Air Quality Niigata Prefecture
Niigata Prefecture AQI – Detailed Air Quality
Display current air quality index and forecast for the upcoming days in Niigata Prefecture.
Today’s Air Quality Index (AQI)
Real-time PM2.5, PM10 air pollution level in Niigata City, Niigata Capital
2:26 PM,
October 3, 2026
Last updated on: 2:26 PM
Live AQI
28
Air Quality is
Good
PM₂.₅:
5.67µg/m³
PM₁₀:
10.95µg/m³
Good
Air is clean and safe. No health risks expected. Everyone can enjoy outdoor activities without concern.
Air Quality Hourly Forecast
28
Min
at 2:00 PM on Oct 3
73
Max
at 11:00 AM on Oct 4, 2026
Niigata Prefecture Historical Air Quality Data
Display historical AQI data calendar by selecting a specific date and location Niigata Prefecture.
August
October
Niigata City, Niigata Capital Historical Air Quality Data
Explore historical AQI data and pollutant changes over time.
Oct 3, 2026
2:26 PM
SUNMONTUEWEDTHUFRISAT
30
50
Good
PM2.5:
10
AQI
50
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
10
µg/m3
PM₁₀
11
µg/m3
SO₂
7
µg/m3
NO₂
4
µg/m3
O₃
19
µg/m3
CO
123
µg/m3
AQI Hourly Forecast Graph
40
Min
at 2:00 PM on Aug 30
69
Max
at 12:00 AM on Aug 30, 2026
31
64
Moderate
PM2.5:
14
AQI
64
Air Quality is
Moderate
Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅
14
µg/m3
PM₁₀
14
µg/m3
SO₂
6
µg/m3
NO₂
4
µg/m3
O₃
36
µg/m3
CO
137
µg/m3
AQI Hourly Forecast Graph
58
Min
at 7:00 PM on Aug 31
70
Max
at 4:00 AM on Aug 31, 2026
01
74
Moderate
PM2.5:
17
AQI
74
Air Quality is
Moderate
Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅
17
µg/m3
PM₁₀
18
µg/m3
SO₂
6
µg/m3
NO₂
4
µg/m3
O₃
36
µg/m3
CO
145
µg/m3
AQI Hourly Forecast Graph
64
Min
at 1:00 AM on Sep 1
81
Max
at 4:00 AM on Sep 1, 2026
02
61
Moderate
PM2.5:
13
AQI
61
Air Quality is
Moderate
Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅
13
µg/m3
PM₁₀
14
µg/m3
SO₂
6
µg/m3
NO₂
3
µg/m3
O₃
48
µg/m3
CO
127
µg/m3
AQI Hourly Forecast Graph
50
Min
at 7:00 AM on Sep 2
68
Max
at 1:00 AM on Sep 2, 2026
03
50
Good
PM2.5:
10
AQI
50
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
10
µg/m3
PM₁₀
10
µg/m3
SO₂
4
µg/m3
NO₂
4
µg/m3
O₃
21
µg/m3
CO
134
µg/m3
AQI Hourly Forecast Graph
33
Min
at 5:00 PM on Sep 3
64
Max
at 1:00 AM on Sep 3, 2026
04
45
Good
PM2.5:
9
AQI
45
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
9
µg/m3
PM₁₀
10
µg/m3
SO₂
6
µg/m3
NO₂
4
µg/m3
O₃
31
µg/m3
CO
129
µg/m3
AQI Hourly Forecast Graph
41
Min
at 6:00 AM on Sep 4
52
Max
at 11:00 PM on Sep 4, 2026
05
35
Good
PM2.5:
7
AQI
35
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
7
µg/m3
PM₁₀
8
µg/m3
SO₂
6
µg/m3
NO₂
3
µg/m3
O₃
54
µg/m3
CO
145
µg/m3
AQI Hourly Forecast Graph
15
Min
at 12:00 AM on Sep 5
48
Max
at 1:00 AM on Sep 5, 2026
06
5
Good
PM2.5:
1
AQI
5
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
1
µg/m3
PM₁₀
2
µg/m3
SO₂
3
µg/m3
NO₂
2
µg/m3
O₃
59
µg/m3
CO
145
µg/m3
AQI Hourly Forecast Graph
5
Min
at 6:00 AM on Sep 6
12
Max
at 1:00 AM on Sep 6, 2026
07
35
Good
PM2.5:
7
AQI
