Fine particles
13.2µg/m³Fair · 1 hourCAMS model • Open-Meteo
HsinchuAir 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.
Hsinchu - latest available concentrations (November 11, 2026, 10:00 local time): PM2.5: 13.2 µg/m³, PM10: 19 µg/m³, O₃: 81 µg/m³, NO₂: 17.3 µg/m³, SO₂: 15.6 µg/m³, CO: 275 µg/m³. These are hourly CAMS model values for a point representing the city.
Air quality questions →Hsinchu · Air pollutant concentrations
Data time: November 11, 2026 · 10:00 · local timeParticulate matter
19µg/m³Fair · 1 hourOzone
81µg/m³Fair · 1 hourNitrogen dioxide
17.3µg/m³Fair · 1 hourSulphur dioxide
15.6µg/m³Good · 1 hourCarbon monoxide
275µg/m³PM2.5 vs PM10 - what is the difference? → · Models and monitoring stations →
DAILY DATA · Hsinchu
Hsinchu - air pollution over recent days (2026-08-31 - 2026-11-10)
Concentrations of all available pollutants for this city.
PM2.5Lowest 10.29 2026-09-01Highest 28.04 2026-11-052026-08-31 - 2026-11-10
PM10Lowest 11.15 2026-09-01Highest 36.85 2026-11-042026-08-31 - 2026-11-10
O₃Lowest 25.08 2026-09-02Highest 124.54 2026-09-072026-08-31 - 2026-11-10
NO₂Lowest 11 2026-09-06Highest 63.34 2026-09-022026-08-31 - 2026-11-10
SO₂Lowest 7.25 2026-09-06Highest 39.9 2026-08-312026-08-31 - 2026-11-10
COLowest 218.63 2026-11-07Highest 787.71 2026-09-042026-08-31 - 2026-11-10
Scroll the chart or table sideways to see the full period.
| Pollutant | 2026-11-10 | 2026-11-09 | 2026-11-08 | 2026-11-07 | 2026-11-06 | 2026-11-05 | 2026-11-04 | 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 | 13.84 | 13.98 | 17.22 | 16.2 | 13.79 | 28.04 | 26.8 | 22.93 | 16.44 | 18.07 | 14.79 | 14.17 | 18.72 | 10.29 | 17.65 |
| PM10 | 18.51 | 19.25 | 22.95 | 22.68 | 18.6 | 33.73 | 36.85 | 31 | 23.28 | 24.26 | 16.51 | 16.48 | 21.26 | 11.15 | 18.26 |
| O₃ | 63.42 | 62.29 | 72.25 | 72.88 | 67.79 | 58.33 | 52.92 | 124.54 | 111.54 | 92 | 33.33 | 47.25 | 25.08 | 37.21 | 88.21 |
| NO₂ | 14.71 | 17.73 | 23.99 | 21.86 | 23.67 | 52.22 | 41.18 | 20.16 | 11 | 21.92 | 59.68 | 52.55 | 63.34 | 47.07 | 25.22 |
| SO₂ | 8.99 | 8.5 | 14.06 | 11.25 | 15.12 | 23.65 | 19.36 | 17.33 | 7.25 | 12.21 | 39.36 | 28.11 | 32.62 | 27.62 | 39.9 |
| CO | 235.67 | 226.71 | 286.13 | 218.63 | 339.42 | 674.54 | 650 | 274.92 | 221.54 | 388.63 | 787.71 | 636.38 | 541.63 | 477.25 | 322.25 |
A dot on the chart and a dash in the table indicate missing data. The latest day may be incomplete.
AIR QUALITY ARCHIVE · Hsinchu
Hsinchu - air pollution history (2016-12 - 2020-05)
Compare monthly particle and gas concentrations in the available archive.
