Air Quality in Nakhon Ratchasima Today — Live AQI, PM2.5 & PM10, Smog, Weather and Forecast

1 weather warning in effect for Thailand 🌧️ Heavy rain

Latest air quality data: Nakhon Ratchasima

Locations: Bangkok » Samut Prakan Province » Udon Thani » Chonburi » Nakhon Ratchasima Chiang Mai » Hat Yai » Pak Kret » Si Racha » Lampang » Khon Kaen » Surat Thani » Rangsit » Ubon Ratchathani » Nakhon Si Thammarat » Khlong Luang District » Nakhon Pathom » Rayong » Phitsanulok »

Pollution and air quality forecast for Nakhon Ratchasima. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Nakhon Ratchasima:

particulate matter (PM2.5) dust - 2 (Good)
particulate matter (PM10) suspended dust - 3 (Good)
ozone (O3) - 41 (Good)
nitrogen dioxide (NO2) - 6 (Good)
sulfur dioxide (SO2) - 3 (Good)
carbon monoxide (CO) - 163 (Good)

Real-time Air Quality Index (AQI) for Nakhon Ratchasima, Thursday, August 27, 2026: 1.

AQI 1 Good

What is the air quality in Nakhon Ratchasima today? Is the air polluted in Nakhon Ratchasima?. Is there smog?

Today (Thursday, August 27, 2026) air quality is good. The air quality has no effect on health. Everyone can continue their outdoor activities normally in Nakhon Ratchasima.

What is the current level of PM2.5 in Nakhon Ratchasima? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 2 (Good) For comparison, the highest level of PM2.5 in Nakhon Ratchasima in the last 7 days was: 7 (Wednesday, August 26, 2026) and the lowest: 4 (Thursday, August 27, 2026).

What is the level of PM10 today in Nakhon Ratchasima? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Nakhon Ratchasima is: 3 (Good) The highest PM10 values usually occur in month: 91 (February 2018). The lowest value of particulate matter PM10 pollution in Nakhon Ratchasima is usually recorded in: August (15).

How is the O3 level today in Nakhon Ratchasima? (ozone (O3))
41 (Good)

How high is the level of NO2? (nitrogen dioxide (NO2))
6 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
3 (Good)

How high is the CO level? (carbon monoxide (CO))
163 (Good)

Current data Thursday, August 27, 2026 at 8:00 AM

PM2,5 2 (Good)

PM10 3 (Good)

O3 41 (Good)

NO2 6 (Good)

SO2 3 (Good)

CO 163 (Good)

Data on air pollution from recent days in Nakhon Ratchasima

index	2026-08-27	2026-08-26	2026-08-25	2026-08-24	2026-08-23	2026-08-22	2026-08-21	2026-08-20
pm25	4 Good	7 Good	5 Good	6 Good	5 Good	5 Good	6 Good	5 Good
pm10	4 Good	8 Good	7 Good	9 Good	7 Good	6 Good	7 Good	6 Good
o3	57 Good	59 Good	46 Good	46 Good	50 Good	51 Good	58 Good	51 Good
no2	7 Good	6 Good	6 Good	6 Good	6 Good	7 Good	7 Good	9 Good
so2	4 Good	4 Good	4 Good	4 Good	3 Good	4 Good	4 Good	5 Good
co	158 Good	135 Good	128 Good	134 Good	135 Good	159 Good	183 Good	171 Good

data source »