35
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
7
µg/m3
PM₁₀
7
µg/m3
SO₂
6
µg/m3
NO₂
4
µg/m3
O₃
29
µg/m3
CO
144
µg/m3
AQI Hourly Forecast Graph
13
Min
at 1:00 AM on Sep 7
60
Max
at 12:00 AM on Sep 7, 2026
08
50
Good
PM2.5:
10
AQI
50
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
10
µg/m3
PM₁₀
11
µg/m3
SO₂
6
µg/m3
NO₂
5
µg/m3
O₃
20
µg/m3
CO
163
µg/m3
AQI Hourly Forecast Graph
31
Min
at 11:00 PM on Sep 8
69
Max
at 2:00 AM on Sep 8, 2026
09
15
Good
PM2.5:
3
AQI
15
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
3
µg/m3
PM₁₀
4
µg/m3
SO₂
5
µg/m3
NO₂
3
µg/m3
O₃
44
µg/m3
CO
201
µg/m3
AQI Hourly Forecast Graph
11
Min
at 10:00 AM on Sep 9
30
Max
at 1:00 AM on Sep 9, 2026
10
45
Good
PM2.5:
9
AQI
45
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
9
µg/m3
PM₁₀
10
µg/m3
SO₂
6
µg/m3
NO₂
4
µg/m3
O₃
30
µg/m3
CO
201
µg/m3
AQI Hourly Forecast Graph
23
Min
at 1:00 AM on Sep 10
62
Max
at 12:00 AM on Sep 10, 2026
11
71
Moderate
PM2.5:
16
AQI
71
Air Quality is
Moderate
Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅
16
µg/m3
PM₁₀
17
µg/m3
SO₂
6
µg/m3
NO₂
5
µg/m3
O₃
26
µg/m3
CO
209
µg/m3
AQI Hourly Forecast Graph
64
Min
at 1:00 AM on Sep 11
83
Max
at 12:00 AM on Sep 11, 2026
12
67
Moderate
PM2.5:
15
AQI
67
Air Quality is
Moderate
Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅
15
µg/m3
PM₁₀
15
µg/m3
SO₂
6
µg/m3
NO₂
3
µg/m3
O₃
33
µg/m3
CO
195
µg/m3
AQI Hourly Forecast Graph
59
Min
at 8:00 PM on Sep 12
92
Max
at 2:00 AM on Sep 12, 2026
13
61
Moderate
PM2.5:
13
AQI
61
Air Quality is
Moderate
Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅
13
µg/m3
PM₁₀
13
µg/m3
SO₂
6
µg/m3
NO₂
3
µg/m3
O₃
32
µg/m3
CO
180
µg/m3
AQI Hourly Forecast Graph
48
Min
at 6:00 PM on Sep 13
70
Max
at 2:00 AM on Sep 13, 2026
14
30
Good
PM2.5:
6
AQI
30
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
6
µg/m3
PM₁₀
7
µg/m3
SO₂
5
µg/m3
NO₂
3
µg/m3
O₃
32
µg/m3
CO
123
µg/m3
AQI Hourly Forecast Graph
17
Min
at 8:00 AM on Sep 14
55
Max
at 1:00 AM on Sep 14, 2026
15
40
Good
PM2.5:
8
AQI
40
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
8
µg/m3
PM₁₀
8
µg/m3
SO₂
6
µg/m3
NO₂
4
µg/m3
O₃
29
µg/m3
CO
124
µg/m3
AQI Hourly Forecast Graph
32
Min
at 12:00 AM on Sep 15
50
Max
at 2:00 AM on Sep 15, 2026
16
35
Good
PM2.5:
7
AQI
35
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
7
µg/m3
PM₁₀
7
µg/m3
SO₂
6
µg/m3
NO₂
4
µg/m3
O₃
26
µg/m3
CO
136
µg/m3
AQI Hourly Forecast Graph
28
Min
at 5:00 AM on Sep 16
45
Max
at 12:00 AM on Sep 16, 2026
17
50
Good
PM2.5:
10
AQI
50
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
10
µg/m3
PM₁₀
11
µg/m3
SO₂
6
µg/m3
NO₂
3
µg/m3
O₃
44
µg/m3
CO
142
µg/m3
AQI Hourly Forecast Graph
43
Min
at 3:00 AM on Sep 17
59
Max
at 12:00 AM on Sep 17, 2026
18
54
Moderate
PM2.5:
11
AQI
54
Air Quality is
Moderate
Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅
11
µg/m3
PM₁₀
12
µg/m3
SO₂
6
µg/m3
NO₂
3
µg/m3
O₃
49
µg/m3
CO
124
µg/m3
AQI Hourly Forecast Graph
40
Min
at 7:00 AM on Sep 18
