Si Wichai, Lamphun, Thailand 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
Si Wichai, Lamphun, Thailand
AQI Trends: Highest and Lowest
Same Day Analysis (10th March):
On this day, AQI across the 4 years varied significantly: 2026 ranks 3rd highest AQI at 106 of Poor air quality, showing improvement over 2024 and 2023 on the same day.
Download 2024 Annual Data
World Air Quality Report

Day & Night AQI Trend: 10th Mar - 11th Mar 2026
Si Wichai, Lamphun, Thailand
6 AM10th Mar 2026
6 PM
5 AM11th Mar 2026
146AQI
85AQI
90AQI
49AQI
In the last 24 hours,
Si Wichai's AQI reached its highest point of 146 at 8 AM during the Day, while the lowest point, 49, was recorded at 4 AM during the Night between 10th Mar and 11th Mar 2026.
Day & Night AQI Trend : Feb - Mar 2026
Si Wichai, Lamphun, Thailand
25°C17/35°C
26°C18/36°C
26°C18/37°C
26°C17/37°C
26°C17/36°C
26°C17/37°C
26°C17/37°C
27°C18/38°C
26°C22/33°C
25°C20/33°C
26°C20/34°C
26°C19/37°C
24°C19/34°C
25°C20/32°C
24°C20/28°C
23°C17/32°C
24°C16/35°C
26°C18/35°C
26°C17/36°C
26°C17/36°C
25°C16/37°C
26°C16/37°C
27°C18/37°C
27°C19/37°C
26°C20/33°C
27°C19/36°C
29°C20/37°C
28°C22/37°C
27°C21/34°C
26°C20/34°C
132AQI
88AQI
116AQI
96AQI
2026 Days Vs Air Quality
Si Wichai, Lamphun, Thailand
57%
39
42%
29
1%
1
Total number of days with different AQI categories in last 71 days in 2026 (294 days remaining)
Under WHO’s Safe Air Quality Limits: 0%
Health Risk Level:
Extreme
In 2026, 0% of 71 days were within WHO’s safe air quality limits. The risk of health issues is Extreme, potentially causing respiratory problems, heart disease, skin issues, and stress, especially for children, the elderly, and those with pre-existing conditions.
Annual Air Quality Insights
Si Wichai, Lamphun, Thailand
AQI levels in 2026
Jan.
Feb.
Mar.
Apr.
May
Jun.
Jul.
Aug.
Sep.
Oct.
Nov.
Dec.
97AQI (US)
91AQI (US)
92AQI (US)
72AQI (US)
72AQI (US)
80AQI (US)
78AQI (US)
75AQI (US)
71AQI (US)
81AQI (US)
84AQI (US)
91AQI (US)
94AQI (US)
92AQI (US)
85AQI (US)
92AQI (US)
73AQI (US)
72AQI (US)
67AQI (US)
67AQI (US)
69AQI (US)
91AQI (US)
92AQI (US)
76AQI (US)
72AQI (US)
75AQI (US)
86AQI (US)
94AQI (US)
131AQI (US)
131AQI (US)
133AQI (US)
114AQI (US)
110AQI (US)
103AQI (US)
90AQI (US)
92AQI (US)
99AQI (US)
103AQI (US)
102AQI (US)
113AQI (US)
98AQI (US)
101AQI (US)
93AQI (US)
95AQI (US)
103AQI (US)
114AQI (US)
119AQI (US)
124AQI (US)
137AQI (US)
124AQI (US)
101AQI (US)
95AQI (US)
110AQI (US)
110AQI (US)
94AQI (US)
64AQI (US)
57AQI (US)
81AQI (US)
108AQI (US)
114AQI (US)
114AQI (US)
112AQI (US)
147AQI (US)
158AQI (US)
141AQI (US)
120AQI (US)
126AQI (US)
114AQI (US)
106AQI (US)
86AQI (US)
102AQI (US)
125AQI (US)
No. of days
202698AQI (US)
Highest AQI (US) recorded in
March125AQI (US)
Lowest AQI (US) recorded in
January86AQI (US)
202574AQI (US)
Highest AQI (US) recorded in
March123AQI (US)
Lowest AQI (US) recorded in
September43AQI (US)
202469AQI (US)
Highest AQI (US) recorded in
March136AQI (US)
Lowest AQI (US) recorded in
June11AQI (US)
202374AQI (US)
Highest AQI (US) recorded in
March151AQI (US)
Lowest AQI (US) recorded in
July12AQI (US)
202291AQI (US)
Highest AQI (US) recorded in
December105AQI (US)
Lowest AQI (US) recorded in
November79AQI (US)
Most & Least Polluted Years Over the Last 5 Years
Si Wichai's annual 2026 AQI (US) (98) shows an average percentage change of 29.1% (worsened AQI (US)) compared to previous years: 2022 (91), 2023 (74), 2024 (69), 2025 (74).