Higashiosaka City Higashiosaka City Rokumanji Temple, Kamitakeshi, Nagano, 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
Higashiosaka City Higashiosaka City Rokumanji Temple, Kamitakeshi, Nagano, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (18th February):
On this day, AQI across the 3 years varied significantly: 2026 ranks 2nd highest AQI at 24 of Good air quality, showing improvement over 2025 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 17th Feb - 18th Feb 2026
Higashiosaka City Higashiosaka City Rokumanji Temple, Kamitakeshi, Nagano, Japan
6 AM17th Feb 2026
5 PM
5 AM18th Feb 2026
32AQI
14AQI
34AQI
21AQI
In the last 24 hours,
Higashiosaka City Higashiosaka City Rokumanji Temple's AQI reached its highest point of 34 at 6 PM during the Night, while the lowest point, 14, was recorded at 12 PM during the Day between 17th Feb and 18th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Higashiosaka City Higashiosaka City Rokumanji Temple, Kamitakeshi, Nagano, Japan
-2°C-6/3°C
-4°C-7/-1°C
-6°C-11/-2°C
-6°C-13/1°C
-2°C-6/1°C
-5°C-9/-1°C
-5°C-10/0°C
-2°C-9/6°C
-3°C-5/1°C
-3°C-8/1°C
-4°C-6/0°C
-5°C-8/1°C
-4°C-9/4°C
-2°C-7/4°C
-2°C-5/2°C
-1°C-8/7°C
1°C-5/9°C
1°C-3/8°C
-3°C-4/-2°C
-6°C-12/-3°C
-6°C-13/1°C
-2°C-10/9°C
1°C-3/3°C
-3°C-9/2°C
-2°C-8/6°C
1°C-6/11°C
4°C-3/14°C
1°C-2/5°C
0°C-4/6°C
1°C-3/8°C
39AQI
31AQI
42AQI
34AQI
2026 Days Vs Air Quality
Higashiosaka City Higashiosaka City Rokumanji Temple, Kamitakeshi, Nagano, Japan
80%
39
20%
10
Total number of days with different AQI categories in last 50 days in 2026 (315 days remaining)
Under WHO’s Safe Air Quality Limits: 80%
Health Risk Level:
Low
In 2026, 80% of 50 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
Higashiosaka City Higashiosaka City Rokumanji Temple, Kamitakeshi, Nagano, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
11AQI (US)
10AQI (US)
8AQI (US)
17AQI (US)
25AQI (US)
18AQI (US)
25AQI (US)
25AQI (US)
16AQI (US)
28AQI (US)
21AQI (US)
12AQI (US)
23AQI (US)
14AQI (US)
40AQI (US)
56AQI (US)
56AQI (US)
48AQI (US)
53AQI (US)
28AQI (US)
13AQI (US)
17AQI (US)
26AQI (US)
45AQI (US)
45AQI (US)
24AQI (US)
40AQI (US)
28AQI (US)
31AQI (US)
43AQI (US)
17AQI (US)
41AQI (US)
44AQI (US)
30AQI (US)
27AQI (US)
53AQI (US)
55AQI (US)
15AQI (US)
11AQI (US)
32AQI (US)
42AQI (US)
42AQI (US)
51AQI (US)
68AQI (US)
58AQI (US)
57AQI (US)
58AQI (US)
25AQI (US)
24AQI (US)
28AQI (US)
41AQI (US)
No. of days
202633AQI (US)
Highest AQI (US) recorded in
February41AQI (US)
Lowest AQI (US) recorded in
January28AQI (US)
202541AQI (US)
Highest AQI (US) recorded in
July47AQI (US)
Lowest AQI (US) recorded in
December34AQI (US)
202431AQI (US)
Highest AQI (US) recorded in
June42AQI (US)
Lowest AQI (US) recorded in
April7AQI (US)
202311AQI (US)
Highest AQI (US) recorded in
December12AQI (US)
Lowest AQI (US) recorded in
November9AQI (US)
202237AQI (US)
Highest AQI (US) recorded in
January37AQI (US)
Lowest AQI (US) recorded in
January37AQI (US)
202139AQI (US)
Highest AQI (US) recorded in
March45AQI (US)
Lowest AQI (US) recorded in
August31AQI (US)
202039AQI (US)
Highest AQI (US) recorded in
August52AQI (US)
Lowest AQI (US) recorded in
September32AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Higashiosaka City Higashiosaka City Rokumanji Temple's annual 2026 AQI (US) (33) shows an average percentage change of 21.7% (worsened AQI (US)) compared to previous years: 2020 (39), 2021 (39), 2022 (37), 2023 (11), 2024 (31), 2025 (41).