68
Max
at 12:00 AM on Sep 18, 2026
19
50
Good
PM2.5:
10
AQI
50
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
10
µg/m3
PM₁₀
10
µg/m3
SO₂
6
µg/m3
NO₂
2
µg/m3
O₃
38
µg/m3
CO
114
µg/m3
AQI Hourly Forecast Graph
26
Min
at 8:00 AM on Sep 19
73
Max
at 12:00 AM on Sep 19, 2026
20
30
Good
PM2.5:
6
AQI
30
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
6
µg/m3
PM₁₀
7
µg/m3
SO₂
5
µg/m3
NO₂
2
µg/m3
O₃
39
µg/m3
CO
113
µg/m3
AQI Hourly Forecast Graph
25
Min
at 8:00 AM on Sep 20
76
Max
at 1:00 AM on Sep 20, 2026
21
15
Good
PM2.5:
3
AQI
15
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
3
µg/m3
PM₁₀
5
µg/m3
SO₂
4
µg/m3
NO₂
3
µg/m3
O₃
42
µg/m3
CO
120
µg/m3
AQI Hourly Forecast Graph
10
Min
at 12:00 PM on Sep 21
28
Max
at 1:00 AM on Sep 21, 2026
22
45
Good
PM2.5:
9
AQI
45
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
9
µg/m3
PM₁₀
16
µg/m3
SO₂
4
µg/m3
NO₂
3
µg/m3
O₃
46
µg/m3
CO
127
µg/m3
AQI Hourly Forecast Graph
21
Min
at 1:00 AM on Sep 22
71
Max
at 12:00 AM on Sep 22, 2026
23
61
Moderate
PM2.5:
13
AQI
61
Air Quality is
Moderate
Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅
13
µg/m3
PM₁₀
16
µg/m3
SO₂
7
µg/m3
NO₂
4
µg/m3
O₃
45
µg/m3
CO
145
µg/m3
AQI Hourly Forecast Graph
54
Min
at 6:00 PM on Sep 23
79
Max
at 2:00 AM on Sep 23, 2026
24
40
Good
PM2.5:
8
AQI
40
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
8
µg/m3
PM₁₀
10
µg/m3
SO₂
5
µg/m3
NO₂
5
µg/m3
O₃
41
µg/m3
CO
139
µg/m3
AQI Hourly Forecast Graph
30
Min
at 11:00 AM on Sep 24
59
Max
at 2:00 AM on Sep 24, 2026
25
35
Good
PM2.5:
7
AQI
35
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
7
µg/m3
PM₁₀
9
µg/m3
SO₂
5
µg/m3
NO₂
4
µg/m3
O₃
48
µg/m3
CO
135
µg/m3
AQI Hourly Forecast Graph
29
Min
at 1:00 PM on Sep 25
55
Max
at 1:00 AM on Sep 25, 2026
26
54
Moderate
PM2.5:
11
AQI
54
Air Quality is
Moderate
Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅
11
µg/m3
PM₁₀
12
µg/m3
SO₂
7
µg/m3
NO₂
3
µg/m3
O₃
35
µg/m3
CO
140
µg/m3
AQI Hourly Forecast Graph
44
Min
at 1:00 AM on Sep 26
77
Max
at 12:00 AM on Sep 26, 2026
27
64
Moderate
PM2.5:
14
AQI
64
Air Quality is
Moderate
Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅
14
µg/m3
PM₁₀
15
µg/m3
SO₂
7
µg/m3
NO₂
4
µg/m3
O₃
33
µg/m3
CO
138
µg/m3
AQI Hourly Forecast Graph
60
Min
at 12:00 PM on Sep 27
79
Max
at 1:00 AM on Sep 27, 2026
28
35
Good
PM2.5:
7
AQI
35
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
7
µg/m3
PM₁₀
7
µg/m3
SO₂
4
µg/m3
NO₂
5
µg/m3
O₃
23
µg/m3
CO
157
µg/m3
AQI Hourly Forecast Graph
25
Min
at 9:00 AM on Sep 28
59
Max
at 1:00 AM on Sep 28, 2026
29
30
Good
PM2.5:
6
AQI
30
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
6
µg/m3
PM₁₀
8
µg/m3
SO₂
4
µg/m3
NO₂
5
µg/m3
O₃
28
µg/m3
CO
151
µg/m3
AQI Hourly Forecast Graph
24
Min
at 6:00 AM on Sep 29
52
Max
at 12:00 AM on Sep 29, 2026
30
74
Moderate
PM2.5:
17
AQI
74
Air Quality is
Moderate
Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅
17
µg/m3
PM₁₀
19
µg/m3
SO₂
7
µg/m3
NO₂
6
µg/m3
