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Cool Season : (late October to end of February). Average temperature 21 C. and much cooler at night. The coolest months are December and January.
Hot Season : (early March to end of May) Average temperature 29.9 C. The hottest month is April
Rainy Season : (early June to end of October). Average temperature 25.5 C. The wettest month is September.
Average Conditions for Chiang Mai |
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| Month |
Average
Sunlight
(hours) |
Temperature |
Discomfort
from heat
& humidity |
Relative
humidity |
Average Precipitation ( mm ) |
Wet Days (+0.25 mm ) |
| Average |
Record |
| Max |
Min |
Max |
Min |
am |
pm |
| Jan |
9 |
13 |
29 |
6 |
36 |
Medium |
96 |
52 |
0 |
0.5 |
| Feb |
9 |
14 |
32 |
9 |
36 |
Medium |
93 |
44 |
10 |
1 |
| March |
9 |
17 |
34 |
13 |
39 |
High |
88 |
40 |
8 |
2 |
| April |
9 |
22 |
36 |
15 |
41 |
High |
88 |
49 |
36 |
5 |
| May |
8 |
23 |
34 |
19 |
41 |
Extreme |
90 |
60 |
122 |
12 |
| June |
6 |
23 |
32 |
21 |
38 |
High |
92 |
67 |
112 |
15 |
| July |
5 |
23 |
31 |
19 |
37 |
High |
94 |
69 |
213 |
21 |
| Aug |
4 |
23 |
31 |
21 |
37 |
High |
95 |
73 |
193 |
20 |
| Sept |
6 |
23 |
31 |
18 |
36 |
High |
96 |
72 |
249 |
17 |
| Oct |
7 |
21 |
31 |
16 |
36 |
High |
96 |
69 |
94 |
8 |
| Nov |
8 |
19 |
30 |
12 |
37 |
High |
96 |
63 |
31 |
4 |
| Dec |
9 |
15 |
28 |
6 |
36 |
Medium |
96 |
57 |
13 |
2 |
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