Fine particles
4.3µg/m³Good · 1 hourCAMS model • Open-Meteo
NassauAir 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.
Nassau - latest available concentrations (September 26, 2026, 21:00 local time): PM2.5: 4.3 µg/m³, PM10: 6.6 µg/m³, O₃: 77 µg/m³, NO₂: 2.6 µg/m³, SO₂: 2.4 µg/m³, CO: 137 µg/m³. These are hourly CAMS model values for a point representing the city.
Air quality questions →Nassau · Air pollutant concentrations
Data time: September 26, 2026 · 21:00 · local timeParticulate matter
6.6µg/m³Good · 1 hourOzone
77µg/m³Fair · 1 hourNitrogen dioxide
2.6µg/m³Good · 1 hourSulphur dioxide
2.4µg/m³Good · 1 hourCarbon monoxide
137µg/m³PM2.5 vs PM10 - what is the difference? → · Models and monitoring stations →
DAILY DATA · Nassau
Nassau - air pollution over recent days (2026-08-30 - 2026-09-25)
Concentrations of all available pollutants for this city.
PM2.5Lowest 1.96 2026-09-20Highest 7.09 2026-08-312026-08-30 - 2026-09-25
PM10Lowest 2.99 2026-09-20Highest 13.16 2026-08-312026-08-30 - 2026-09-25
O₃Lowest 40.71 2026-09-04Highest 78.25 2026-09-252026-08-30 - 2026-09-25
NO₂Lowest 0.71 2026-08-30Highest 1.78 2026-09-232026-08-30 - 2026-09-25
SO₂Lowest 0.76 2026-08-30Highest 2.02 2026-09-202026-08-30 - 2026-09-25
COLowest 93.13 2026-08-30Highest 146.83 2026-09-232026-08-30 - 2026-09-25
Scroll the chart or table sideways to see the full period.
| Pollutant | 2026-09-25 | 2026-09-24 | 2026-09-23 | 2026-09-22 | 2026-09-21 | 2026-09-20 | 2026-09-19 | 2026-09-06 | 2026-09-05 | 2026-09-04 | 2026-09-03 | 2026-09-02 | 2026-09-01 | 2026-08-31 | 2026-08-30 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 | 4.02 | 3.62 | 5.63 | 3.77 | 6.01 | 1.96 | 3.03 | 3.48 | 3.39 | 5.31 | 5.67 | 3.26 | 5.47 | 7.09 | 3.34 |
| PM10 | 5.98 | 5.23 | 8.15 | 5.51 | 8.9 | 2.99 | 4.88 | 5.5 | 5.55 | 9.06 | 8.84 | 4.88 | 9.14 | 13.16 | 5.65 |
| O₃ | 78.25 | 63.13 | 60 | 59.88 | 66.33 | 56.17 | 54.83 | 49.63 | 44.42 | 40.71 | 66.33 | 63.88 | 44.17 | 50.42 | 48.08 |
| NO₂ | 1.26 | 1.28 | 1.78 | 1.72 | 1.72 | 1.56 | 1.14 | 1.33 | 1.05 | 0.89 | 0.97 | 1.21 | 1.07 | 1.05 | 0.71 |
| SO₂ | 0.96 | 0.98 | 1.73 | 1.41 | 1.85 | 2.02 | 1.38 | 1.57 | 1.32 | 1.01 | 0.99 | 1.23 | 1.03 | 1.16 | 0.76 |
| CO | 130.21 | 131.38 | 146.83 | 138.75 | 125.71 | 107.75 | 109.17 | 99.42 | 102.58 | 119.21 | 124.83 | 119.63 | 116.5 | 108.29 | 93.13 |
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 →The Bahamas · air quality in other cities
WEATHER & SURROUNDINGS
Nassau · weather forecast
Daily maximum and minimum temperatures. Forecast point: 25.0582, -77.3431.
Scroll the forecast to see the following days.
Nassau · September 24, 2026: minimum temperature 25.6°C, maximum 29.2°C. Wind: 29.5 km/h. Humidity: 80%.