O₃
38
µg/m3
CO
162
µg/m3
AQI Hourly Forecast Graph
55
Min
at 1:00 AM on Sep 30
90
Max
at 12:00 AM on Sep 30, 2026
01
58
Moderate
PM2.5:
12
AQI
58
Air Quality is
Moderate
Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅
12
µg/m3
PM₁₀
15
µg/m3
SO₂
5
µg/m3
NO₂
4
µg/m3
O₃
55
µg/m3
CO
147
µg/m3
AQI Hourly Forecast Graph
26
Min
at 10:00 PM on Oct 1
101
Max
at 2:00 AM on Oct 1, 2026
02
25
Good
PM2.5:
5
AQI
25
Air Quality is
Good
Air quality is excellent. No health concerns for any group.
PM₂.₅
5
µg/m3
PM₁₀
8
µg/m3
SO₂
4
µg/m3
NO₂
3
µg/m3
O₃
59
µg/m3
CO
148
µg/m3
AQI Hourly Forecast Graph
23
Min
at 1:00 PM on Oct 2
30
Max
at 4:00 AM on Oct 2, 2026
Niigata Prefecture Historical Weather Data
Display historical weather data by selecting a specific date and location Niigata Prefecture.
Display historical weather data by selecting a specific date and location Niigata Prefecture.
Niigata City, Niigata CapitalOct 2, 2026
20
°C
|
°F
Moderate rain at times
Max
21
°
Min
19
°
|
Humidity
54 %
|
Wind
95 Km/h
|
|
Visibility
10 km
|
UV Index
3.3
|
|
Sunrise
5:40 AM
|
Sunset
5:25 PM
|
|
Moonrise
8:37 PM
|
Moonset
11:26 AM
|
|
Moon Phase
55
|
Precipitation
1 mm
|
|
Snow
0 mm/h
|
Rain Chance
100%
|
Historical Weather from WeatherAPI
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SNA Japan RSS Feed
- Visible Minorities: Kimi Onoda and the Trauma of History September 13, 2026The Cabinet Minister in charge of policy towards “foreigners” is basically removing them from Japan. I see it as the natural outcome of Japan’s legacy of abuse towards its Visible Minorities.Debito Arudou
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- Visible Minorities: The Four Worst Words May 28, 2026Because what Japan is doing to its foreign residents is all within character, and everyone should have seen it coming long ago.Debito Arudou
- Visible Minorities: Life Under a Mad King April 7, 2026The world is living under a rogue regime—or rather, a rogue individual—who is wielding unprecedented power.Debito Arudou
- Visible Minorities: Revolution is Due March 1, 2026Democracies happen because of a Middle Class, but you have to keep it fed and watered. America is no longer doing that.Debito Arudou
- Visible Minorities: Confronting AI in Higher Education January 27, 2026Something very bad is happening around me in higher education: Artificial Intelligence (AI).Debito Arudou
- Visible Minorities: Karen Hill Anton’s Willful Ignorance of History December 1, 2025A prominent spokesperson within Japan’s foreign community won’t admit racism happens in Japan unless it rises to the level of racism in America.Debito Arudou
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- Visible Minorities: Takaichi’s PM Election Changes My Projections October 8, 2025The recent election of Sanae Takaichi as leader of the LDP probably means Japan’s first woman PM. But this is a huge step back for Japan’s democracy and diversity.Debito Arudou

