Kenya · The summary is refreshed every 15 minutes.
No current value: fewer than four sensors at different places are reporting now.
Kisumu, November 10, 2026: daily mean PM2.5 22 µg/m³ (7 sensors), level “Moderate” — as in the Atmy Data Hub. Open methodology and data in JSON: Methodology and data sources · JSON
There are not enough fresh measurements for Kisumu right now. From 12:00 to 21:00 local time the city mean PM2.5 rose from 28.0 to 34.4 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 (95%) possibly makes optical sensors read somewhat higher.
Weather now: rain, 20°C, wind 1 m/s, humidity 95%. No major change in the wind is expected in the coming hours.
Written automatically at 00:12 local time (21:12 UTC) from sensor measurements and the weather forecast. Values are approximate; hypotheses are marked.
1 m/s
Wind, NNE
11.9 mm
Precipitation today
22 µg/m³ Moderate
Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 03:00–03:00 UTC+3): 22 µg/m³ from 7 sensors that passed the quality check — the same value as in the Atmy Data Hub.
48/100Moderate · An estimate of weather conditions · not a PM2.5 forecast
23°/19°
Index by time of day
50/100Moderate
Night
Morning
Day
Evening24°/19°
Index by time of day
52/100Moderate
NightMorningDayEvening25°/18°
Index by time of day
56/100Moderate
NightMorningDayEvening26°/19°
Index by time of day
60/100Moderate
NightMorningDayEvening26°/18°
Index by time of day
54/100Moderate
NightMorningDayEvening27°/19°
Index by time of day
56/100Moderate
NightMorningDayEveningForecast of conditions that trap pollution near the surface
20°
Rain. Feels like 23°C
19°C95%23°C73%
20°C99%1m/sWind from the NNE
5m/sWind gusts
Wind force: 1
Light wind is expected over the next few hours.
Kenya
23°C19°C24°C19°C25°C18°C26°C19°C26°C18°C27°C19°C27°C19°C28°C20°C
28°C20°C28°C20°C1
KikuyuKenya
1Cities 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.
Kenya · City ranking · All pilot cities
Daily mean PM2.5 on November 10, 2026 (00:00–24:00 UTC = 03:00–03:00 UTC+3): 22 µg/m³ from 7 sensors that passed the quality check — the same value as in the Atmy Data Hub. No. 1 of 2 cities in Kenya and No. 276 of 676 worldwide, from the most polluted.
Fresh data for Kisumu are insufficient (last update: 17:15 local time, 14:15 UTC). Open the map for the latest readings of individual sensors.
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
