Hirara, Ishigaki, Okinawa, 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
Hirara, Ishigaki, Okinawa, Japan
AQI Trends: Highest and Lowest
Same Day Analysis (7th February):
On this day, AQI across the 4 years varied significantly: 2026 ranks 2nd highest AQI at 39 of Good air quality, showing improvement over 2025 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 6th Feb - 7th Feb 2026
Hirara, Ishigaki, Okinawa, Japan
7 AM6th Feb 2026
6 PM
6 AM7th Feb 2026
92AQI
19AQI
58AQI
8AQI
In the last 24 hours,
Hirara's AQI reached its highest point of 92 at 10 AM during the Day, while the lowest point, 8, was recorded at 8 PM during the Night between 6th Feb and 7th Feb 2026.
Day & Night AQI Trend : Jan - Feb 2026
Hirara, Ishigaki, Okinawa, Japan
16°C16/17°C
18°C17/18°C
17°C16/19°C
17°C16/17°C
19°C19/20°C
20°C19/20°C
21°C20/21°C
21°C20/21°C
21°C21/21°C
21°C21/22°C
21°C21/22°C
19°C17/21°C
16°C16/16°C
16°C15/17°C
17°C17/18°C
18°C18/19°C
19°C18/20°C
20°C19/21°C
21°C19/21°C
18°C18/19°C
18°C17/19°C
19°C18/20°C
21°C20/21°C
19°C18/19°C
18°C17/18°C
17°C17/17°C
19°C18/19°C
21°C20/21°C
22°C21/22°C
19°C17/20°C
58AQI
30AQI
49AQI
30AQI
2026 Days Vs Air Quality
Hirara, Ishigaki, Okinawa, Japan
95%
36
5%
2
Total number of days with different AQI categories in last 39 days in 2026 (326 days remaining)
Under WHO’s Safe Air Quality Limits: 95%
Health Risk Level:
Very Low
In 2026, 95% of 39 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
Hirara, Ishigaki, Okinawa, Japan
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
26AQI (US)
30AQI (US)
25AQI (US)
20AQI (US)
21AQI (US)
33AQI (US)
46AQI (US)
48AQI (US)
34AQI (US)
21AQI (US)
41AQI (US)
37AQI (US)
32AQI (US)
42AQI (US)
30AQI (US)
32AQI (US)
22AQI (US)
33AQI (US)
33AQI (US)
29AQI (US)
24AQI (US)
24AQI (US)
39AQI (US)
38AQI (US)
49AQI (US)
47AQI (US)
41AQI (US)
45AQI (US)
45AQI (US)
51AQI (US)
42AQI (US)
31AQI (US)
51AQI (US)
35AQI (US)
23AQI (US)
48AQI (US)
38AQI (US)
39AQI (US)
35AQI (US)
38AQI (US)
No. of days
202635AQI (US)
Highest AQI (US) recorded in
February38AQI (US)
Lowest AQI (US) recorded in
January35AQI (US)
202540AQI (US)
Highest AQI (US) recorded in
April50AQI (US)
Lowest AQI (US) recorded in
September28AQI (US)
202433AQI (US)
Highest AQI (US) recorded in
December38AQI (US)
Lowest AQI (US) recorded in
September25AQI (US)
202329AQI (US)
Highest AQI (US) recorded in
October40AQI (US)
Lowest AQI (US) recorded in
June14AQI (US)
202227AQI (US)
Highest AQI (US) recorded in
September39AQI (US)
Lowest AQI (US) recorded in
July11AQI (US)
202130AQI (US)
Highest AQI (US) recorded in
April40AQI (US)
Lowest AQI (US) recorded in
August21AQI (US)
202025AQI (US)
Highest AQI (US) recorded in
April46AQI (US)
Lowest AQI (US) recorded in
July11AQI (US)
Most & Least Polluted Years Over the Last 7 Years
Hirara's annual 2026 AQI (US) (35) shows an average percentage change of 18.2% (worsened AQI (US)) compared to previous years: 2020 (25), 2021 (30), 2022 (27), 2023 (29), 2024 (33), 2025 (40).