Annual mean 24°C · wettest around September · prevailing wind NE
Warmest
33.0 °C
Coldest
18.2 °C
Wettest
63%
Windiest
6.2 m/s
Prevailing
NE
5.0 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 Yilan over the whole year is 24°C. August is the hottest month, with highs of about 33°C; February is the coldest, with lows of about 16°C. Yilan has no sharply defined rainy season: the chance of rain on a given day runs from 14% in November, the driest month, to 18% in September, the wettest. Winds in Yilan are highest in December, averaging 5.5 m/s (20 km/h), and lightest in June, at 3.6 m/s (13 km/h). The prevailing wind is from the NE. The clearest skies in Yilan come in August, when the sky is typically 62% covered; December is the cloudiest month, at 76%.
Month by month Yilan 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
19°C
16°C
16°C
17%
75%
5.0 m/s
56
7
70
February
19°C
16°C
17°C
15%
76%
4.8 m/s
55
13
66
March
22°C
18°C
20°C
16%
73%
4.4 m/s
63
24
55
April
25°C
21°C
26°C
15%
73%
4.0 m/s
48
40
31
May
28°C
24°C
30°C
17%
75%
3.9 m/s
27
38
13
June
31°C
27°C
34°C
17%
74%
3.6 m/s
6
23
1
July
33°C
28°C
36°C
17%
63%
3.9 m/s
2
13
0
August
33°C
28°C
36°C
15%
62%
3.6 m/s
2
15
0
September
31°C
26°C
33°C
18%
63%
4.2 m/s
10
33
2
October
27°C
24°C
27°C
17%
70%
5.4 m/s
47
44
19
November
25°C
21°C
24°C
14%
72%
5.1 m/s
62
36
40
December
20°C
18°C
18°C
17%
76%
5.5 m/s
60
12
66
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 Yilan weather by season
Year round, Yilan has days of about 19°C at their warmest in January, its coolest month, and 33°C in August, its warmest; the coolest hours of the day run from 16°C to 28°C through the year, and the average temperature over the year is 24°C around the clock. Rain is most likely around September 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.
Yilan weather in winterDecember to February
High 19°CLow 16°CRain 17%
Winter in Yilan has typical daily highs of about 19°C and lows of about 16°C, with a 17% chance of rain on a given day.
Yilan weather in springMarch to May
High 25°CLow 21°CRain 16%
Spring in Yilan has typical daily highs of about 25°C and lows of about 21°C, with a 16% chance of rain on a given day.
Yilan weather in summerJune to August
High 32°CLow 27°CRain 16%
Summer in Yilan has typical daily highs of about 32°C and lows of about 27°C, with a 16% chance of rain on a given day.
Yilan weather in autumnSeptember to November
High 28°CLow 24°CRain 16%
Autumn in Yilan has typical daily highs of about 28°C and lows of about 24°C, with a 16% chance of rain on a given day.
When is the rainy season in Yilan?
Yilan has no sharply defined rainy season: the chance of rain on a given day runs from 14% in November, the driest month, to 18% in September, the wettest.
What time of year is Yilan windiest?
Winds in Yilan are highest in December, averaging 5.5 m/s (20 km/h), and lightest in June, at 3.6 m/s (13 km/h). The prevailing wind is from the NE.
What is the average temperature in Yilan year round?
The average temperature in Yilan over the whole year is 24°C. August is the hottest month, with highs of about 33°C; February is the coldest, with lows of about 16°C.