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Nagano Prefecture Air Quality

ByPaul (Poison Fish) Manjyu Woodman

Aug 29, 2026 #Air Quality, #Nagano, #Nagano Prefecture, #Nagano Prefecture Air Quality, #Prefecture
Nagano Prefecture Air QualityNagano Prefecture Air Quality

Nagano Prefecture Air Quality

Nagano Prefecture AQI – Detailed Air Quality

Display current air quality index and forecast for the upcoming days in Nagano Prefecture.

Today’s Air Quality Index (AQI)
Real-time PM2.5, PM10 air pollution level in Nagano City, Nagano Capital
7:16 PM, September 11, 2026
Last updated on: 7:16 PM
Live AQI 21
Air Quality is Good
PM₂.₅: 4.14µg/m³ PM₁₀: 4.62µg/m³
Good Air is clean and safe. No health risks expected. Everyone can enjoy outdoor activities without concern.
Good Moderate Poor Unhealthy Severe Hazardous 0 50 100 150 200 250 300+
Air Quality Hourly Forecast
21
Min at 7:00 PM on Sep 11
56
Max at 1:00 PM on Sep 12, 2026

Nagano Prefecture Historical Air Quality Data

Display historical AQI data calendar by selecting a specific date and location Nagano Prefecture.

Nagano City, Nagano Capital Historical Air Quality Data

Explore historical AQI data and pollutant changes over time.
Sep 11, 2026 7:16 PM
SUNMONTUEWEDTHUFRISAT
26
10
Good
PM2.5: 2
AQI
10
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 2 µg/m3
PM₁₀ 3 µg/m3
SO₂ 0 µg/m3
NO₂ 2 µg/m3
O₃ 35 µg/m3
CO 125 µg/m3
AQI Hourly Forecast Graph
9
Min at 10:00 AM on Jul 26
18
Max at 1:00 AM on Jul 26, 2026
27
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 0 µg/m3
NO₂ 2 µg/m3
O₃ 44 µg/m3
CO 121 µg/m3
AQI Hourly Forecast Graph
11
Min at 1:00 AM on Jul 27
17
Max at 12:00 PM on Jul 27, 2026
28
20
Good
PM2.5: 4
AQI
20
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 4 µg/m3
PM₁₀ 5 µg/m3
SO₂ 0 µg/m3
NO₂ 2 µg/m3
O₃ 59 µg/m3
CO 137 µg/m3
AQI Hourly Forecast Graph
11
Min at 3:00 AM on Jul 28
28
Max at 9:00 AM on Jul 28, 2026
29
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 7 µg/m3
SO₂ 0 µg/m3
NO₂ 1 µg/m3
O₃ 62 µg/m3
CO 124 µg/m3
AQI Hourly Forecast Graph
7
Min at 3:00 PM on Jul 29
58
Max at 11:00 PM on Jul 29, 2026
30
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 14 µg/m3
SO₂ 1 µg/m3
NO₂ 2 µg/m3
O₃ 69 µg/m3
CO 167 µg/m3
AQI Hourly Forecast Graph
40
Min at 5:00 PM on Jul 30
70
Max at 6:00 AM on Jul 30, 2026
31
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 11 µg/m3
SO₂ 0 µg/m3
NO₂ 2 µg/m3
O₃ 57 µg/m3
CO 149 µg/m3
AQI Hourly Forecast Graph
31
Min at 6:00 AM on Jul 31
59
Max at 9:00 PM on Jul 31, 2026
01
87
Moderate
PM2.5: 21
AQI
87
Air Quality is Moderate Air is acceptable, but sensitive individuals should closely monitor their symptoms.
PM₂.₅ 21 µg/m3
PM₁₀ 31 µg/m3
SO₂ 1 µg/m3
NO₂ 1 µg/m3
O₃ 86 µg/m3
CO 155 µg/m3
AQI Hourly Forecast Graph
58
Min at 1:00 AM on Aug 1
112
Max at 9:00 PM on Aug 1, 2026
02
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 12 µg/m3
SO₂ 0 µg/m3
NO₂ 2 µg/m3
O₃ 50 µg/m3
CO 128 µg/m3
AQI Hourly Forecast Graph
10
Min at 11:00 PM on Aug 2
103
Max at 1:00 AM on Aug 2, 2026
03
10
Good
PM2.5: 2
AQI