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 | 27.7 | 25.6 | 29.2 | 28.2 | 32.4 | 8.2 | 80 | 100 |
| 2026-09-25 | 28.6 | 27.1 | 29 | 28.1 | 6.2 | 6 | 77 | 50 |
| 2026-09-26 | 29.5 | 26.6 | 29.5 | 27.7 | 3.5 | 4.6 | 64 | 32 |
| 2026-09-27 | 27.7 | 26.7 | 27.9 | 27.2 | 2.4 | 3.1 | 68 | 95 |
| 2026-09-28 | 28.2 | 26.7 | 28.2 | 27.6 | 1 | 2.7 | 65 | 93 |
| 2026-09-29 | 26.3 | 25.4 | 28 | 27.6 | 4.6 | 3 | 81 | 99 |
| 2026-09-30 | 27.2 | 25 | 28.7 | 28.2 | 10.8 | 6.1 | 79 | 98 |
| 2026-10-01 | 25.6 | 25.6 | 28.5 | 28.2 | 17.6 | 8.5 | 89 | 100 |
| 2026-10-02 | 28.5 | 28.2 | 28.6 | 28.3 | 8.2 | 8.8 | 81 | 96 |
| 2026-10-03 | 28.6 | 28 | 28.6 | 28.5 | 6.5 | 10.5 | 82 | 100 |
| 2026-10-04 | 28.1 | 27.3 | 28.3 | 28.1 | 4.7 | 6.2 | 69 | 47 |
| 2026-10-05 | 28.4 | 27.2 | 28.4 | 27.9 | 7 | 8.2 | 71 | 86 |
| 2026-10-06 | 28.2 | 27.2 | 28.4 | 28.2 | 8.1 | 6.6 | 77 | 100 |
| 2026-10-07 | 28.2 | 28 | 28.6 | 28.1 | 0.1 | 4.4 | 76 | 84 |
| 2026-10-08 | 27.9 | 27.7 | 28.3 | 28 | 4.7 | 3.9 | 77 | 49 |
| 2026-10-09 | 28.1 | 27.7 | 28.2 | 28.1 | 1.3 | 7 | 76 | 85 |
| 2026-10-10 | 28.1 | 27.9 | 28.1 | 28.1 | 3.5 | 7.8 | 79 | 98 |
UV index by day · Nassau
City data.
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.
Nassau · 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 | 7.6 | 7.5 | 6.8 | 5.9 | 5.6 | 7.2 | 2.1 | 7.5 | 6 | 5.6 | 7.2 | 7.4 | 7.3 | 6.8 | — |
Sea temperature and waves · The Bahamas
Data for a selected coastal point.
Scroll the forecast to see the following days.
The Bahamas · September 26, 2026: Sea temperature (°C): 29.9 . Wave height (m): 0.5 .
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 29.9 | 29.9 | 30 | 30 | 29.8 | 29.7 | 29.2 | 29.2 | 29.3 | — | — | — | — | — | — | — |
| Wave height (m) | 0.5 | 0.4 | 0.3 | 0.2 | 0.2 | 0.7 | 0.8 | 0.7 | 0.5 | — | — | — | — | — | — | — |
Sea temperature throughout the year · The Bahamas
Monthly climate values for a selected coastal area (°C).
24.6°Jan
24.5°Feb
25.2°Mar
26°Apr
28.1°May
29.5°Jun
30.8°Jul
31°Aug
30.5°Sep
28.8°Oct
26.6°Nov
25°Dec
| °C | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea | 24.6 | 24.5 | 25.2 | 26 | 28.1 | 29.5 | 30.8 | 31 | 30.5 | 28.8 | 26.6 | 25 |
AIR QUALITY QUESTIONS
Nassau · air pollution - questions and answers
What do the latest air quality data show for Nassau?
Nassau - latest available concentrations (September 26, 2026, 21:00 local time): PM2.5: 4.3 µg/m³, PM10: 6.6 µg/m³, O₃: 77 µg/m³, NO₂: 2.6 µg/m³, SO₂: 2.4 µg/m³, CO: 137 µg/m³. These are hourly CAMS model values for a point representing the city.
When was PM2.5 highest in Nassau over the past week?
The highest available daily mean PM2.5 was 6 µg/m³ (September 21, 2026). This comparison covers 7 days with data in the seven days before September 26, 2026. The day of the latest reading is excluded because it may be incomplete.
Is the PM2.5 concentration for Nassau 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 Nassau?
For September 26, 2026, the forecast UV index is 7.8. The UV section also shows the following available days.
What wind speed is forecast for Nassau?
For September 24, 2026, forecast wind speed is 29.5 km/h. The weather table includes wind, temperature and other available parameters for subsequent days.
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.