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

1 weather warning in effect for Thailand 🌧️ Heavy rain

Latest air quality data: Si Racha

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

particulate matter (PM2.5) dust - 1 (Good)
particulate matter (PM10) suspended dust - 2 (Good)
ozone (O3) - 44 (Good)
nitrogen dioxide (NO2) - 4 (Good)
sulfur dioxide (SO2) - 2 (Good)
carbon monoxide (CO) - 115 (Good)

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

AQI 1 Good

What is the air quality in Si Racha today? Is the air polluted in Si Racha?. 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 Si Racha.

What is the current level of PM2.5 in Si Racha? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 1 (Good) For comparison, the highest level of PM2.5 in Si Racha in the last 7 days was: 6 (Tuesday, August 25, 2026) and the lowest: 1 (Thursday, August 27, 2026).

What is the level of PM10 today in Si Racha? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Si Racha is: 2 (Good)

How is the O3 level today in Si Racha? (ozone (O3))
44 (Good)

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

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

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

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

PM2,5 1 (Good)

PM10 2 (Good)

O3 44 (Good)

NO2 4 (Good)

SO2 2 (Good)

CO 115 (Good)

Data on air pollution from recent days in Si Racha

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	1 Good	3 Good	6 Good	3 Good	3 Good	3 Good	5 Good	2 Good
pm10	2 Good	4 Good	9 Good	4 Good	5 Good	4 Good	8 Good	2 Good
o3	45 Good	42 Good	38 Good	39 Good	40 Good	44 Good	48 Good	49 Good
no2	4 Good	4 Good	8 Good	5 Good	4 Good	4 Good	5 Good	4 Good
so2	2 Good	2 Good	3 Good	2 Good	1 Good	1 Good	2 Good	1 Good
co	112 Good	109 Good	122 Good	111 Good	105 Good	108 Good	118 Good	111 Good

data source »

Si Racha

Thursday, August 27, 2026 at 8:00 AM

PM2,5 1.4 (Good)

particulate matter (PM2.5) dust

PM10 1.6 (Good)

particulate matter (PM10) suspended dust

O3 44 (Good)

ozone (O3)

NO2 4.2 (Good)

nitrogen dioxide (NO2)

SO2 1.6 (Good)

sulfur dioxide (SO2)

CO 115 (Good)

carbon monoxide (CO)

Si Racha

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	1.7	5.4	2.5	3.5	2.8	6.2	2.9	1.3
pm10	2.3	8.1	3.5	4.9	4.1	9.1	4.3	1.6
o3	49	48	44	40	39	38	42	45
no2	4.5	5	4	3.8	4.5	7.9	4.3	4.2
so2	1.5	1.8	1.3	1.4	1.7	2.5	1.7	1.5
co	111	118	108	105	111	122	109	112

* Pollution data source: https://openaq.org () 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 Si Racha — compare nearby locations.

Bangkok 3 µg/m³
Samut Prakan Province 3 µg/m³
Udon Thani 7 µg/m³
Chonburi 1 µg/m³
Nakhon Ratchasima 2 µg/m³
Chiang Mai 7 µg/m³
Hat Yai 13 µg/m³
Pak Kret 11 µg/m³

Frequently asked questions

Is the air safe to breathe in Si Racha today?

The current average PM2.5 across Si Racha is about 1 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.

What is the current PM2.5 level in Si Racha?

Right now PM2.5 in Si Racha averages about 1 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 Si Racha?

Over the past week, the highest daily PM2.5 in Si Racha was recorded on Tuesday, August 25 (about 6 µg/m³).

What is the UV index in Si Racha today?

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

Does today's wind help disperse smog in Si Racha?

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.