Fine particles
6.3µg/m³Fair · 1 hourCAMS model • Open-Meteo
CamayenneAir quality, PM2.5 and PM10
Check PM2.5 and PM10 particle levels alongside ozone, nitrogen dioxide and other gases. Compare the latest available concentrations with recent days and explore changes in air pollution through the available historical records.
Camayenne - latest available concentrations (September 27, 2026, 01:00 local time): PM2.5: 6.3 µg/m³, PM10: 9.3 µg/m³, O₃: 42 µg/m³, NO₂: 2.3 µg/m³, SO₂: 1.3 µg/m³, CO: 125 µg/m³. These are hourly CAMS model values for a point representing the city.
Air quality questions →Camayenne · Air pollutant concentrations
Data time: September 27, 2026 · 01:00 · local timeParticulate matter
9.3µg/m³Good · 1 hourOzone
42µg/m³Good · 1 hourNitrogen dioxide
2.3µg/m³Good · 1 hourSulphur dioxide
1.3µg/m³Good · 1 hourCarbon monoxide
125µg/m³PM2.5 vs PM10 - what is the difference? → · Models and monitoring stations →
DAILY DATA · Camayenne
Camayenne - air pollution over recent days (2026-08-31 - 2026-09-26)
Concentrations of all available pollutants for this city.
PM2.5Lowest 2.78 2026-09-23Highest 8.36 2026-09-252026-08-31 - 2026-09-26
PM10Lowest 4.23 2026-09-23Highest 13.05 2026-09-252026-08-31 - 2026-09-26
O₃Lowest 43.13 2026-09-23Highest 61.54 2026-09-072026-08-31 - 2026-09-26
NO₂Lowest 0.92 2026-09-24Highest 2.43 2026-08-312026-08-31 - 2026-09-26
SO₂Lowest 0.52 2026-09-23Highest 2.07 2026-08-312026-08-31 - 2026-09-26
COLowest 112.25 2026-09-23Highest 167.21 2026-09-032026-08-31 - 2026-09-26
Scroll the chart or table sideways to see the full period.
| Pollutant | 2026-09-26 | 2026-09-25 | 2026-09-24 | 2026-09-23 | 2026-09-22 | 2026-09-21 | 2026-09-20 | 2026-09-07 | 2026-09-06 | 2026-09-05 | 2026-09-04 | 2026-09-03 | 2026-09-02 | 2026-09-01 | 2026-08-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 7.55 | 8.36 | 4.82 | 2.78 | 4.36 | 6.08 | 6.27 | 5.52 | 6.24 | 4.33 | 3.33 | 3.85 | 4.4 | 7.48 | 5.54 |
| PM10 | 11.43 | 13.05 | 7.57 | 4.23 | 7.89 | 8.54 | 9.94 | 9.34 | 10.61 | 6.85 | 6.18 | 5.51 | 6.88 | 12.94 | 7.16 |
| O₃ | 49.54 | 43.96 | 43.17 | 43.13 | 46.42 | 47.5 | 48.08 | 61.54 | 50.17 | 54.54 | 57.46 | 52.58 | 47.54 | 44.21 | 48.33 |
| NO₂ | 1.69 | 1.46 | 0.92 | 1.1 | 1.61 | 2.3 | 1.24 | 1.98 | 1.57 | 1.56 | 1.86 | 1.28 | 1.73 | 1.76 | 2.43 |
| SO₂ | 1.59 | 1.11 | 0.73 | 0.52 | 0.95 | 1.65 | 0.9 | 2.07 | 1.39 | 1.31 | 1.43 | 1 | 1.24 | 1.39 | 2.07 |
| CO | 120.17 | 117.29 | 114 | 112.25 | 126.92 | 128.33 | 128.58 | 155.67 | 139.08 | 146.46 | 153.04 | 167.21 | 149.17 | 137.83 | 152.21 |
A dot on the chart and a dash in the table indicate missing data. The latest day may be incomplete.
Air quality in nearby cities
All cities →Sierra Leone↗
Kindia
PM2.55.1
PM105.7
µg/m³
PM2.5 · FairNO₂ 3.1O₃ 31
September 27, 202601:00
Sierra Leone↗
Freetown
PM2.59
PM1012.7
µg/m³
PM2.5 · FairNO₂ 2.4O₃ 39
September 27, 202601:00
Sierra Leone↗
Bo
PM2.55.4
PM105.8
µg/m³
PM2.5 · FairNO₂ 4.9O₃ 23
September 27, 202601:00
Sierra Leone↗
Kenema
PM2.54.7
PM105.1
µg/m³
PM2.5 · GoodNO₂ 4.3O₃ 25
September 27, 202601:00
Sierra Leone · air quality in other cities
WEATHER & SURROUNDINGS
Sierra Leone · weather forecast
Daily maximum and minimum temperatures. Forecast point: 8.5, -11.5. Forecast for a country reference point; conditions in the city may differ.
Scroll the forecast to see the following days.
Sierra Leone · September 24, 2026: minimum temperature 20.3°C, maximum 29.1°C. Wind: 9.7 km/h. Humidity: 57%.
