Ueda, Morioka, Iwate, 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
Ueda, Morioka, Iwate, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (9th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 46 of Good air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 8th Feb - 9th Feb 2026
Ueda, Morioka, Iwate, Japan
6 AM8th Feb 2026
4 PM
5 AM9th Feb 2026
36AQI
13AQI
54AQI
12AQI
In the last 24 hours,
Ueda's AQI reached its highest point of 54 at 5 AM during the Night, while the lowest point, 12, was recorded at 6 PM during the Night between 8th Feb and 9th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Ueda, Morioka, Iwate, Japan
-1°C-5/3°C
-4°C-7/-2°C
-2°C-7/3°C
-5°C-6/-3°C
-1°C-5/4°C
0°C-2/3°C
-2°C-6/1°C
-3°C-5/0°C
-4°C-9/1°C
-6°C-12/0°C
-8°C-12/-3°C
-6°C-10/-3°C
-7°C-12/-2°C
-6°C-10/-1°C
-7°C-11/-4°C
-7°C-12/-1°C
-3°C-8/1°C
-6°C-10/-1°C
-7°C-11/-1°C
-7°C-12/-1°C
-7°C-12/-1°C
-5°C-10/0°C
-6°C-10/0°C
-5°C-11/1°C
-1°C-6/2°C
1°C-3/3°C
-1°C-7/2°C
-6°C-10/-3°C
-7°C-11/-3°C
-5°C-10/-2°C
45AQI
28AQI
41AQI
26AQI
2026 Days Vs Air Quality
Ueda, Morioka, Iwate, Japan
100%
40
Total number of days with different AQI categories in last 41 days in 2026 (324 days remaining)
Under WHO’s Safe Air Quality Limits: 100%
Health Risk Level:
Very Low
In 2026, 100% of 41 days were within WHO’s safe air quality limits. The risk of health issues is Very Low, but health impacts are still unclear.
Annual Air Quality Insights
Ueda, Morioka, Iwate, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
22AQI (US)
24AQI (US)
29AQI (US)
21AQI (US)
21AQI (US)
23AQI (US)
29AQI (US)
34AQI (US)
31AQI (US)
30AQI (US)
20AQI (US)
18AQI (US)
20AQI (US)
23AQI (US)
25AQI (US)
36AQI (US)
38AQI (US)
25AQI (US)
36AQI (US)
27AQI (US)
21AQI (US)
28AQI (US)
49AQI (US)
48AQI (US)
41AQI (US)
29AQI (US)
38AQI (US)
27AQI (US)
25AQI (US)
40AQI (US)
43AQI (US)
44AQI (US)
42AQI (US)
31AQI (US)
45AQI (US)
46AQI (US)
28AQI (US)
12AQI (US)
21AQI (US)
46AQI (US)
30AQI (US)
35AQI (US)
No. of days
202631AQI (US)
Highest AQI (US) recorded in
February35AQI (US)
Lowest AQI (US) recorded in
January30AQI (US)
202539AQI (US)
Highest AQI (US) recorded in
July46AQI (US)
Lowest AQI (US) recorded in
September33AQI (US)
202439AQI (US)
Highest AQI (US) recorded in
April53AQI (US)
Lowest AQI (US) recorded in
December27AQI (US)
202343AQI (US)
Highest AQI (US) recorded in
April57AQI (US)
Lowest AQI (US) recorded in
September34AQI (US)
202239AQI (US)
Highest AQI (US) recorded in
April47AQI (US)
Lowest AQI (US) recorded in
August26AQI (US)
202135AQI (US)
Highest AQI (US) recorded in
June42AQI (US)
Lowest AQI (US) recorded in
August29AQI (US)
202032AQI (US)
Highest AQI (US) recorded in
August44AQI (US)
Lowest AQI (US) recorded in
September23AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Ueda's annual 2026 AQI (US) (31) shows an average percentage change of -17.5% (improved AQI (US)) compared to previous years: 2020 (32), 2021 (35), 2022 (39), 2023 (43), 2024 (39), 2025 (39).