Updated MYThourly reading
Johor API today
The highest reading in Johor is 65 (Moderate) at the Pasir Gudang station, as of 06:00 MYT, 4 Nov.
65API
Highest in this statePasir GudangModeratePM2.5 ≈ 23 µg/m³ · 24-hour average≈ US AQI 77 (Moderate) · estimate, for comparison with international apps
Sensitive people (asthma, elderly, children) should cut back on long or strenuous outdoor activity.
Official Department of Environment readings, updated hourly. Each city is represented by a single monitoring station. For all 68 stations, see the official APIMS.
Official APIMS readingsCities in Johor
Tap a city for health advice
Stations in Johor
All stations- Pasir Gudang65Moderate
- Larkin63Moderate
- Kota Tinggi60Moderate
- Pengerang58Moderate
- Tangkak56Moderate
- Batu Pahat54Moderate
- Kluang53Moderate
- Segamat52Moderate
Haze alerts
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Common questions: Johor API
- What is the API in Johor right now?
- The highest reading in Johor is 65 (Moderate) at the Pasir Gudang station, as of 06:00 MYT, 4 Nov. Sensitive people (asthma, elderly, children) should cut back on long or strenuous outdoor activity.
- How many stations monitor Johor?
- 8 Department of Environment stations report in Johor: Batu Pahat, Kluang, Kota Tinggi, Larkin, Pasir Gudang, Pengerang, Segamat, Tangkak. None is at an unhealthy level right now.
- Are schools in Johor closed because of haze?
- Since October 2026, schools in an affected area close when the API goes above 180, or stays above 150 for three days in a row, on the instruction of the Ministry of Education or the State Education Department, not from this number alone. The current reading of 65 is well below that level.
- When is haze season in Johor?
- The Peninsula's west coast has two risky windows: February to April, when haze is more local, and July to October, the worst window, when the southwest monsoon carries smoke from regional forest and peatland fires. El Niño years are usually worse.
The API scale
0 to 500. Higher is worse.
- Good0–50
- Moderate51–100
- Unhealthy101–200
- Very Unhealthy201–300
- Hazardous301–500
- Emergency500+