PM2.5Lowest 7.82 2019-06Highest 27.7 2018-022016-12 - 2020-05
PM10Lowest 21.9 2019-08Highest 57.4 2017-032016-12 - 2020-05
O₃ (ppm)Lowest 0.0223 2019-07Highest 0.0456 2019-102016-12 - 2020-05
NO₂ (ppm)Lowest 0.00806 2019-07Highest 0.0187 2017-032016-12 - 2020-05
SO₂ (ppm)Lowest 0.0015 2017-06Highest 0.00311 2017-092016-12 - 2020-05
CO (ppm)Lowest 0.244 2019-07Highest 0.485 2017-042016-12 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 µg/m³ | 14.9 | 17.5 | 18.4 | 18.3 | 19.2 | 13.8 | 15.3 | 18.5 | 13.5 | 10.6 | 9.77 | 7.82 | 15.4 | 16.4 | 22.1 | 22.6 | 24.7 | — | — | — | — | — | — | — | — | — | — | 27.7 | 15.5 | 18.7 | 15.6 | 15.8 | 20.3 | — | — | 10.4 | 14.1 | 20.9 | 23.8 | 24 | 21.7 | 18.5 |
| PM10 µg/m³ | 29 | 32 | 34.3 | 32.7 | 32.6 | 27 | 33 | 36.2 | 25.7 | 21.9 | 23.9 | 24.7 | 37.7 | 40.2 | 44.4 | 40.4 | 44.6 | — | — | — | — | — | — | — | — | — | — | 51.8 | 32.4 | 40 | 30.8 | 34.7 | 36.9 | — | — | 24.5 | 37.7 | 47.4 | 57.4 | 49.6 | 45.7 | 50.3 |
| O₃ (ppm) | 0.0291 | 0.0442 | 0.0366 | 0.0332 | 0.0313 | 0.0288 | 0.0385 | 0.0456 | 0.0339 | 0.0268 | 0.0223 | 0.0244 | 0.0398 | 0.0345 | 0.0347 | 0.0282 | 0.0264 | — | — | — | — | — | — | — | — | — | — | 0.0315 | 0.0281 | 0.0316 | 0.0309 | 0.0377 | 0.0348 | — | — | 0.0258 | 0.0329 | 0.0349 | 0.0361 | 0.0337 | 0.0297 | 0.0252 |
| NO₂ (ppm) | 0.00983 | 0.0125 | 0.0136 | 0.0135 | 0.0144 | 0.014 | 0.0114 | 0.0107 | 0.01 | 0.00884 | 0.00806 | 0.0105 | 0.0117 | 0.0127 | 0.0158 | 0.0136 | 0.0163 | — | — | — | — | — | — | — | — | — | — | 0.0155 | 0.0152 | 0.0144 | 0.0136 | 0.0107 | 0.0145 | — | — | 0.0108 | 0.0138 | 0.0165 | 0.0187 | 0.0158 | 0.0144 | 0.017 |
| SO₂ (ppm) | 0.00217 | 0.00187 | 0.002 | 0.00159 | 0.00197 | 0.00206 | 0.00193 | 0.00223 | 0.002 | 0.00204 | 0.00206 | 0.00203 | 0.00205 | 0.00217 | 0.00203 | 0.00182 | 0.00224 | — | — | — | — | — | — | — | — | — | — | 0.00153 | 0.00203 | 0.0025 | 0.00213 | 0.00226 | 0.00311 | — | — | 0.0015 | 0.00206 | 0.00237 | 0.00255 | 0.00221 | 0.00239 | 0.00233 |
| CO (ppm) | 0.314 | 0.367 | 0.392 | 0.391 | 0.465 | 0.388 | 0.28 | 0.319 | 0.258 | 0.268 | 0.244 | 0.288 | 0.352 | 0.404 | 0.448 | 0.463 | 0.484 | — | — | — | — | — | — | — | — | — | — | 0.452 | 0.419 | 0.389 | 0.351 | 0.294 | 0.361 | — | — | 0.346 | 0.377 | 0.485 | 0.464 | 0.393 | 0.419 | 0.458 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
Historical data by station 1
AIR QUALITY ARCHIVE · Hsinchu
Hsinchu
Station code: Hsinchu
Monthly monitoring station data.
