Annual mean 24°C · wettest around August · prevailing wind NW
Warmest
31.7 °C
Coldest
20.3 °C
Wettest
35%
Windiest
4.6 m/s
Prevailing
NW
4.1 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
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 Chiayi over the whole year is 24°C. July is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 16°C. The rainy (wet) season in Chiayi runs from June to August, peaking in August with a 41% chance of rain on a given day. The dry season is September to May; November is the driest month, at 10%. Winds in Chiayi are highest in December, averaging 4.2 m/s (15 km/h), and lightest in August, at 2.8 m/s (10 km/h). The prevailing wind is from the NW. The clearest skies in Chiayi come in November, when the sky is typically 62% covered; June is the cloudiest month, at 72%.
Month by month Chiayi 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
21°C
16°C
19°C
12%
65%
3.9 m/s
74
16
64
February
22°C
16°C
20°C
13%
65%
3.9 m/s
70
23
57
March
24°C
19°C
24°C
16%
64%
3.4 m/s
64
44
36
April
27°C
22°C
28°C
21%
67%
3.2 m/s
37
60
14
May
29°C
25°C
31°C
23%
70%
3.1 m/s
15
49
4
June
31°C
27°C
34°C
35%
72%
3.0 m/s
3
27
0
July
31°C
27°C
35°C
34%
69%
3.3 m/s
2
21
0
August
31°C
26°C
35°C
41%
71%
2.8 m/s
2
24
0
September
31°C
26°C
34°C
23%
65%
2.9 m/s
4
31
0
October
29°C
24°C
31°C
19%
63%
3.4 m/s
18
56
4
November
27°C
21°C
27°C
10%
62%
3.4 m/s
44
62
16
December
23°C
17°C
22°C
13%
64%
4.2 m/s
74
28
52
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 Chiayi weather by season
Year round, Chiayi has days of about 21°C at their warmest in January, its coolest month, and 31°C in July, its warmest; the coolest hours of the day run from 16°C to 27°C through the year, and the average temperature over the year is 24°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.
Chiayi weather in winterDecember to February
High 22°CLow 16°CRain 13%
Winter in Chiayi has typical daily highs of about 22°C and lows of about 16°C, with a 13% chance of rain on a given day.
Chiayi weather in springMarch to May
High 27°CLow 22°CRain 20%
Spring in Chiayi has typical daily highs of about 27°C and lows of about 22°C, with a 20% chance of rain on a given day.
Chiayi weather in summerJune to August
High 31°CLow 27°CRain 37%
Summer in Chiayi has typical daily highs of about 31°C and lows of about 27°C, with a 37% chance of rain on a given day.
Chiayi weather in autumnSeptember to November
High 29°CLow 24°CRain 17%
Autumn in Chiayi has typical daily highs of about 29°C and lows of about 24°C, with a 17% chance of rain on a given day.
When is the rainy season in Chiayi?
The rainy (wet) season in Chiayi runs from June to August, peaking in August with a 41% chance of rain on a given day. The dry season is September to May; November is the driest month, at 10%.
What time of year is Chiayi windiest?
Winds in Chiayi are highest in December, averaging 4.2 m/s (15 km/h), and lightest in August, at 2.8 m/s (10 km/h). The prevailing wind is from the NW.
What is the average temperature in Chiayi year round?
The average temperature in Chiayi over the whole year is 24°C. July is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 16°C.