This reference page collects chiang mai climate: monthly averages in one place: annual mean temperature 23.1 C; warmest month Apr (27.1 C); coldest month Dec (18.9 C); wettest month Aug (7.65 mm/day). Figures are refreshed automatically by a scheduled build and cached locally so the page keeps its values even when the upstream API is temporarily unavailable. Use the table below for exact numbers, or the related pages for the same dataset for neighbouring periods and locations.
Annual mean temperature 23.1 C
Warmest month Apr (27.1 C)
Coldest month Dec (18.9 C)
Wettest month Aug (7.65 mm/day)
All-time record high 40.5 C
All-time record low 5.0 C
Annual precipitation 1,245 mm / year
Coordinates 18.7883, 98.9853
Population 1,200,000
Average monthly temperature and rainfall in Chiang Mai
Month
Mean temp (C)
Rain (mm/day)
Record high (C)
Record low (C)
Jan
19.3
0.49
33.0
6.1
Feb
21.7
0.16
35.0
8.8
Mar
24.6
0.74
37.3
9.7
Apr
27.1
2.11
40.5
13.7
May
25.8
6.09
39.9
16.3
Jun
25.0
4.71
36.7
18.4
Jul
24.3
5.74
34.4
18.6
Aug
23.8
7.65
33.4
18.1
Sep
23.6
7.39
32.3
17.5
Oct
22.6
3.98
30.4
12.5
Nov
20.8
1.22
31.9
7.7
Dec
18.9
0.42
30.2
5.0
What the Chiang Mai climate table shows
Values are multi-decadal climatological averages for the 18.7883, 98.9853 grid cell, not a single year. Rain is the daily mean, so a value of 2.00 mm/day is about 60 mm across a 30-day month. Averages smooth over extremes, so use them for planning rather than for what to pack for next Tuesday.
Frequently asked questions
Where does the data on chiang mai climate: monthly averages come from?
From a public open API that is queried automatically and cached after every successful run.
How often is chiang mai climate: monthly averages updated?
The build runs on a schedule, so values refresh at least daily and old pages stay live.