10
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 2 µg/m3
PM₁₀ 6 µg/m3
SO₂ 1 µg/m3
NO₂ 2 µg/m3
O₃ 51 µg/m3
CO 86 µg/m3
AQI Hourly Forecast Graph
10
Min at 1:00 AM on Aug 3
15
Max at 6:00 AM on Aug 3, 2026
04
20
Good
PM2.5: 4
AQI
20
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 4 µg/m3
PM₁₀ 8 µg/m3
SO₂ 1 µg/m3
NO₂ 2 µg/m3
O₃ 55 µg/m3
CO 84 µg/m3
AQI Hourly Forecast Graph
13
Min at 1:00 AM on Aug 4
25
Max at 8:00 AM on Aug 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 13 µg/m3
SO₂ 1 µg/m3
NO₂ 2 µg/m3
O₃ 64 µg/m3
CO 91 µg/m3
AQI Hourly Forecast Graph
16
Min at 1:00 AM on Aug 5
45
Max at 9:00 PM on Aug 5, 2026
06
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 15 µg/m3
SO₂ 1 µg/m3
NO₂ 2 µg/m3
O₃ 70 µg/m3
CO 110 µg/m3
AQI Hourly Forecast Graph
45
Min at 9:00 PM on Aug 6
53
Max at 4:00 AM on Aug 6, 2026
07
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 14 µg/m3
SO₂ 1 µg/m3
NO₂ 2 µg/m3
O₃ 76 µg/m3
CO 122 µg/m3
AQI Hourly Forecast Graph
49
Min at 1:00 AM on Aug 7
67
Max at 6:00 AM on Aug 7, 2026
08
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 11 µg/m3
SO₂ 1 µg/m3
NO₂ 2 µg/m3
O₃ 57 µg/m3
CO 105 µg/m3
AQI Hourly Forecast Graph
24
Min at 11:00 PM on Aug 8
63
Max at 5:00 AM on Aug 8, 2026
09
20
Good
PM2.5: 4
AQI
20
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 4 µg/m3
PM₁₀ 7 µg/m3
SO₂ 1 µg/m3
NO₂ 2 µg/m3
O₃ 54 µg/m3
CO 108 µg/m3
AQI Hourly Forecast Graph
18
Min at 10:00 PM on Aug 9
26
Max at 10:00 AM on Aug 9, 2026
10
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 0 µg/m3
NO₂ 1 µg/m3
O₃ 56 µg/m3
CO 107 µg/m3
AQI Hourly Forecast Graph
13
Min at 12:00 AM on Aug 10
18
Max at 1:00 AM on Aug 10, 2026
11
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 0 µg/m3
NO₂ 1 µg/m3
O₃ 42 µg/m3
CO 82 µg/m3
AQI Hourly Forecast Graph
3
Min at 9:00 AM on Aug 11
12
Max at 1:00 AM on Aug 11, 2026
12
10
Good
PM2.5: 2
AQI
10
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 2 µg/m3
PM₁₀ 2 µg/m3
SO₂ 0 µg/m3
NO₂ 2 µg/m3
O₃ 35 µg/m3
CO 73 µg/m3
AQI Hourly Forecast Graph
6
Min at 4:00 AM on Aug 12
11
Max at 10:00 AM on Aug 12, 2026
13
10
Good
PM2.5: 2
AQI
10
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 2 µg/m3
PM₁₀ 3 µg/m3
SO₂ 0 µg/m3
NO₂ 2 µg/m3
O₃ 41 µg/m3
CO 73 µg/m3
AQI Hourly Forecast Graph
5
Min at 6:00 AM on Aug 13
13
Max at 2:00 PM on Aug 13, 2026
14
10
Good
PM2.5: 2
AQI
10
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 2 µg/m3
PM₁₀ 2 µg/m3
SO₂ 0 µg/m3
NO₂ 3 µg/m3
O₃ 38 µg/m3
CO 76 µg/m3
AQI Hourly Forecast Graph
5
Min at 8:00 AM on Aug 14
13
Max at 12:00 AM on Aug 14, 2026
15
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 6 µg/m3
SO₂ 1 µg/m3
NO₂ 2 µg/m3
O₃ 47 µg/m3
CO 77 µg/m3
AQI Hourly Forecast Graph
12
Min at 8:00 AM on Aug 15
18
Max at 8:00 PM on Aug 15, 2026
16
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 7 µg/m3
SO₂ 1 µg/m3
NO₂ 2 µg/m3
O₃ 54 µg/m3
CO 90 µg/m3
AQI Hourly Forecast Graph
13
Min at 11:00 PM on Aug 16
20
Max at 1:00 PM on Aug 16, 2026
17
20
Good
PM2.5: 4
AQI
20
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 4 µg/m3