PM2.5Lowest 7.82 2019-06Highest 27.7 2018-022016-12 - 2020-05
PM10Lowest 21.9 2019-08Highest 57.4 2017-032016-12 - 2020-05
O₃ (ppm)Lowest 0.0223 2019-07Highest 0.0456 2019-102016-12 - 2020-05
NO₂ (ppm)Lowest 0.00806 2019-07Highest 0.0187 2017-032016-12 - 2020-05
SO₂ (ppm)Lowest 0.0015 2017-06Highest 0.00311 2017-092016-12 - 2020-05
CO (ppm)Lowest 0.244 2019-07Highest 0.485 2017-042016-12 - 2020-05
Scroll the chart or table sideways to see the full period.
| Pollutant | 2020-05 | 2020-04 | 2020-03 | 2020-02 | 2020-01 | 2019-12 | 2019-11 | 2019-10 | 2019-09 | 2019-08 | 2019-07 | 2019-06 | 2019-05 | 2019-04 | 2019-03 | 2019-02 | 2019-01 | 2018-12 | 2018-11 | 2018-10 | 2018-09 | 2018-08 | 2018-07 | 2018-06 | 2018-05 | 2018-04 | 2018-03 | 2018-02 | 2018-01 | 2017-12 | 2017-11 | 2017-10 | 2017-09 | 2017-08 | 2017-07 | 2017-06 | 2017-05 | 2017-04 | 2017-03 | 2017-02 | 2017-01 | 2016-12 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 µg/m³ | 14.9 | 17.5 | 18.4 | 18.3 | 19.2 | 13.8 | 15.3 | 18.5 | 13.5 | 10.6 | 9.77 | 7.82 | 15.4 | 16.4 | 22.1 | 22.6 | 24.7 | — | — | — | — | — | — | — | — | — | — | 27.7 | 15.5 | 18.7 | 15.6 | 15.8 | 20.3 | — | — | 10.4 | 14.1 | 20.9 | 23.8 | 24 | 21.7 | 18.5 |
| PM10 µg/m³ | 29 | 32 | 34.3 | 32.7 | 32.6 | 27 | 33 | 36.2 | 25.7 | 21.9 | 23.9 | 24.7 | 37.7 | 40.2 | 44.4 | 40.4 | 44.6 | — | — | — | — | — | — | — | — | — | — | 51.8 | 32.4 | 40 | 30.8 | 34.7 | 36.9 | — | — | 24.5 | 37.7 | 47.4 | 57.4 | 49.6 | 45.7 | 50.3 |
| O₃ (ppm) | 0.0291 | 0.0442 | 0.0366 | 0.0332 | 0.0313 | 0.0288 | 0.0385 | 0.0456 | 0.0339 | 0.0268 | 0.0223 | 0.0244 | 0.0398 | 0.0345 | 0.0347 | 0.0282 | 0.0264 | — | — | — | — | — | — | — | — | — | — | 0.0315 | 0.0281 | 0.0316 | 0.0309 | 0.0377 | 0.0348 | — | — | 0.0258 | 0.0329 | 0.0349 | 0.0361 | 0.0337 | 0.0297 | 0.0252 |
| NO₂ (ppm) | 0.00983 | 0.0125 | 0.0136 | 0.0135 | 0.0144 | 0.014 | 0.0114 | 0.0107 | 0.01 | 0.00884 | 0.00806 | 0.0105 | 0.0117 | 0.0127 | 0.0158 | 0.0136 | 0.0163 | — | — | — | — | — | — | — | — | — | — | 0.0155 | 0.0152 | 0.0144 | 0.0136 | 0.0107 | 0.0145 | — | — | 0.0108 | 0.0138 | 0.0165 | 0.0187 | 0.0158 | 0.0144 | 0.017 |
| SO₂ (ppm) | 0.00217 | 0.00187 | 0.002 | 0.00159 | 0.00197 | 0.00206 | 0.00193 | 0.00223 | 0.002 | 0.00204 | 0.00206 | 0.00203 | 0.00205 | 0.00217 | 0.00203 | 0.00182 | 0.00224 | — | — | — | — | — | — | — | — | — | — | 0.00153 | 0.00203 | 0.0025 | 0.00213 | 0.00226 | 0.00311 | — | — | 0.0015 | 0.00206 | 0.00237 | 0.00255 | 0.00221 | 0.00239 | 0.00233 |
| CO (ppm) | 0.314 | 0.367 | 0.392 | 0.391 | 0.465 | 0.388 | 0.28 | 0.319 | 0.258 | 0.268 | 0.244 | 0.288 | 0.352 | 0.404 | 0.448 | 0.463 | 0.484 | — | — | — | — | — | — | — | — | — | — | 0.452 | 0.419 | 0.389 | 0.351 | 0.294 | 0.361 | — | — | 0.346 | 0.377 | 0.485 | 0.464 | 0.393 | 0.419 | 0.458 |
A dot on the chart and a dash in the table indicate missing data. Historical values do not describe today’s air quality.
