Fine particles
4.1µg/m³Good · 1 hourCAMS model • Open-Meteo
Port MoresbyAir 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.
Port Moresby - latest available concentrations (September 28, 2026, 11:00 local time): PM2.5: 4.1 µg/m³, PM10: 6.5 µg/m³, O₃: 59 µg/m³, NO₂: 0.3 µg/m³, SO₂: 0.6 µg/m³, CO: 139 µg/m³. These are hourly CAMS model values for a point representing the city.
Air quality questions →Port Moresby · Air pollutant concentrations
Data time: September 28, 2026 · 11:00 · local timeParticulate matter
6.5µg/m³Good · 1 hourOzone
59µg/m³Good · 1 hourNitrogen dioxide
0.3µg/m³Good · 1 hourSulphur dioxide
0.6µg/m³Good · 1 hourCarbon monoxide
139µg/m³PM2.5 vs PM10 - what is the difference? → · Models and monitoring stations →
DAILY DATA · Port Moresby
Port Moresby - air pollution over recent days (2026-08-31 - 2026-09-27)
Concentrations of all available pollutants for this city.
PM2.5Lowest 6.74 2026-09-06Highest 10.53 2026-09-212026-08-31 - 2026-09-27
PM10Lowest 10.65 2026-09-06Highest 17.54 2026-09-212026-08-31 - 2026-09-27
O₃Lowest 46.46 2026-09-06Highest 61.25 2026-09-232026-08-31 - 2026-09-27
NO₂Lowest 0.3 2026-08-31Highest 0.9 2026-09-052026-08-31 - 2026-09-27
SO₂Lowest 0.28 2026-08-31Highest 0.6 2026-09-052026-08-31 - 2026-09-27
COLowest 76.79 2026-08-31Highest 123.29 2026-09-072026-08-31 - 2026-09-27
Scroll the chart or table sideways to see the full period.
| Pollutant | 2026-09-27 | 2026-09-26 | 2026-09-25 | 2026-09-24 | 2026-09-23 | 2026-09-22 | 2026-09-21 | 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 | 7.71 | 9.08 | 9.04 | 8.65 | 8.6 | 10.12 | 10.53 | 7.16 | 6.74 | 9.14 | 8.1 | 7.6 | 7.94 | 9.63 | 10.35 |
| PM10 | 11.83 | 13.34 | 13.62 | 13.96 | 13.94 | 16.61 | 17.54 | 12 | 10.65 | 14.23 | 12.95 | 11.68 | 12.45 | 15.98 | 17.36 |
| O₃ | 53.92 | 57.92 | 57.33 | 59.92 | 61.25 | 58.83 | 58.5 | 50.21 | 46.46 | 50.25 | 53.92 | 47.04 | 50.08 | 59.29 | 59.96 |
| NO₂ | 0.57 | 0.78 | 0.7 | 0.46 | 0.55 | 0.68 | 0.39 | 0.43 | 0.55 | 0.9 | 0.59 | 0.79 | 0.77 | 0.52 | 0.3 |
| SO₂ | 0.46 | 0.51 | 0.53 | 0.47 | 0.46 | 0.46 | 0.35 | 0.55 | 0.58 | 0.6 | 0.38 | 0.42 | 0.43 | 0.33 | 0.28 |
| CO | 106.79 | 105.79 | 97.75 | 98.46 | 99.71 | 93.79 | 85.5 | 123.29 | 114.75 | 117.96 | 90.46 | 91.71 | 90.46 | 83.46 | 76.79 |
A dot on the chart and a dash in the table indicate missing data. The latest day may be incomplete.
Environment and quality of life ratings · Port Moresby
Archived ratings of the local environment: green spaces, cleanliness, noise and water quality. Opinion indicators are separate from pollutant concentration measurements.
| Indicator | Port Moresby | Solomon Islands | Micronesia | Palau | Guam | Nauru |
|---|---|---|---|---|---|---|
| Green and Parks in the City | 25% | 27% | 25% | 100% | 29% | — |
| Pleasure of spending time in the city | 33% | 28% | 50% | 100% | 62% | — |
| Air Pollution | 66% | 61% | 25% | 0% | 33% | — |
| Garbage Disposal | 18% | 13% | 8.3% | 50% | 35% | — |
| Availability and quality of drinking water | 36% | 44% | 0% | 50% | 52% | — |
| Cleanliness and tidiness | 23% | 21% | 17% | 58% | 37% | — |
| Noise and Light pollution | 60% | 65% | 33% | 0% | 54% | — |
| Water Pollution | 77% | 85% | 100% | 8.3% | 46% | — |
Air quality in nearby cities
All cities →Papua New Guinea · air quality in other cities
WEATHER & SURROUNDINGS
Papua New Guinea · weather forecast
Daily maximum and minimum temperatures. Forecast point: -6, 147. Forecast for a country reference point; conditions in the city may differ.
Scroll the forecast to see the following days.
Papua New Guinea · September 26, 2026: minimum temperature 18.6°C, maximum 24.9°C. Wind: 13.9 km/h. Humidity: 68%.
