CAMS model • Open-Meteo
Saint BarthélemyAir quality, PM2.5 and PM10
Compare air quality across cities in this country. Explore PM2.5, PM10 and other pollutant concentrations, check data timestamps, and view recent trends and historical charts.
Saint Barthélemy - current concentrations are unavailable in this dataset. Explore the other available data and their dates below.
Air quality questions →All cities · Saint Barthélemy
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WEATHER & SURROUNDINGS
Saint Barthélemy · weather forecast
Daily maximum and minimum temperatures. Forecast point: 18.5, -63.4167.
Scroll the forecast to see the following days.
Saint Barthélemy · September 23, 2026: minimum temperature 26.4°C, maximum 30.1°C. Wind: 25.5 km/h. Humidity: 76%.
Full forecast: temperature, rainfall, wind and humidity
| Date | Day °C | Min °C | Max °C | Night °C | Rain mm | Wind m/s | Humidity % | Clouds % |
|---|---|---|---|---|---|---|---|---|
| 2026-09-23 | 30.1 | 26.4 | 30.1 | 27.6 | 2.3 | 7.1 | 76 | 9 |
| 2026-09-24 | 30.4 | 27.5 | 30.4 | 28.7 | 2.5 | 6.4 | 71 | 12 |
| 2026-09-25 | 29.8 | 28.1 | 30.2 | 29 | 2.2 | 5.4 | 79 | 8 |
| 2026-09-26 | 28.9 | 28 | 29.4 | 28 | 0.5 | 6.9 | 76 | 4 |
| 2026-09-27 | 28.8 | 27.8 | 29.2 | 27.8 | 6.4 | 7.6 | 77 | 21 |
| 2026-09-28 | 28.5 | 27.9 | 29.4 | 29.2 | 1.5 | 8.1 | 79 | 38 |
| 2026-09-29 | 29.3 | 28.4 | 29.3 | 29.2 | 1.4 | 9.4 | 73 | 37 |
| 2026-09-30 | 29 | 28.2 | 29 | 28.6 | 3.9 | 10.3 | 75 | 11 |
| 2026-10-01 | 28.7 | 28.4 | 28.8 | 28.5 | 1.2 | 8.6 | 70 | 5 |
| 2026-10-02 | 28.4 | 28.2 | 28.8 | 28.5 | 0.9 | 6.9 | 77 | 36 |
| 2026-10-03 | 28.9 | 28.4 | 28.9 | 28.7 | 1.1 | 7.9 | 76 | 22 |
| 2026-10-04 | 28.8 | 28.5 | 28.9 | 28.6 | 0.8 | 8 | 74 | 21 |
| 2026-10-05 | 28.7 | 28.5 | 28.9 | 28.6 | 2.3 | 7.9 | 76 | 9 |
| 2026-10-06 | 28.6 | 28.3 | 28.9 | 28.4 | 1.4 | 7.5 | 75 | 13 |
| 2026-10-07 | 28.8 | 28.2 | 28.8 | 28.6 | 0.8 | 6.5 | 70 | 84 |
| 2026-10-08 | 28.6 | 28.4 | 28.9 | 28.6 | 1.7 | 6.8 | 77 | 7 |
| 2026-10-09 | 28.7 | 28.5 | 28.9 | 28.5 | 1.3 | 7.5 | 77 | 6 |
UV index by day · Saint Barthélemy
Data for a country reference point. Local conditions may differ.
SPF 50, long sleeves and shade between 10:00-16:00.
Scroll the forecast to see the following days.
Saint Barthélemy · September 25, 2026: UV index: 8.5 .
| Indicator | 2026-09-25 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index | 8.5 | 8.4 | 8.5 | 8.5 | 8.5 | 8.3 | 8.4 | 8.4 | 8.3 | 8.3 | 8.3 | 8.3 | 8.3 | 8.3 | 8.2 | — |
Sea temperature and waves · Saint Barthélemy
Data for a selected coastal point.
Scroll the forecast to see the following days.
Saint Barthélemy · September 25, 2026: Sea temperature (°C): 29.6 . Wave height (m): 1 .
| Indicator | 2026-09-25 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 29.6 | 29.6 | 29.6 | 29.6 | 29.6 | 29.6 | 29.6 | 29.6 | 29.6 | — | — | — | — | — | — | — |
| Wave height (m) | 1 | 1.3 | 1.5 | 1.6 | 1.7 | 1.5 | 1.5 | 1.3 | 1.2 | — | — | — | — | — | — | — |
Sea temperature throughout the year · Saint Barthélemy
Monthly climate values for a selected coastal area (°C).
| °C | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea | 27.1 | 26.6 | 26.9 | 27.3 | 28.4 | 28.8 | 29.1 | 29.7 | 30.1 | 30.1 | 29 | 28.1 |
AIR QUALITY QUESTIONS
Saint Barthélemy · air pollution - questions and answers
Is the PM2.5 concentration for Saint Barthélemy 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 Saint Barthélemy?
For September 25, 2026, the forecast UV index is 8.5. The UV section also shows the following available days.
What wind speed is forecast for Saint Barthélemy?
For September 23, 2026, forecast wind speed is 25.5 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.