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San PedroAir 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.

San Pedro - latest available concentrations (September 27, 2026, 09:00 local time): PM2.5: 17.6 µg/m³, PM10: 19.8 µg/m³, O₃: 86 µg/m³, NO₂: 17.3 µg/m³, SO₂: 21.9 µg/m³, CO: 522 µg/m³. These are hourly CAMS model values for a point representing the city.

Air quality questions →

1 weather warning in effect for Philippines 💧 Flooding

San Pedro · Air pollutant concentrations

Data time: September 27, 2026 · 09:00 · local time

PM2.5

Fine particles

17.6µg/m³Moderate · 1 hour

PM10

Particulate matter

19.8µg/m³Fair · 1 hour

O₃

Ozone

86µg/m³Fair · 1 hour

NO₂

Nitrogen dioxide

17.3µg/m³Fair · 1 hour

SO₂

Sulphur dioxide

21.9µg/m³Fair · 1 hour

Carbon monoxide

522µg/m³

PM2.5 vs PM10 - what is the difference? → · Models and monitoring stations →

DAILY DATA · San Pedro

San Pedro - air pollution over recent days (2026-08-31 - 2026-09-26)

Concentrations of all available pollutants for this city.

PM2.5Lowest 5.23 2026-09-05Highest 31.43 2026-08-312026-08-31 - 2026-09-26

Scroll the chart or table sideways to see the full period.

San Pedro · daily averages · µg/m³
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	27.08	20.93	23.63	16.64	17.94	13.54	21.16	7.47	7.61	5.23	6.47	9.24	8.53	24.97	31.43
PM10	27.28	21.4	23.81	16.86	18.53	14.9	21.91	8.73	8.88	6.26	7.92	11.92	11.17	27.99	34.79
O₃	92.33	87.92	116.13	101.88	76.04	65.17	77.46	66.29	65.75	49.25	62.21	66.42	68.04	77.46	100.96
NO₂	21.58	17.46	16.64	16.95	20.58	16.68	18.15	8.51	7.62	9.06	8.31	6.43	6	6.7	6.14
SO₂	21.14	16.75	21.92	18.04	16.68	11.52	15.69	5.5	4.94	4.96	5.3	4.53	4.57	5.07	4.85
CO	1,079.58	924.67	1,417.29	816.71	636.54	597.21	648.08	240.46	249.96	272.25	261	273.83	382.33	775.17	740.71

PM1018.2

µg/m³

PM2.5 · Moderate

NO₂ 7O₃ 113

September 27, 202609:00

Philippines · air quality in other cities

Manila Budta Davao City Cebu City General Santos Taguig Antipolo Zamboanga City Bacolod Cagayan De Oro City Dasmariñas Iloilo City San Jose del Monte Bacoor City Calamba Iligan City Butuan Angeles City Baguio City

WEATHER & SURROUNDINGS

Philippines · weather forecast

Daily maximum and minimum temperatures. Forecast point: 12.8797, 121.774. Forecast for a country reference point; conditions in the city may differ.

Scroll the forecast to see the following days.

Philippines · September 25, 2026: minimum temperature 28.2°C, maximum 29.1°C. Wind: 15.5 km/h. Humidity: 73%.

Full forecast: temperature, rainfall, wind and humidity

Date	Day °C	Min °C	Max °C	Night °C	Rain mm	Wind m/s	Humidity %	Clouds %
2026-09-25	28.3	28.2	29.1	28.6	1.8	4.3	73	15
2026-09-26	27.6	27.5	29.4	28.6	2.8	5.5	78	5
2026-09-27	27.8	27.7	29	28.5	2.3	4.4	78	93
2026-09-28	28.2	27.8	29.4	28.6	1.8	2.9	77	99
2026-09-29	27.6	27.6	29.1	28.8	1.5	2.9	78	13
2026-09-30	27.9	27.4	29.1	28.9	3.6	3	75	100
2026-10-01	27.9	27.8	28.9	28.6	3.8	4.1	78	4
2026-10-02	27.6	27.4	28.9	28.8	6.4	4	75	46
2026-10-03	27.3	26.9	29.1	28.4	0.1	3.9	70	88
2026-10-04	28.6	27.5	29.7	28.4	0.4	4.3	69	100
2026-10-05	29.6	28	29.6	28.8	0.6	8.3	73	100
2026-10-06	29	28.4	29.3	28.7	1.4	13.4	78	92
2026-10-07	28.4	28.2	28.6	28.4	1.7	14.4	81	100
2026-10-08	28.4	28.1	29	28.1	2	14.7	79	100
2026-10-09	27.7	27.1	28.7	27.1	9	5	73	97
2026-10-10	27.1	27.1	27.7	27.4	21.7	6.8	79	29
2026-10-11	27.8	27	28.4	27.8	11.6	5.1	76	100

UV index by day · Philippines

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.

Philippines · September 26, 2026: UV index: 8.9 .

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	8.9	8.9	8.1	8.9	8.7	9	8.6	9.1	6.3	5.9	8.8	7.5	8.3	6.4	8.8	—

Sea temperature and waves · Philippines

Data for a selected coastal point.

Scroll the forecast to see the following days.

Philippines · September 26, 2026: Sea temperature (°C): 30.2 . Wave height (m): 0.1 .

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)	30.2	30.4	30.5	30.9	31	30.9	30.7	30.8	30.8	—	—	—	—	—	—	—
Wave height (m)	0.1	0	0.1	0	0	0	0	0	0.1	—	—	—	—	—	—	—

Sea temperature throughout the year · Philippines

Monthly climate values for a selected coastal area (°C).

27.7°Jan

27.5°Feb

28.1°Mar

29.7°Apr

30.9°May

30.8°Jun

30.3°Jul

30.4°Aug

30.1°Sep

30.1°Oct

29.6°Nov

28.8°Dec

°C	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sea	27.7	27.5	28.1	29.7	30.9	30.8	30.3	30.4	30.1	30.1	29.6	28.8

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AIR QUALITY QUESTIONS

San Pedro · air pollution - questions and answers

What do the latest air quality data show for San Pedro?

When was PM2.5 highest in San Pedro over the past week?

The highest available daily mean PM2.5 was 27.1 µg/m³ (September 26, 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 San Pedro 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 San Pedro?

For September 26, 2026, the forecast UV index is 8.9. The UV section also shows the following available days. The forecast is for a country reference point (Philippines), not the city itself.

What wind speed is forecast for San Pedro?

For September 25, 2026, forecast wind speed is 15.5 km/h. The weather table includes wind, temperature and other available parameters for subsequent days. These data describe a country reference point (Philippines); 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.

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