Full forecast: temperature, rainfall, wind and humidity
| Date | Day °C | Min °C | Max °C | Night °C | Rain mm | Wind m/s | Humidity % | Clouds % |
|---|---|---|---|---|---|---|---|---|
| 2026-09-24 | 28.4 | 20.3 | 29.1 | 20.3 | 3.5 | 2.7 | 57 | 99 |
| 2026-09-25 | 29.2 | 19.1 | 31.5 | 21.9 | 0.1 | 2 | 56 | 95 |
| 2026-09-26 | 29.3 | 21.2 | 29.5 | 21.4 | 6.1 | 1.5 | 60 | 97 |
| 2026-09-27 | 26.3 | 21.3 | 28.1 | 21.3 | 7.1 | 2.3 | 72 | 94 |
| 2026-09-28 | 25.2 | 21.1 | 26.2 | 21.8 | 7.8 | 2.1 | 89 | 98 |
| 2026-09-29 | 23.3 | 21.2 | 23.3 | 21.6 | 5.8 | 1.1 | 96 | 100 |
| 2026-09-30 | 30.9 | 20.3 | 30.9 | 22.5 | 3.1 | 1.5 | 52 | 68 |
| 2026-10-01 | 28.4 | 21.4 | 28.4 | 22.2 | 17.6 | 1.7 | 68 | 96 |
| 2026-10-02 | 22.8 | 21.6 | 26.4 | 21.7 | 2.6 | 1.9 | 96 | 100 |
| 2026-10-03 | 24.9 | 21.4 | 25.5 | 21.5 | 15.1 | 1.7 | 93 | 83 |
| 2026-10-04 | 26.4 | 21.3 | 26.4 | 21.9 | 13.5 | 1.4 | 82 | 99 |
| 2026-10-05 | 25 | 21.5 | 25 | 21.7 | 12 | 1.3 | 92 | 100 |
| 2026-10-06 | 25.5 | 21.1 | 25.5 | 21.1 | 10.9 | 0.9 | 86 | 99 |
| 2026-10-07 | 28.2 | 20.9 | 28.2 | 21.9 | 8.8 | 1.7 | 67 | 92 |
| 2026-10-08 | 24 | 20.9 | 27.2 | 21.9 | 5.3 | 1.5 | 92 | 100 |
| 2026-10-09 | 29.5 | 20.7 | 29.5 | 22 | 13 | 1.7 | 63 | 78 |
| 2026-10-10 | 27 | 21.8 | 27 | 22 | 11.9 | 1.4 | 87 | 96 |
| 2026-10-11 | 29.7 | 20.7 | 29.7 | 23.6 | 2.5 | 1.3 | 61 | 100 |
UV index by day · Sierra Leone
Data for a country reference point. Local conditions may differ.
SPF 30-50, hat and sunglasses are a must. Better to stay in the shade 11:00-15:00.
0-2 low3-5 moderate6-7 high8-10 very high11+ extreme
Scroll the forecast to see the following days.
Sierra Leone · September 26, 2026: UV index: 7.8 .
| Indicator | 2026-09-26 | 2026-09-27 | 2026-09-28 | 2026-09-29 | 2026-09-30 | 2026-10-01 | 2026-10-02 | 2026-10-03 | 2026-10-04 | 2026-10-05 | 2026-10-06 | 2026-10-07 | 2026-10-08 | 2026-10-09 | 2026-10-10 | 2026-10-11 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index | 7.8 | 7.7 | 6.7 | 4.3 | 8.3 | 8.1 | 3.8 | 8 | 7.7 | 5.8 | 2.8 | 7.6 | 4.7 | 7.5 | 6 | — |
AIR QUALITY QUESTIONS
Camayenne · air pollution - questions and answers
What do the latest air quality data show for Camayenne?
Camayenne - latest available concentrations (September 27, 2026, 01:00 local time): PM2.5: 6.3 µg/m³, PM10: 9.3 µg/m³, O₃: 42 µg/m³, NO₂: 2.3 µg/m³, SO₂: 1.3 µg/m³, CO: 125 µg/m³. These are hourly CAMS model values for a point representing the city.
When was PM2.5 highest in Camayenne over the past week?
The highest available daily mean PM2.5 was 8.4 µg/m³ (September 25, 2026). This comparison covers 7 days with data in the seven days before September 27, 2026. The day of the latest reading is excluded because it may be incomplete.
Is the PM2.5 concentration for Camayenne an AQI score?
No. PM2.5 and PM10 are concentrations in µg/m³. AQI is a separate index calculated using a defined scale. When comparing air quality, also check other pollutants, the date and the averaging period.
What UV index does the available forecast show for Camayenne?
For September 26, 2026, the forecast UV index is 7.8. The UV section also shows the following available days. The forecast is for a country reference point (Sierra Leone), not the city itself.
What wind speed is forecast for Camayenne?
For September 24, 2026, forecast wind speed is 9.7 km/h. The weather table includes wind, temperature and other available parameters for subsequent days. These data describe a country reference point (Sierra Leone); local wind may differ.
PM2.5 · PM10 · NO₂ · O₃
Understanding air quality and pollution data
What do PM2.5 and PM10 mean?
PM2.5 and PM10 are fractions of airborne particulate matter. PM2.5 covers fine particles up to 2.5 micrometres in diameter, while PM10 covers particles up to 10 micrometres. Concentrations in µg/m³ tell you how many micrograms of particles are present in a cubic metre of air. Compare values over the same time period.
Where does the air pollution data come from?
The latest concentrations come from the CAMS atmospheric model via Open-Meteo for each city’s coordinates. Values describe a model area, so conditions on individual streets may differ. Historical monitoring station data is shown separately where available.
How does PM2.5 concentration differ from AQI?
PM2.5 is the concentration of one particle fraction, expressed in µg/m³. AQI is an index calculated using a particular scale and thresholds. The pollutant cards show concentrations. Our city ranking compares PM2.5; PM10, ozone, nitrogen dioxide and other available gases add to the picture of air quality.
Which dates do the values and charts cover?
Each current value has a data date and time. Current concentration cards show the latest available hour, daily charts summarise individual days, and monthly records let you compare longer periods. These values represent different time intervals.
How can I check pollution in my city?
Search for your city and open its air quality page. Start with PM2.5 and PM10, then check the other available pollutants and the data timestamp. Charts and tables help you compare concentrations over time. Weather and historical climate information complement the pollution data.