How should I interpret the data and averaging period? →
OpenAQ ↗Taiwan
Environment and quality of life ratings · Hsinchu
Archived ratings of the local environment: green spaces, cleanliness, noise and water quality. Opinion indicators are separate from pollutant concentration measurements.
| Indicator | Hsinchu | Hong Kong | Macau | Mexico | Philippines | South Korea |
|---|---|---|---|---|---|---|
| Green and Parks in the City | 63% | 52% | — | 56% | 45% | 61% |
| Pleasure of spending time in the city | 50% | 43% | — | 57% | 39% | 43% |
| Air Pollution | 53% | 67% | — | 53% | 64% | 69% |
| Garbage Disposal | 71% | 52% | — | 52% | 35% | 62% |
| Availability and quality of drinking water | 64% | 66% | — | 57% | 54% | 72% |
| Cleanliness and tidiness | 69% | 54% | — | 45% | 38% | 63% |
| Noise and Light pollution | 28% | 66% | — | 48% | 60% | 50% |
| Water Pollution | 43% | 53% | — | 55% | 74% | 38% |
Air quality in nearby cities
All cities →Taiwan↗
Taipei
PM2.516.5
PM1025.6
µg/m³
PM2.5 · ModerateNO₂ 12.2O₃ 89
November 11, 202610:00
Taiwan↗
Keelung
PM2.516.5
PM1025.6
µg/m³
PM2.5 · ModerateNO₂ 12.2O₃ 89
November 11, 202610:00
Taiwan↗
Taoyuan
PM2.510.6
PM1014.2
µg/m³
PM2.5 · FairNO₂ 19.3O₃ 69
November 11, 202610:00
Taiwan↗
Taichung City
PM2.516.4
PM1017.2
µg/m³
PM2.5 · ModerateNO₂ 26.6O₃ 42
November 11, 202610:00
Taiwan↗
Nantou
PM2.516.4
PM1017.2
µg/m³
PM2.5 · ModerateNO₂ 26.6O₃ 42
November 11, 202610:00
Taiwan↗
Hualian
PM2.59.6
PM1014.8
µg/m³
PM2.5 · FairNO₂ 5.3O₃ 92
November 11, 202610:00
Taiwan↗
Douliu
PM2.513.8
PM1015.6
µg/m³
PM2.5 · FairNO₂ 28.5O₃ 49
November 11, 202610:00
Taiwan↗
Tainan
PM2.520.1
PM1023.9
µg/m³
PM2.5 · ModerateNO₂ 39.4O₃ 39
November 11, 202610:00
Taiwan · air quality in other cities
WEATHER & SURROUNDINGS
Hsinchu · weather forecast
Daily maximum and minimum temperatures. Forecast point: 24.8036, 120.9686.
Scroll the forecast to see the following days.
Hsinchu · November 9, 2026: minimum temperature 16.9°C, maximum 25.3°C. Wind: 47.2 km/h. Humidity: 79%.
