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

Latest air quality data: Haarlem
Pollution and air quality forecast for Haarlem. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Haarlem:
  1. particulate matter (PM2.5) dust - 11 (Good)
  2. particulate matter (PM10) suspended dust - 15 (Good)
  3. ozone (O3) - 56 (Good)
  4. nitrogen dioxide (NO2) - 15 (Good)
  5. sulfur dioxide (SO2) - 1 (Good)
  6. carbon monoxide (CO) - 190 (Good)
Real-time Air Quality Index (AQI) for Haarlem, Thursday, August 27, 2026: 1.

air quality index: 0
AQI 1 Good

What is the air quality in Haarlem today? Is the air polluted in Haarlem?. 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 Haarlem.


What is the current level of PM2.5 in Haarlem? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 11 (Good) For comparison, the highest level of PM2.5 in Haarlem in the last 7 days was: 12 (Thursday, August 27, 2026) and the lowest: 4 (Saturday, August 22, 2026).

What is the level of PM10 today in Haarlem? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Haarlem is: 15 (Good) The highest PM10 values usually occur in month: 31 (January 2017). The lowest value of particulate matter PM10 pollution in Haarlem is usually recorded in: July (13).

How is the O3 level today in Haarlem? (ozone (O3))
56 (Good)

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

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

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



Current data Thursday, August 27, 2026 at 3:00 AM

PM2,5 11 (Good)

PM10 15 (Good)

O3 56 (Good)

NO2 15 (Good)

SO2 1 (Good)

CO 190 (Good)

Data on air pollution from recent days in Haarlem

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 12
Good
9
Good
8
Good
7
Good
5
Good
4
Good
4
Good
5
Good
pm10 15
Good
13
Good
12
Good
12
Good
10
Good
10
Good
6
Good
8
Good
o3 72
Moderate
62
Good
70
Moderate
57
Good
68
Good
59
Good
54
Good
52
Good
no2 18
Good
20
Good
13
Good
20
Good
8
Good
11
Good
13
Good
15
Good
so2 2
Good
2
Good
1
Good
2
Good
1
Good
2
Good
2
Good
1
Good
co 215
Good
201
Good
183
Good
219
Good
192
Good
205
Good
194
Good
168
Good
data source »

Air pollution in Haarlem 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
no2 15 (Good) 19 (Good) 17 (Good) 16 (Good) 22 (Good) 27 (Good) 30 (Good) 22 (Good) 19 (Good) 19 (Good) 15 (Good) 20 (Good) 18 (Good) 22 (Good) 21 (Good) 32 (Good) 25 (Good) 24 (Good) 30 (Good) 28 (Good) 23 (Good) 21 (Good) 21 (Good) 20 (Good) 27 (Good) 30 (Good) 29 (Good) 30 (Good) 26 (Good) 27 (Good) 30 (Good) 20 (Good) 29 (Good) 27 (Good) 22 (Good) 21 (Good) 21 (Good) 23 (Good) 30 (Good) 33 (Good) 37 (Good) 37 (Good) 35 (Good) 25 (Good) 31 (Good) 26 (Good) 23 (Good) 24 (Good) 25 (Good) 24 (Good) 27 (Good) 30 (Good) 33 (Good) 26 (Good) 26 (Good) 31 (Good)
o3 64 (Good) 55 (Good) 49 (Good) 47 (Good) 32 (Good) 31 (Good) 25 (Good) 34 (Good) 36 (Good) 44 (Good) 51 (Good) 55 (Good) 52 (Good) 57 (Good) 39 (Good) 34 (Good) 35 (Good) 35 (Good) 16 (Good) 33 (Good) 42 (Good) 44 (Good) 64 (Good) 53 (Good) 73 (Moderate) 44 (Good) 40 (Good) 37 (Good) 41 (Good) 35 (Good) 35 (Good) 37 (Good) 31 (Good) 34 (Good) 39 (Good) 42 (Good) 41 (Good) 51 (Good) 33 (Good) 33 (Good) 20 (Good) 19 (Good) 24 (Good) 20 (Good) 31 (Good) 36 (Good) 39 (Good) 42 (Good) 54 (Good) 49 (Good) 45 (Good) 35 (Good) 24 (Good) 35 (Good) 31 (Good) 20 (Good)
pm10 16 (Good) 21 (Moderate) 18 (Good) 20 (Moderate) 19 (Good) 20 (Good) 16 (Good) 15 (Good) 15 (Good) 16 (Good) 13 (Good) 14 (Good) 14 (Good) 20 (Good) 23 (Moderate) 24 (Moderate) 21 (Moderate) 18 (Good) 21 (Moderate) 19 (Good) 17 (Good) 14 (Good) 17 (Good) 25 (Moderate) 26 (Moderate) 26 (Moderate) 23 (Moderate) 23 (Moderate) 19 (Good) 18 (Good) 19 (Good) 19 (Good) 17 (Good) 16 (Good) 15 (Good) 17 (Good) 16 (Good) 18 (Good) 21 (Moderate) 30 (Moderate) 31 (Moderate) 30 (Moderate) 20 (Moderate) 18 (Good) 19 (Good) 17 (Good) 17 (Good) 20 (Good) 19 (Good) 17 (Good) 22 (Moderate) 19 (Good) 22 (Moderate) 23 (Moderate) 22 (Moderate) 22 (Moderate)
data source »

