Moderate · An estimate of weather conditions · not a PM2.5 forecast
27°/18°
Index by time of day
60/100Moderate
Night
Morning
Day
Evening26°/18°
Index by time of day
60/100Moderate
NightMorningDayEvening27°/18°
Index by time of day
59/100Moderate
NightMorningDayEvening27°/18°
Index by time of day
59/100Moderate
NightMorningDayEvening27°/18°
Index by time of day
62/100Moderate
NightMorningDayEvening25°/15°
Index by time of day
62/100Moderate
NightMorningDayEveningForecast of conditions that trap pollution near the surface
18°
Clear. Feels like 19°C
24°C66%26°C59%20°C82%1m/sWind from the ENE
2m/sWind gusts
Wind force: 1
Light wind is expected over the next few hours.
Nepal
27°C18°C26°C18°C27°C18°C27°C18°C27°C18°C25°C15°C25°C14°C
26°C14°C26°C14°C25°C15°C
Highest current reading: 64.8 µg/m³ (SC #100841). Lowest: 15.2 µg/m³ (SC #100847). The list shows every sensor, highest first.
Source: atmy.ai monitoring network
Sensors in the summary by network: Sensor.Community — 4 sensors.
Atmy shows the networks’ readings after the Data Hub’s quality check: test devices and sensors that fail it are left out.
20
KathmanduNepal
9GaurNepal
7JanakpurNepal
4Cities 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.
Daily mean PM2.5 of the city sensors, µg/m³
Click a day to see its date and value.
An Atmy card with the air quality in Janakpur now: it is refreshed every 15 minutes and links to this page. Paste the code into your site.
Nepal · City ranking · All pilot cities
Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 05:45–05:45 UTC+5:45): 54 µg/m³ from 4 sensors that passed the quality check — the same value as in the Atmy Data Hub. No. 2 of 3 cities in Nepal and No. 32 of 676 worldwide, from the most polluted.
Right now in Janakpur, PM2.5 averages 49.2 µg/m³ — “unhealthy for sensitive groups” on the US EPA scale (approximate, from hourly readings). Mean of 4 sensors from Sensor.Community, readings from 03:38–03:43 local time (21:53–21:58 UTC), summary prepared at 03:45 local time. Median: 58.4 µg/m³; range across sensors: 15.2–64.8 µg/m³.
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.
Highest current reading: 64.8 µg/m³ (SC #100841). Lowest: 15.2 µg/m³ (SC #100847). The list shows every sensor, highest first.
From Atmy sensors and connected public networks (citizen, experimental and government monitors), aggregated by Atmy. Values are approximate; see the methodology.
The summary is rebuilt every 15 minutes from the latest reading of each sensor, each no older than one hour.
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
