Kashiwa, Chiba, 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
Kashiwa, Chiba, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (5th March):
On this day, AQI across the 5 years varied significantly: 2026 ranks 2nd highest AQI at 56 of Moderate air quality, showing improvement over 2022 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 4th Mar - 5th Mar 2026
Kashiwa, Chiba, Japan
6 AM4th Mar 2026
5 PM
5 AM5th Mar 2026
73AQI
25AQI
82AQI
44AQI
In the last 24 hours,
Kashiwa's AQI reached its highest point of 82 at 9 PM during the Night, while the lowest point, 25, was recorded at 6 AM during the Day between 4th Mar and 5th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Kashiwa, Chiba, Japan
7°C4/10°C
9°C6/12°C
10°C6/14°C
3°C1/4°C
-1°C-2/0°C
1°C-3/5°C
6°C2/10°C
7°C5/8°C
7°C4/10°C
6°C4/9°C
10°C6/14°C
12°C9/16°C
9°C4/11°C
6°C3/9°C
8°C6/11°C
6°C3/10°C
7°C4/11°C
10°C6/15°C
13°C9/16°C
15°C12/18°C
12°C10/14°C
10°C7/13°C
9°C6/13°C
11°C9/14°C
13°C10/17°C
12°C8/16°C
11°C10/11°C
9°C6/10°C
7°C4/12°C
10°C6/14°C
57AQI
33AQI
46AQI
32AQI
2026 Days Vs Air Quality
Kashiwa, Chiba, Japan
86%
55
14%
9
Total number of days with different AQI categories in last 65 days in 2026 (300 days remaining)
Under WHO’s Safe Air Quality Limits: 86%
Health Risk Level:
Low
In 2026, 86% of 65 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
Kashiwa, Chiba, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
14AQI (US)
23AQI (US)
20AQI (US)
23AQI (US)
43AQI (US)
13AQI (US)
36AQI (US)
40AQI (US)
16AQI (US)
34AQI (US)
31AQI (US)
20AQI (US)
42AQI (US)
13AQI (US)
26AQI (US)
50AQI (US)
49AQI (US)
26AQI (US)
46AQI (US)
43AQI (US)
13AQI (US)
24AQI (US)
38AQI (US)
35AQI (US)
12AQI (US)
19AQI (US)
38AQI (US)
33AQI (US)
18AQI (US)
25AQI (US)
36AQI (US)
38AQI (US)
44AQI (US)
29AQI (US)
40AQI (US)
60AQI (US)
57AQI (US)
18AQI (US)
10AQI (US)
33AQI (US)
41AQI (US)
59AQI (US)
28AQI (US)
44AQI (US)
58AQI (US)
69AQI (US)
59AQI (US)
14AQI (US)
31AQI (US)
29AQI (US)
33AQI (US)
39AQI (US)
36AQI (US)
41AQI (US)
40AQI (US)
33AQI (US)
17AQI (US)
42AQI (US)
42AQI (US)
35AQI (US)
65AQI (US)
43AQI (US)
53AQI (US)
56AQI (US)
29AQI (US)
39AQI (US)
50AQI (US)
No. of days
202635AQI (US)
Highest AQI (US) recorded in
March50AQI (US)
Lowest AQI (US) recorded in
January29AQI (US)
202541AQI (US)
Highest AQI (US) recorded in
December50AQI (US)
Lowest AQI (US) recorded in
May34AQI (US)
202439AQI (US)
Highest AQI (US) recorded in
July49AQI (US)
Lowest AQI (US) recorded in
September31AQI (US)
202340AQI (US)
Highest AQI (US) recorded in
April47AQI (US)
Lowest AQI (US) recorded in
August28AQI (US)
202239AQI (US)
Highest AQI (US) recorded in
March44AQI (US)
Lowest AQI (US) recorded in
September30AQI (US)
202138AQI (US)
Highest AQI (US) recorded in
December46AQI (US)
Lowest AQI (US) recorded in
August31AQI (US)
202037AQI (US)
Highest AQI (US) recorded in
November47AQI (US)
Lowest AQI (US) recorded in
September26AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Kashiwa's annual 2026 AQI (US) (35) shows an average percentage change of -10.06% (improved AQI (US)) compared to previous years: 2020 (37), 2021 (38), 2022 (39), 2023 (40), 2024 (39), 2025 (41).