Annual mean 25°C · wettest around August · prevailing wind SE
Warmest
32.5 °C
Coldest
24.5 °C
Wettest
91%
Windiest
2.3 m/s
Prevailing
SE
1.9 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
never good
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Chiang Rai over the whole year is 25°C. April is the hottest month, with highs of about 32°C; January is the coldest, with lows of about 15°C. Chiang Rai has no sharply defined rainy season: the chance of rain on a given day runs from 47% in November, the driest month, to 70% in August, the wettest. Winds in Chiang Rai are highest in May, averaging 1.4 m/s (5 km/h), and lightest in November, at 0.9 m/s (3 km/h). The prevailing wind is from the SE. The clearest skies in Chiang Rai come in March, when the sky is typically 22% covered; August is the cloudiest month, at 75%.
Month by month Chiang Rai climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
25°C
15°C
26°C
60%
36%
1.0 m/s
59
62
22
February
27°C
16°C
28°C
62%
23%
1.1 m/s
41
73
11
March
30°C
19°C
32°C
48%
22%
1.1 m/s
13
60
3
April
32°C
22°C
34°C
63%
36%
1.3 m/s
7
28
2
May
32°C
24°C
35°C
64%
53%
1.4 m/s
4
21
1
June
30°C
25°C
34°C
62%
66%
1.4 m/s
4
24
1
July
29°C
24°C
34°C
68%
71%
1.4 m/s
4
27
2
August
29°C
24°C
33°C
70%
75%
1.4 m/s
5
30
2
September
29°C
24°C
34°C
70%
63%
1.1 m/s
5
27
2
October
29°C
22°C
33°C
64%
54%
1.0 m/s
9
40
3
November
28°C
20°C
31°C
47%
41%
0.9 m/s
20
61
6
December
26°C
16°C
27°C
56%
35%
0.9 m/s
50
63
19
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Chiang Rai weather by season
Year round, Chiang Rai has days of about 25°C at their warmest in January, its coolest month, and 32°C in April, its warmest; the coolest hours of the day run from 15°C to 25°C through the year, and the average temperature over the year is 25°C around the clock. Rain is most likely around August and least likely around November. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Chiang Rai weather in winterDecember to February
High 26°CLow 16°CRain 60%
Winter in Chiang Rai has typical daily highs of about 26°C and lows of about 16°C, with a 60% chance of rain on a given day.
Chiang Rai weather in springMarch to May
High 31°CLow 22°CRain 58%
Spring in Chiang Rai has typical daily highs of about 31°C and lows of about 22°C, with a 58% chance of rain on a given day.
Chiang Rai weather in summerJune to August
High 30°CLow 24°CRain 67%
Summer in Chiang Rai has typical daily highs of about 30°C and lows of about 24°C, with a 67% chance of rain on a given day.
Chiang Rai weather in autumnSeptember to November
High 29°CLow 22°CRain 60%
Autumn in Chiang Rai has typical daily highs of about 29°C and lows of about 22°C, with a 60% chance of rain on a given day.
When is the rainy season in Chiang Rai?
Chiang Rai has no sharply defined rainy season: the chance of rain on a given day runs from 47% in November, the driest month, to 70% in August, the wettest.
What time of year is Chiang Rai windiest?
Winds in Chiang Rai are highest in May, averaging 1.4 m/s (5 km/h), and lightest in November, at 0.9 m/s (3 km/h). The prevailing wind is from the SE.
What is the average temperature in Chiang Rai year round?
The average temperature in Chiang Rai over the whole year is 25°C. April is the hottest month, with highs of about 32°C; January is the coldest, with lows of about 15°C.