Air pollution in Nakhon Ratchasima from October 2015 to May 2020

index	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	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03	2016-02	2016-01	2015-12	2015-11	2015-10
co:ppm	0.31 (Good)	0.49 (Good)	0.61 (Good)	0.63 (Good)	0.66 (Good)	0.53 (Good)	0.57 (Good)	0.33 (Good)	0.53 (Good)	0.38 (Good)	0.35 (Good)	1.4 (Good)	0.51 (Good)	0.61 (Good)	0.72 (Good)	0.72 (Good)	0.8 (Good)	0.74 (Good)	0.62 (Good)	0.44 (Good)	0.31 (Good)	0.3 (Good)	0.43 (Good)	0.18 (Good)	0.33 (Good)	0.47 (Good)	0.59 (Good)	0.74 (Good)	0.77 (Good)	3.5 (Good)	12 (Good)	14 (Good)	0.41 (Good)	0.27 (Good)	0.41 (Good)	0.36 (Good)	0.62 (Good)	0.56 (Good)	0.48 (Good)	1.1 (Good)	0.76 (Good)	0.76 (Good)	0.88 (Good)	0.76 (Good)	0.69 (Good)	0.48 (Good)	0.52 (Good)	0.49 (Good)	0.28 (Good)	0.81 (Good)	1.1 (Good)	1.2 (Good)	0.89 (Good)	0.79 (Good)	0.59 (Good)	0.65 (Good)
no2:ppm	0.02 (Good)	0.01 (Good)	0.02 (Good)	0.02 (Good)	0.03 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.02 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.04 (Good)	0.01 (Good)	0 (Good)	0 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.03 (Good)	0.02 (Good)	0.02 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)
o3:ppm	0.04 (Good)	0.05 (Good)	0.04 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.04 (Good)	0.05 (Good)	0.05 (Good)	0.04 (Good)	0.04 (Good)	0.03 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.02 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.02 (Good)	0.03 (Good)	0.03 (Good)	0.03 (Good)	0.01 (Good)	0.01 (Good)	0.02 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.03 (Good)	0.04 (Good)	0.02 (Good)	0.02 (Good)	0.02 (Good)	0.03 (Good)	0.02 (Good)	0.02 (Good)
pm10	47 (Moderate)	52 (Unhealthy for Sensitive Groups)	74 (Unhealthy for Sensitive Groups)	88 (Unhealthy)	83 (Unhealthy)	75 (Unhealthy for Sensitive Groups)	55 (Unhealthy for Sensitive Groups)	44 (Moderate)	41 (Moderate)	28 (Moderate)	33 (Moderate)	34 (Moderate)	47 (Moderate)	53 (Unhealthy for Sensitive Groups)	74 (Unhealthy for Sensitive Groups)	84 (Unhealthy)	65 (Unhealthy for Sensitive Groups)	60 (Unhealthy for Sensitive Groups)	58 (Unhealthy for Sensitive Groups)	47 (Moderate)	36 (Moderate)	37 (Moderate)	36 (Moderate)	38 (Moderate)	27 (Moderate)	54 (Unhealthy for Sensitive Groups)	87 (Unhealthy)	91 (Unhealthy)	59 (Unhealthy for Sensitive Groups)	50 (Moderate)	45 (Moderate)	38 (Moderate)	17 (Good)	15 (Good)	20 (Good)	20 (Moderate)	30 (Moderate)	45 (Moderate)	70 (Unhealthy for Sensitive Groups)	70 (Unhealthy for Sensitive Groups)	47 (Moderate)	59 (Unhealthy for Sensitive Groups)	43 (Moderate)	37 (Moderate)	28 (Moderate)	24 (Moderate)	31 (Moderate)	27 (Moderate)	35 (Moderate)	63 (Unhealthy for Sensitive Groups)	77 (Unhealthy for Sensitive Groups)	83 (Unhealthy)	62 (Unhealthy for Sensitive Groups)	59 (Unhealthy for Sensitive Groups)	32 (Moderate)	47 (Moderate)
so2:ppm	- (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	- (Good)	- (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0 (Good)	0.01 (Good)	- (Good)	0.01 (Good)	0.01 (Good)	0 (Good)	0.01 (Good)	0 (Good)	0 (Good)	0.01 (Good)	0 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0.01 (Good)	0 (Good)	0.01 (Good)	0 (Good)

data source »

Nakhon Ratchasima

Thursday, August 27, 2026 at 8:00 AM

PM2,5 2.4 (Good)

particulate matter (PM2.5) dust

PM10 2.7 (Good)

particulate matter (PM10) suspended dust

O3 41 (Good)

ozone (O3)

NO2 5.6 (Good)

nitrogen dioxide (NO2)

SO2 3.4 (Good)

sulfur dioxide (SO2)

CO 163 (Good)

carbon monoxide (CO)