Full forecast: temperature, rainfall, wind and humidity
| Date | Day °C | Min °C | Max °C | Night °C | Rain mm | Wind m/s | Humidity % | Clouds % |
|---|---|---|---|---|---|---|---|---|
| 2026-09-26 | 24.8 | 18.6 | 24.9 | 20 | 1.1 | 3.9 | 68 | 53 |
| 2026-09-27 | 24 | 19.1 | 24 | 19.7 | 0.7 | 3.5 | 73 | 32 |
| 2026-09-28 | 23.8 | 19.1 | 24.1 | 19.7 | 4.9 | 3.6 | 73 | 58 |
| 2026-09-29 | 23.6 | 18.4 | 23.7 | 19.3 | 7.2 | 3.1 | 77 | 100 |
| 2026-09-30 | 23.8 | 18.9 | 23.8 | 20.1 | 3 | 3.2 | 76 | 92 |
| 2026-10-01 | 23.6 | 19.2 | 23.6 | 19.6 | 10 | 2.6 | 79 | 35 |
| 2026-10-02 | 22.9 | 19 | 23.4 | 19.4 | 4.8 | 3 | 83 | 59 |
| 2026-10-03 | 24.4 | 19 | 24.4 | 19.7 | 4.1 | 3.1 | 74 | 43 |
| 2026-10-04 | 22.6 | 18.7 | 23.6 | 19.9 | 2.6 | 3.2 | 86 | 83 |
| 2026-10-05 | 21.9 | 18.5 | 23 | 19.7 | 2.9 | 3.3 | 90 | 87 |
| 2026-10-06 | 22.7 | 18.8 | 24 | 19.3 | 1.1 | 3.2 | 87 | 63 |
| 2026-10-07 | 24.1 | 19.1 | 24.1 | 20.4 | 2.9 | 3 | 70 | 75 |
| 2026-10-08 | 23.8 | 19.3 | 24.2 | 20.2 | 10.1 | 2.9 | 75 | 38 |
| 2026-10-09 | 24 | 19.1 | 24 | 19.9 | 10.5 | 3.1 | 74 | 92 |
| 2026-10-10 | 24.1 | 18.9 | 24.7 | 20 | 1 | 3.1 | 72 | 32 |
| 2026-10-11 | 24.4 | 18.8 | 25.9 | 20.1 | 0.1 | 3.2 | 66 | 67 |
| 2026-10-12 | 24.4 | 19.3 | 24.9 | 20.4 | 1.9 | 3.2 | 64 | 79 |
UV index by day · Papua New Guinea
Data for a country reference point. Local conditions may differ.
SPF 50, long sleeves and shade between 10:00-16:00.
0-2 low3-5 moderate6-7 high8-10 very high11+ extreme
Scroll the forecast to see the following days.
Papua New Guinea · September 27, 2026: UV index: 9.4 .
| Indicator | 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 | 2026-10-12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index | 9.4 | 8.6 | 7.7 | 8.7 | 8.3 | 7.5 | 8 | 6.5 | 4.6 | 7 | 7.6 | 9.4 | 9.6 | 9.4 | 9.7 | — |
Sea temperature and waves · Papua New Guinea
Data for a selected coastal point.
Scroll the forecast to see the following days.
Papua New Guinea · September 27, 2026: Sea temperature (°C): 27.5 . Wave height (m): 0.8 .
| Indicator | 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 | 2026-10-12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 27.5 | 27.7 | 27.8 | 27.8 | 28 | 27.8 | 27.7 | 27.5 | 28.1 | — | — | — | — | — | — | — |
| Wave height (m) | 0.8 | 0.8 | 0.6 | 0.7 | 0.9 | 1.1 | 1.2 | 1.2 | 1 | — | — | — | — | — | — | — |
Sea temperature throughout the year · Papua New Guinea
Monthly climate values for a selected coastal area (°C).
30.4°Jan
30.2°Feb
30.5°Mar
30.7°Apr
30.5°May
30.1°Jun
29.4°Jul
28.9°Aug
28.7°Sep
29.6°Oct
30.2°Nov
30.5°Dec
| °C | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea | 30.4 | 30.2 | 30.5 | 30.7 | 30.5 | 30.1 | 29.4 | 28.9 | 28.7 | 29.6 | 30.2 | 30.5 |
AIR QUALITY QUESTIONS
Port Moresby · air pollution - questions and answers
What do the latest air quality data show for Port Moresby?
Port Moresby - latest available concentrations (September 28, 2026, 11:00 local time): PM2.5: 4.1 µg/m³, PM10: 6.5 µg/m³, O₃: 59 µg/m³, NO₂: 0.3 µg/m³, SO₂: 0.6 µg/m³, CO: 139 µg/m³. These are hourly CAMS model values for a point representing the city.
When was PM2.5 highest in Port Moresby over the past week?
The highest available daily mean PM2.5 was 10.5 µg/m³ (September 21, 2026). This comparison covers 7 days with data in the seven days before September 28, 2026. The day of the latest reading is excluded because it may be incomplete.
Is the PM2.5 concentration for Port Moresby 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 Port Moresby?
For September 27, 2026, the forecast UV index is 9.4. The UV section also shows the following available days. The forecast is for a country reference point (Papua New Guinea), not the city itself.
What wind speed is forecast for Port Moresby?
For September 26, 2026, forecast wind speed is 13.9 km/h. The weather table includes wind, temperature and other available parameters for subsequent days. These data describe a country reference point (Papua New Guinea); 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.