Tokiwa, Saitama, 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
Tokiwa, Saitama, Saitama, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (5th February):
On this day, AQI across the 5 years varied significantly: 2026 ranks 1st highest AQI at 62 of Moderate air quality on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Feb - 5th Feb 2026
Tokiwa, Saitama, Saitama, Japan
6 AM4th Feb 2026
4 PM
5 AM5th Feb 2026
51AQI
34AQI
66AQI
32AQI
In the last 24 hours,
Tokiwa's AQI reached its highest point of 66 at 1 AM during the Night, while the lowest point, 32, was recorded at 6 PM during the Night between 4th Feb and 5th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Tokiwa, Saitama, Saitama, Japan
5°C5/6°C
6°C3/10°C
5°C2/8°C
8°C4/13°C
9°C3/12°C
5°C2/7°C
9°C4/15°C
8°C5/10°C
7°C4/11°C
10°C7/15°C
10°C6/13°C
8°C5/10°C
7°C5/9°C
6°C2/12°C
3°C2/6°C
3°C1/5°C
4°C1/7°C
5°C2/10°C
4°C2/6°C
4°C1/7°C
6°C3/9°C
6°C3/9°C
5°C3/8°C
4°C2/7°C
4°C1/8°C
6°C3/9°C
6°C4/9°C
6°C3/10°C
7°C3/10°C
9°C5/12°C
42AQI
32AQI
41AQI
29AQI
2026 Days Vs Air Quality
Tokiwa, Saitama, Saitama, Japan
92%
33
8%
3
Total number of days with different AQI categories in last 37 days in 2026 (328 days remaining)
Under WHO’s Safe Air Quality Limits: 92%
Health Risk Level:
Very Low
In 2026, 92% of 37 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
Tokiwa, Saitama, Saitama, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
29AQI (US)
24AQI (US)
19AQI (US)
33AQI (US)
49AQI (US)
16AQI (US)
30AQI (US)
37AQI (US)
22AQI (US)
41AQI (US)
36AQI (US)
19AQI (US)
33AQI (US)
16AQI (US)
32AQI (US)
50AQI (US)
52AQI (US)
33AQI (US)
51AQI (US)
41AQI (US)
18AQI (US)
27AQI (US)
41AQI (US)
42AQI (US)
45AQI (US)
25AQI (US)
34AQI (US)
14AQI (US)
19AQI (US)
38AQI (US)
39AQI (US)
40AQI (US)
25AQI (US)
25AQI (US)
43AQI (US)
62AQI (US)
32AQI (US)
39AQI (US)
No. of days
202633AQI (US)
Highest AQI (US) recorded in
February39AQI (US)
Lowest AQI (US) recorded in
January32AQI (US)
202543AQI (US)
Highest AQI (US) recorded in
October50AQI (US)
Lowest AQI (US) recorded in
February36AQI (US)
202441AQI (US)
Highest AQI (US) recorded in
July52AQI (US)
Lowest AQI (US) recorded in
December34AQI (US)
202343AQI (US)
Highest AQI (US) recorded in
April49AQI (US)
Lowest AQI (US) recorded in
August33AQI (US)
202241AQI (US)
Highest AQI (US) recorded in
June47AQI (US)
Lowest AQI (US) recorded in
August26AQI (US)
202138AQI (US)
Highest AQI (US) recorded in
May42AQI (US)
Lowest AQI (US) recorded in
April3AQI (US)
202037AQI (US)
Highest AQI (US) recorded in
August45AQI (US)
Lowest AQI (US) recorded in
September19AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Tokiwa's annual 2026 AQI (US) (33) shows an average percentage change of -17.3% (improved AQI (US)) compared to previous years: 2020 (37), 2021 (38), 2022 (41), 2023 (43), 2024 (41), 2025 (43).