Full forecast: temperature, rainfall, wind and humidity
| Date | Day °C | Min °C | Max °C | Night °C | Rain mm | Wind m/s | Humidity % | Clouds % |
|---|---|---|---|---|---|---|---|---|
| 2026-11-09 | 23 | 16.9 | 25.3 | 16.9 | 0.6 | 13.1 | 79 | 48 |
| 2026-11-10 | 19.9 | 17 | 20.5 | 19.6 | 0.3 | 12.1 | 57 | 43 |
| 2026-11-11 | 24.4 | 19.2 | 24.8 | 21.9 | — | 7.7 | 52 | 44 |
| 2026-11-12 | 25.5 | 20.2 | 26.2 | 22.9 | 0.2 | 3.9 | 54 | 11 |
| 2026-11-13 | 26.6 | 21.7 | 27.6 | 23.8 | 0.9 | 4 | 53 | 25 |
| 2026-11-14 | 25.2 | 21 | 25.2 | 21.6 | 5.3 | 4.6 | 71 | 96 |
| 2026-11-15 | 25.3 | 21.1 | 25.9 | 21.9 | 4.3 | 8.1 | 66 | 35 |
| 2026-11-16 | 25.9 | 21 | 26.8 | 22 | 3.4 | 6.8 | 57 | 12 |
| 2026-11-17 | 25.4 | 21.1 | 25.4 | 22.6 | 0.8 | 6.1 | 60 | 82 |
| 2026-11-18 | 22.1 | 19.1 | 22.1 | 19.2 | 0.2 | 12.4 | 68 | 100 |
| 2026-11-19 | 17.8 | 17.4 | 19.1 | 17.6 | 9 | 9.2 | 83 | 100 |
| 2026-11-20 | 17.1 | 16.8 | 17.9 | 17.1 | 47.6 | 7.7 | 94 | 100 |
| 2026-11-21 | 20.8 | 15.8 | 22.4 | 17.4 | 1.4 | 6.1 | 50 | 2 |
| 2026-11-22 | 22.3 | 16.8 | 23.1 | 20.9 | 15 | 2.1 | 52 | 2 |
| 2026-11-23 | 18.9 | 18.7 | 20.7 | 19.2 | 51.4 | 4.9 | 92 | 100 |
| 2026-11-24 | 21.7 | 18.6 | 21.7 | 18.7 | 11.7 | 10.8 | 73 | 57 |
| 2026-11-25 | 19.4 | 18.3 | 20.9 | 19.7 | 3.9 | 6.8 | 87 | 100 |
UV index by day · Hsinchu
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.
Hsinchu · November 10, 2026: UV index: 6.2 .
| Indicator | 2026-11-10 | 2026-11-11 | 2026-11-12 | 2026-11-13 | 2026-11-14 | 2026-11-15 | 2026-11-16 | 2026-11-17 | 2026-11-18 | 2026-11-19 | 2026-11-20 | 2026-11-21 | 2026-11-22 | 2026-11-23 | 2026-11-24 | 2026-11-25 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index | 6.2 | 6.1 | 6.1 | 6.1 | 4.5 | 5.7 | 6.1 | 3.1 | 4.8 | 0.5 | 0.4 | 5.8 | 6 | 0.7 | 5.6 | — |
AIR QUALITY QUESTIONS
Hsinchu · air pollution - questions and answers
What do the latest air quality data show for Hsinchu?
Hsinchu - latest available concentrations (November 11, 2026, 10:00 local time): PM2.5: 13.2 µg/m³, PM10: 19 µg/m³, O₃: 81 µg/m³, NO₂: 17.3 µg/m³, SO₂: 15.6 µg/m³, CO: 275 µg/m³. These are hourly CAMS model values for a point representing the city.
When was PM2.5 highest in Hsinchu over the past week?
The highest available daily mean PM2.5 was 28 µg/m³ (November 5, 2026). This comparison covers 7 days with data in the seven days before November 11, 2026. The day of the latest reading is excluded because it may be incomplete.
What period does the pollution history for Hsinchu cover?
Available monthly means cover 2016-12 - 2020-05. The tables include PM2.5, PM10, O₃ (ppm), NO₂ (ppm), SO₂ (ppm), CO (ppm). Missing values are marked with a dash, not treated as zero. Monthly archives and current model data may come from different sources.
Is the PM2.5 concentration for Hsinchu 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 Hsinchu?
For November 10, 2026, the forecast UV index is 6.2. The UV section also shows the following available days.
What wind speed is forecast for Hsinchu?
For November 9, 2026, forecast wind speed is 47.2 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.