Air quality
Air quality in San Jose, Bicol Region today
Updated
Good (US AQI 30) Air quality is satisfactory and poses little or no risk; a good time for outdoor activity. Model estimate for Mon, Oct 26, 9:00 am (01:00 UTC).
Live AQI, PM2.5, PM10 and ozone for San Jose, Bicol Region, Philippines, with a 48-hour forecast and the best time to be outside.
- US AQI now
- 30 Good
- PM2.5
- 3.3 µg/m³ 0.2× WHO 24-h guideline
- PM10
- 4 µg/m³
- Ozone
- 65 µg/m³
- Dominant pollutant
- PM2.5 sub-index 30
- Best hour today
- 9:00 am AQI 30
- European AQI
- 23
Air quality in San Jose, Bicol Region right now
Right now the modelled US Air Quality Index for San Jose, Bicol Region, Philippines is 30, which falls in the "Good" band (up to 50). Air quality is satisfactory and poses little or no risk; a good time for outdoor activity.
The index is driven mainly by PM2.5, whose own sub-index is 30. Fine and coarse particles come from traffic, heating, industry, dust and smoke; they build up on calm nights and clear when wind or rain arrives.
PM2.5 is 3.3 µg/m³, within the WHO 24-hour guideline of 15 µg/m³; PM10 is 4 µg/m³ against a guideline of 45; ozone is 65 µg/m³ (below the WHO 8-hour level of 100); nitrogen dioxide is 0.3 µg/m³ (below the 24-hour guideline of 25).
Also this hour: UV index 5.4, carbon monoxide 188 µg/m³.
NASA FIRMS shows 6 fire hotspots within 300 km in the last day (nearest about 15 km), but particle levels are not elevated enough to point to smoke right now.
San Jose, Bicol Region AQI forecast: next 48 hours
Over the next 24 hours the AQI is forecast to range from 30 around Mon 9:00 am to 39 around Mon 10:00 pm, staying "Good" throughout.
The following day is expected to be cleaner, averaging about 28 against 35 for the next 24 hours.
| Local time (Asia/Manila) | US AQI | Category | PM2.5 µg/m³ | PM10 µg/m³ | Ozone µg/m³ |
|---|---|---|---|---|---|
| Mon 9:00 am | 30 | Good | 3.3 | 4 | 65 |
| Mon 12:00 pm | 32 | Good | 5 | 6 | 68 |
| Mon 3:00 pm | 34 | Good | 6.1 | 8 | 60 |
| Mon 6:00 pm | 36 | Good | 6.4 | 8 | 45 |
| Mon 9:00 pm | 38 | Good | 7.8 | 9 | 27 |
| Tue 12:00 am | 39 | Good | 6.5 | 7 | 23 |
| Tue 3:00 am | 37 | Good | 4.9 | 6 | 21 |
| Tue 6:00 am | 33 | Good | 5 | 6 | 24 |
| Tue 9:00 am | 32 | Good | 4.6 | 6 | 38 |
| Tue 12:00 pm | 32 | Good | 5.2 | 8 | 37 |
| Tue 3:00 pm | 32 | Good | 3 | 4 | 35 |
| Tue 6:00 pm | 29 | Good | 2.5 | 3 | 28 |
| Tue 9:00 pm | 27 | Good | 4.4 | 5 | 18 |
| Wed 12:00 am | 25 | Good | 4.7 | 6 | 14 |
| Wed 3:00 am | 24 | Good | 4.6 | 6 | 9 |
| Wed 6:00 am | 24 | Good | 4.9 | 6 | 14 |
| Wed 9:00 am | 23 | Good | 3 | 4 | 33 |
Every third hour of the CAMS forecast via Open-Meteo. US AQI uses rolling averages (24 h for particles, 8 h for ozone), so it moves more slowly than the hourly concentrations.
Best time to be outside in San Jose, Bicol Region today
Between 6 am and 9 pm local time, the cleanest air today is forecast around 9:00 am (AQI 30, Good) and the worst around 9:00 pm (AQI 38). The difference across the day is small, so timing matters little.
San Jose, Bicol Region vs the rest of Philippines
Across 95 Philippines cities we track, the average US AQI right now is 79 (Moderate). San Jose, Bicol Region at 30 is 49 points cleaner than average.
It ranks 13 of 95 from cleanest to most polluted; the cleanest is Iloilo (21) and the most polluted Victoria, Calabarzon (121).
For context, the median across 3,556 cities worldwide is 58.
Air quality in cities near San Jose, Bicol Region
| City | Distance | US AQI | Category | PM2.5 µg/m³ |
|---|---|---|---|---|
| Victoria, Mimaropa | 247 km | 61 | Moderate | 8.6 |
| San Pablo | 253 km | 100 | Moderate | 18.4 |
| Victoria, Calabarzon | 259 km | 121 | Unhealthy for Sensitive Groups | 15 |
| Los Baños | 265 km | 121 | Unhealthy for Sensitive Groups | 15 |
| Lipa City | 266 km | 100 | Moderate | 18.4 |
| Calamba | 275 km | 121 | Unhealthy for Sensitive Groups | 15 |
| Cabuyao | 281 km | 121 | Unhealthy for Sensitive Groups | 15 |
| Santa Rosa | 284 km | 85 | Moderate | 26 |
Model vs measured
We found no measured PM2.5 sensor cell within 25 km of San Jose, Bicol Region, so the numbers on this page are model estimates. Models capture regional pollution well but can miss very local sources such as a busy road or a nearby fire.
Advice for sensitive groups
With the AQI at 30, there is no need for sensitive groups to change plans. People with asthma should still carry their reliever inhaler as usual.
What the US AQI numbers mean
| US AQI | Category | What it means |
|---|---|---|
| 0-50 | Good | Air quality is satisfactory and poses little or no risk; a good time for outdoor activity. |
| 51-100 | Moderate | Acceptable for most people. Unusually sensitive people should consider shortening long or heavy exertion outdoors. |
| 101-150 | Unhealthy for Sensitive Groups | People with heart or lung disease, older adults, children and teens should cut back on prolonged or heavy exertion outdoors. |
| 151-200 | Unhealthy | Everyone should reduce prolonged or heavy exertion outdoors; sensitive groups should avoid it and keep windows closed. |
| 201-300 | Very Unhealthy | Health alert: everyone should avoid prolonged or heavy exertion outdoors, and sensitive groups should stay indoors. |
| 301-500 | Hazardous | Emergency conditions: everyone should avoid all outdoor physical activity and stay indoors with filtered air if possible. The scale tops out at 500; heavier dust or smoke is shown as 500. |
Values on this page are modelled by CAMS (Copernicus) and served by Open-Meteo; they are estimates for the area around the city centre, not readings from an official monitor.
Nearby cities
More for San Jose
Air quality elsewhere
Data: Open-Meteo Air Quality API, Copernicus Atmosphere Monitoring Service (CAMS), NASA FIRMS.