Saiki, Oita, Japan Historical Air Quality Analysis
Dive into detailed Air Quality Insights with historical data, monthly patterns, and yearly trends at your fingertips!
March Air Quality Analysis
Saiki, Oita, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (7th March):
On this day, AQI across the 5 years varied significantly: 2026 ranks 4th highest AQI at 44 of Good air quality, showing improvement over 2024, 2023 and 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 6th Mar - 7th Mar 2026
Saiki, Oita, Japan
6 AM6th Mar 2026
6 PM
5 AM7th Mar 2026
76AQI
32AQI
74AQI
8AQI
In the last 24 hours,
Saiki's AQI reached its highest point of 76 at 10 AM during the Day, while the lowest point, 8, was recorded at 8 PM during the Night between 6th Mar and 7th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Saiki, Oita, Japan
11°C8/14°C
7°C2/12°C
1°C-2/2°C
2°C-3/8°C
6°C1/11°C
10°C5/13°C
8°C3/14°C
8°C3/13°C
11°C5/16°C
14°C11/17°C
11°C9/16°C
9°C6/11°C
8°C4/14°C
7°C4/10°C
9°C6/13°C
10°C5/16°C
13°C7/19°C
12°C9/15°C
12°C7/17°C
14°C12/15°C
13°C11/14°C
14°C12/15°C
11°C9/13°C
10°C6/13°C
11°C9/12°C
12°C9/15°C
9°C8/12°C
8°C5/12°C
10°C7/16°C
8°C5/12°C
49AQI
37AQI
46AQI
36AQI
2026 Days Vs Air Quality
Saiki, Oita, Japan
91%
60
9%
6
Total number of days with different AQI categories in last 67 days in 2026 (298 days remaining)
Under WHO’s Safe Air Quality Limits: 91%
Health Risk Level:
Very Low
In 2026, 91% of 67 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
Saiki, Oita, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
27AQI (US)
23AQI (US)
24AQI (US)
35AQI (US)
42AQI (US)
28AQI (US)
26AQI (US)
38AQI (US)
22AQI (US)
24AQI (US)
32AQI (US)
24AQI (US)
24AQI (US)
32AQI (US)
37AQI (US)
51AQI (US)
50AQI (US)
52AQI (US)
73AQI (US)
45AQI (US)
12AQI (US)
23AQI (US)
31AQI (US)
30AQI (US)
28AQI (US)
21AQI (US)
37AQI (US)
26AQI (US)
33AQI (US)
33AQI (US)
21AQI (US)
39AQI (US)
42AQI (US)
39AQI (US)
34AQI (US)
39AQI (US)
43AQI (US)
39AQI (US)
21AQI (US)
36AQI (US)
39AQI (US)
43AQI (US)
44AQI (US)
50AQI (US)
47AQI (US)
47AQI (US)
63AQI (US)
21AQI (US)
22AQI (US)
54AQI (US)
37AQI (US)
35AQI (US)
46AQI (US)
41AQI (US)
27AQI (US)
18AQI (US)
29AQI (US)
47AQI (US)
36AQI (US)
36AQI (US)
54AQI (US)
23AQI (US)
28AQI (US)
44AQI (US)
48AQI (US)
44AQI (US)
32AQI (US)
39AQI (US)
40AQI (US)
No. of days
202636AQI (US)
Highest AQI (US) recorded in
March40AQI (US)
Lowest AQI (US) recorded in
January32AQI (US)
202544AQI (US)
Highest AQI (US) recorded in
October55AQI (US)
Lowest AQI (US) recorded in
September30AQI (US)
202439AQI (US)
Highest AQI (US) recorded in
August49AQI (US)
Lowest AQI (US) recorded in
December32AQI (US)
202341AQI (US)
Highest AQI (US) recorded in
April49AQI (US)
Lowest AQI (US) recorded in
August30AQI (US)
202243AQI (US)
Highest AQI (US) recorded in
August50AQI (US)
Lowest AQI (US) recorded in
December36AQI (US)
202139AQI (US)
Highest AQI (US) recorded in
May46AQI (US)
Lowest AQI (US) recorded in
August32AQI (US)
202042AQI (US)
Highest AQI (US) recorded in
August59AQI (US)
Lowest AQI (US) recorded in
July37AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Saiki's annual 2026 AQI (US) (36) shows an average percentage change of -13.5% (improved AQI (US)) compared to previous years: 2020 (42), 2021 (39), 2022 (43), 2023 (41), 2024 (39), 2025 (44).