Sengendainishi, Matsubushi, Saitama, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
February Air Quality Analysis
Sengendainishi, Matsubushi, Saitama, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (15th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 73 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 14th Feb - 15th Feb 2026
Sengendainishi, Matsubushi, Saitama, Japan
6 AM14th Feb 2026
5 PM
5 AM15th Feb 2026
62AQI
48AQI
90AQI
60AQI
In the last 24 hours,
Sengendainishi's AQI reached its highest point of 90 at 12 AM during the Night, while the lowest point, 48, was recorded at 4 PM during the Day between 14th Feb and 15th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Sengendainishi, Matsubushi, Saitama, Japan
10°C6/13°C
8°C5/10°C
7°C5/9°C
7°C2/12°C
4°C2/6°C
3°C1/5°C
4°C0/7°C
5°C2/10°C
4°C2/6°C
4°C1/7°C
6°C2/9°C
6°C3/9°C
5°C3/8°C
4°C2/7°C
5°C2/8°C
6°C2/9°C
6°C4/9°C
6°C3/10°C
7°C3/10°C
9°C5/12°C
10°C6/15°C
3°C1/4°C
-1°C-2/0°C
2°C-2/7°C
6°C2/11°C
6°C5/8°C
7°C4/11°C
7°C4/10°C
10°C5/13°C
12°C8/16°C
50AQI
32AQI
45AQI
32AQI
2026 Days Vs Air Quality
Sengendainishi, Matsubushi, Saitama, Japan
85%
39
15%
7
Total number of days with different AQI categories in last 47 days in 2026 (318 days remaining)
Under WHO’s Safe Air Quality Limits: 85%
Health Risk Level:
Low
In 2026, 85% of 47 days were within WHO’s safe air quality limits. The risk of health issues is Low, but the long-term effects, especially on vulnerable individuals, remain uncertain.
Annual Air Quality Insights
Sengendainishi, Matsubushi, Saitama, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
31AQI (US)
23AQI (US)
18AQI (US)
27AQI (US)
47AQI (US)
14AQI (US)
40AQI (US)
38AQI (US)
15AQI (US)
38AQI (US)
35AQI (US)
23AQI (US)
45AQI (US)
12AQI (US)
36AQI (US)
54AQI (US)
57AQI (US)
32AQI (US)
50AQI (US)
41AQI (US)
13AQI (US)
18AQI (US)
37AQI (US)
40AQI (US)
44AQI (US)
23AQI (US)
40AQI (US)
22AQI (US)
20AQI (US)
33AQI (US)
39AQI (US)
39AQI (US)
46AQI (US)
28AQI (US)
42AQI (US)
63AQI (US)
52AQI (US)
14AQI (US)
15AQI (US)
33AQI (US)
44AQI (US)
55AQI (US)
26AQI (US)
41AQI (US)
60AQI (US)
73AQI (US)
32AQI (US)
42AQI (US)
No. of days
202636AQI (US)
Highest AQI (US) recorded in
February42AQI (US)
Lowest AQI (US) recorded in
January32AQI (US)
202542AQI (US)
Highest AQI (US) recorded in
October53AQI (US)
Lowest AQI (US) recorded in
February35AQI (US)
202438AQI (US)
Highest AQI (US) recorded in
April46AQI (US)
Lowest AQI (US) recorded in
August32AQI (US)
202340AQI (US)
Highest AQI (US) recorded in
December48AQI (US)
Lowest AQI (US) recorded in
August25AQI (US)
202237AQI (US)
Highest AQI (US) recorded in
April44AQI (US)
Lowest AQI (US) recorded in
August20AQI (US)
202135AQI (US)
Highest AQI (US) recorded in
December42AQI (US)
Lowest AQI (US) recorded in
August27AQI (US)
202038AQI (US)
Highest AQI (US) recorded in
November46AQI (US)
Lowest AQI (US) recorded in
September27AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Sengendainishi's annual 2026 AQI (US) (36) shows an average percentage change of -7.2% (improved AQI (US)) compared to previous years: 2020 (38), 2021 (35), 2022 (37), 2023 (40), 2024 (38), 2025 (42).