Quality of life in Haarlem

Green and Parks in the City

Haarlem 71%

Belgium: 64% Luxembourg: 83% Germany: 78% Denmark: 78% Liechtenstein: 88%

particulate matter PM2.5

Haarlem 14 (Moderate)

Pleasure of spending time in the city

Haarlem 84%

Belgium: 64% Luxembourg: 85% Germany: 80% Denmark: 86% Liechtenstein: 94%

particulate matter PM10

Haarlem 22 (Moderate)

Air Pollution

Haarlem 21%

Belgium: 45% Luxembourg: 19% Germany: 25% Denmark: 18% Liechtenstein: 6.3%

Garbage Disposal

Haarlem 68%

Belgium: 54% Luxembourg: 84% Germany: 74% Denmark: 80% Liechtenstein: 100%

Availability and quality of drinking water

Haarlem 86%

Belgium: 70% Luxembourg: 83% Germany: 82% Denmark: 87% Liechtenstein: 100%

Cleanliness and tidiness

Haarlem 73%

Belgium: 46% Luxembourg: 82% Germany: 65% Denmark: 75% Liechtenstein: 94%

Noise and Light pollution

Haarlem 25%

Belgium: 54% Luxembourg: 29% Germany: 42% Denmark: 32% Liechtenstein: 19%

Water Pollution

Haarlem 25%

Belgium: 42% Luxembourg: 19% Germany: 23% Denmark: 19% Liechtenstein: 0%
Source: Numbeo


Haarlem

Thursday, August 27, 2026 at 3:00 AM

PM2,5 11 (Good)

particulate matter (PM2.5) dust

PM10 15 (Good)

particulate matter (PM10) suspended dust

O3 56 (Good)

ozone (O3)

NO2 15 (Good)

nitrogen dioxide (NO2)

SO2 1.1 (Good)

sulfur dioxide (SO2)

CO 190 (Good)

carbon monoxide (CO)

Haarlem

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 5.3 3.6 4.4 4.9 6.8 7.9 9 12
pm10 8.4 6.1 9.9 9.6 12 12 13 15
o3 52 54 59 68 57 70 62 72
no2 15 13 11 7.5 20 13 20 18
so2 0.92 2 2.1 1.4 1.6 1.2 1.6 1.6
co 168 194 205 192 219 183 201 215

Haarlem-Schipholweg

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
no2 15 19 17 16 22 27 30 22 19 19 15 20 18 22 21 32 25 24 30 28 23 21 21 20 27 30 29 30 26 27 30 20 29 27 22 21 21 23 30 33 37 37 35 25 31 26 23 24 25 24 27 30 33 26 26 31
o3 64 55 49 47 32 31 25 34 36 44 51 55 52 57 39 34 35 35 16 33 42 44 64 53 73 44 40 37 41 35 35 37 31 34 39 42 41 51 33 33 20 19 24 20 31 36 39 42 54 49 45 35 24 35 31 20
pm10 16 21 18 20 19 20 16 15 15 16 13 14 14 20 23 24 21 18 21 19 17 14 17 25 26 26 23 23 19 18 19 19 17 16 15 17 16 18 21 30 31 30 20 18 19 17 17 20 19 17 22 19 22 23 22 22

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

🌦️ Weather · 16-day Forecast — Haarlem

🌦️ WEATHER · 16-DAY FORECASTHaarlem☀️22°Clear skyToday · ↑24° ↓11°💨 6 km/h · 💧 48%Mon24.08☀️24°11°Tue25.08☀️26°13°Wed26.08☁️26°15°Thu27.08🌧️30°18°Fri28.08🌧️22°17°Sat29.08🌧️21°18°Sun30.08🌧️21°19°Mon31.08🌧️18°16°Tue1.09🌧️19°17°Wed2.09🌧️20°17°Thu3.09🌧️22°19°Fri4.09☀️23°19°Sat5.09🌧️23°16°Sun6.09🌧️18°14°Mon7.09☁️21°12°Tue8.09☁️19°17°pollution-alert.com · August 27, 2026

16-day weather forecast for Haarlem: today around 24°C (clear sky), lows near 11°C. Daily temperature and conditions, updated every day. Strong wind (about 23 km/h) is actively clearing smog and dust away.

☀️ UV Index · 16-day Forecast — Haarlem

☀️ UV INDEX · 16-DAY FORECASTHaarlem03681111+5.5UV MODERATEtoday, day maxSeek shade around midday. SPF 30+, sunglasses and ahat for longer stays.⏱ Unprotected fair skin can burn in about 35 min6Wed26.085Thu27.084Fri28.084Sat29.085Sun30.083Mon31.085Tue1.095Wed2.093Thu3.092Fri4.093Sat5.091Sun6.095Mon7.094Tue8.095Wed9.095Thu10.090-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com · August 27, 2026

The UV index in Haarlem today is 5.5 (moderate) — unprotected fair skin can burn in about 35 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Haarlem — compare nearby locations.

Frequently asked questions

Is the air safe to breathe in Haarlem today?
The current average PM2.5 across Haarlem is about 11 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.
What is the current PM2.5 level in Haarlem?
Right now PM2.5 in Haarlem averages about 11 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 Haarlem?
Over the past week, the highest daily PM2.5 in Haarlem was recorded on Thursday, August 27 (about 12 µg/m³).
What is the UV index in Haarlem today?
The UV index in Haarlem today is 5.5 (moderate) — unprotected fair skin can burn in about 35 minutes.
Does today's wind help disperse smog in Haarlem?
Strong wind (about 23 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.