PM₁₀ 6 µg/m3
SO₂ 1 µg/m3
NO₂ 2 µg/m3
O₃ 45 µg/m3
CO 88 µg/m3
AQI Hourly Forecast Graph
14
Min at 1:00 AM on Aug 17
23
Max at 9:00 PM on Aug 17, 2026
18
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 1 µg/m3
NO₂ 3 µg/m3
O₃ 57 µg/m3
CO 102 µg/m3
AQI Hourly Forecast Graph
24
Min at 1:00 AM on Aug 18
64
Max at 11:00 AM on Aug 18, 2026
19
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 19 µg/m3
SO₂ 1 µg/m3
NO₂ 2 µg/m3
O₃ 78 µg/m3
CO 109 µg/m3
AQI Hourly Forecast Graph
49
Min at 1:00 AM on Aug 19
90
Max at 7:00 AM on Aug 19, 2026
20
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 9 µg/m3
SO₂ 1 µg/m3
NO₂ 2 µg/m3
O₃ 62 µg/m3
CO 105 µg/m3
AQI Hourly Forecast Graph
34
Min at 12:00 AM on Aug 20
58
Max at 1:00 AM on Aug 20, 2026
21
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 6 µg/m3
SO₂ 0 µg/m3
NO₂ 2 µg/m3
O₃ 60 µg/m3
CO 121 µg/m3
AQI Hourly Forecast Graph
24
Min at 8:00 AM on Aug 21
32
Max at 1:00 AM on Aug 21, 2026
22
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 1 µg/m3
NO₂ 2 µg/m3
O₃ 60 µg/m3
CO 116 µg/m3
AQI Hourly Forecast Graph
28
Min at 1:00 AM on Aug 22
34
Max at 7:00 AM on Aug 22, 2026
23
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 6 µg/m3
SO₂ 1 µg/m3
NO₂ 2 µg/m3
O₃ 61 µg/m3
CO 117 µg/m3
AQI Hourly Forecast Graph
19
Min at 9:00 PM on Aug 23
34
Max at 1:00 AM on Aug 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 1 µg/m3
NO₂ 2 µg/m3
O₃ 74 µg/m3
CO 104 µg/m3
AQI Hourly Forecast Graph
21
Min at 1:00 AM on Aug 24
48
Max at 12:00 PM on Aug 24, 2026
25
0
Good
PM2.5: 0
AQI
0
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 0 µg/m3
PM₁₀ 0 µg/m3
SO₂ 0 µg/m3
NO₂ 0 µg/m3
O₃ 3 µg/m3
CO 4 µg/m3
AQI Hourly Forecast Graph
36
Min at 1:00 AM on Aug 25
36
Max at 1:00 AM on Aug 25, 2026
26
20
Good
PM2.5: 4
AQI
20
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 4 µg/m3
PM₁₀ 6 µg/m3
SO₂ 0 µg/m3
NO₂ 2 µg/m3
O₃ 50 µg/m3
CO 119 µg/m3
AQI Hourly Forecast Graph
16
Min at 1:00 PM on Aug 26
36
Max at 4:00 AM on Aug 26, 2026
27
0
Good
PM2.5: 0
AQI
0
Air Quality is Good Air quality is excellent. No health concerns for any group.
PM₂.₅ 0 µg/m3
PM₁₀ 0 µg/m3
SO₂ 0 µg/m3
NO₂ 0 µg/m3
O₃ 2 µg/m3
CO 5 µg/m3
AQI Hourly Forecast Graph
28
Min at 1:00 AM on Aug 27
28
Max at 1:00 AM on Aug 27, 2026
29
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 3 µg/m3
SO₂ 0 µg/m3
NO₂ 2 µg/m3
O₃ 52 µg/m3
CO 133 µg/m3
AQI Hourly Forecast Graph
11
Min at 12:00 AM on Aug 29
18
Max at 2:00 PM on Aug 29, 2026

Nagano Prefecture Historical Weather Data

Display historical weather data by selecting a specific date and location Nagano Prefecture.

Display historical weather data by selecting a specific date and location Nagano Prefecture.

Nagano City, Nagano CapitalSep 10, 2026
weather image
17 °C | °F
Patchy rain possible
Max 20 °
Min 14 °
Humidity 90 %
Wind 26 Km/h
Visibility 8 km
UV Index 1.1
Sunrise 5:25 AM
Sunset 6:02 PM
Moonrise 3:45 AM
Moonset 5:22 PM
Precipitation 0.2 mm
Snow 0 mm/h
Rain Chance 100%
Historical Weather from WeatherAPI

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