Nakhon Ratchasima

index	2026-08-20	2026-08-21	2026-08-22	2026-08-23	2026-08-24	2026-08-25	2026-08-26	2026-08-27
pm25	5	6	4.9	5.4	6.2	5.4	7	4
pm10	5.7	7.3	5.7	6.6	8.8	7.3	8	4.3
o3	51	58	51	50	46	46	59	57
no2	9.1	7.4	7.1	5.9	6.3	5.7	6	7.2
so2	4.6	3.9	3.6	3.4	4.3	3.9	4.5	4
co	171	183	159	135	134	128	135	158

Nai Mueang, Mueang

index	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	2016-11	2016-10	2016-09	2016-08	2016-07	2016-06	2016-05	2016-04	2016-03	2016-02	2016-01	2015-12	2015-11	2015-10
o3:ppm	0.04	0.05	0.04	0.03	0.03	0.03	0.03	0.02	0.02	0.02	0.02	0.04	0.05	0.05	0.04	0.04	0.03	0.02	0.02	0.02	0.01	0.01	0.01	0.01	0.02	0.03	0.03	0.03	0.02	0.02	0.02	0.01	0.01	0.01	0.01	0.02	0.03	0.03	0.03	0.01	0.01	0.02	0.01	0.01	0.01	0.01	0.01	0.01	0.03	0.04	0.02	0.02	0.02	0.03	0.02	0.02
no2:ppm	0.02	0.01	0.02	0.02	0.03	0.02	0.02	0.02	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.02	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.02	0.02	0.02	0.02	0.04	0.01	0	0	0.01	0.01	0.01	0.01	0.01	0.03	0.02	0.02	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.01	0.02	0.02	0.02	0.01	0.01	0.01
pm10	47	52	74	88	83	75	55	44	41	28	33	34	47	53	74	84	65	60	58	47	36	37	36	38	27	54	87	91	59	50	45	38	17	15	20	20	30	45	70	70	47	59	43	37	28	24	31	27	35	63	77	83	62	59	32	47
so2:ppm	-	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	-	-	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.01	-	0.01	0.01	0	0.01	0	0	0.01	0	0.01	0.01	0.01	0.01	0.01	0	0.01	0
co:ppm	0.31	0.49	0.61	0.63	0.66	0.53	0.57	0.33	0.53	0.38	0.35	1.4	0.51	0.61	0.72	0.72	0.8	0.74	0.62	0.44	0.31	0.3	0.43	0.18	0.33	0.47	0.59	0.74	0.77	3.5	12	14	0.41	0.27	0.41	0.36	0.62	0.56	0.48	1.1	0.76	0.76	0.88	0.76	0.69	0.48	0.52	0.49	0.28	0.81	1.1	1.2	0.89	0.79	0.59	0.65

* Pollution data source: https://openaq.org (Thailand) The data is licensed under CC-By 4.0

🌦️ Weather · 16-day Forecast — Thailand

16-day weather forecast for Thailand: today around 30°C (rain), lows near 27°C. Daily temperature and conditions, updated every day. Strong wind (about 21 km/h) is actively clearing smog and dust away.

☀️ UV Index · 16-day Forecast — Thailand

The UV index in Thailand today is 8.1 (very high) — unprotected fair skin can burn in about 25 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Nakhon Ratchasima — compare nearby locations.

Bangkok 3 µg/m³
Samut Prakan Province 3 µg/m³
Udon Thani 7 µg/m³
Chonburi 1 µg/m³
Chiang Mai 7 µg/m³
Hat Yai 13 µg/m³
Pak Kret 11 µg/m³
Si Racha 1 µg/m³

Frequently asked questions

Is the air safe to breathe in Nakhon Ratchasima today?

The current average PM2.5 across Nakhon Ratchasima is about 2 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.

What is the current PM2.5 level in Nakhon Ratchasima?

Right now PM2.5 in Nakhon Ratchasima averages about 2 µg/m³ (“Good”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.

Which day last week had the worst air in Nakhon Ratchasima?

Over the past week, the highest daily PM2.5 in Nakhon Ratchasima was recorded on Wednesday, August 26 (about 7 µg/m³).

What is the UV index in Nakhon Ratchasima today?

The UV index in Nakhon Ratchasima today is 8.1 (very high) — unprotected fair skin can burn in about 25 minutes.

Does today's wind help disperse smog in Nakhon Ratchasima?

Strong wind (about 21 km/h) is actively clearing smog and dust away.

How is air quality measured?

Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.