Annual mean 16°C · wettest around March · prevailing wind S
Warmest
31.5 °C
Coldest
7.9 °C
Wettest
29%
Windiest
4.7 m/s
Prevailing
S
3.8 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 Yamaguchi over the whole year is 16°C. August is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 3°C. Yamaguchi has no sharply defined rainy season: the chance of rain on a given day runs from 12% in November, the driest month, to 21% in March, the wettest. Winds in Yamaguchi are highest in April, averaging 3.4 m/s (12 km/h), and lightest in October, at 2.8 m/s (10 km/h). The prevailing wind is from the S. The clearest skies in Yamaguchi come in November, when the sky is typically 59% covered; June is the cloudiest month, at 75%.
Month by month Yamaguchi 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
9°C
3°C
4°C
14%
68%
3.0 m/s
1
0
35
February
9°C
4°C
5°C
16%
67%
3.2 m/s
2
0
36
March
13°C
7°C
10°C
21%
65%
3.2 m/s
17
0
67
April
18°C
11°C
15°C
18%
63%
3.4 m/s
55
1
83
May
22°C
16°C
20°C
16%
68%
3.4 m/s
83
12
69
June
25°C
20°C
26°C
21%
75%
3.0 m/s
66
50
26
July
29°C
25°C
32°C
21%
73%
3.0 m/s
14
48
2
August
31°C
25°C
34°C
16%
64%
3.2 m/s
6
35
1
September
27°C
22°C
29°C
20%
72%
2.9 m/s
39
58
11
October
22°C
16°C
21°C
13%
64%
2.8 m/s
80
21
62
November
17°C
10°C
14°C
12%
59%
2.8 m/s
52
1
81
December
11°C
5°C
7°C
14%
68%
3.1 m/s
6
0
49
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 Yamaguchi weather by season
Year round, Yamaguchi has days of about 9°C at their warmest in January, its coolest month, and 31°C in August, its warmest; the coolest hours of the day run from 3°C to 25°C through the year, and the average temperature over the year is 16°C around the clock. Rain is most likely around March 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.
Yamaguchi weather in winterDecember to February
High 10°CLow 4°CRain 15%
Winter in Yamaguchi has typical daily highs of about 10°C and lows of about 4°C, with a 15% chance of rain on a given day.
Yamaguchi weather in springMarch to May
High 18°CLow 11°CRain 18%
Spring in Yamaguchi has typical daily highs of about 18°C and lows of about 11°C, with a 18% chance of rain on a given day.
Yamaguchi weather in summerJune to August
High 28°CLow 23°CRain 19%
Summer in Yamaguchi has typical daily highs of about 28°C and lows of about 23°C, with a 19% chance of rain on a given day.
Yamaguchi weather in autumnSeptember to November
High 22°CLow 16°CRain 15%
Autumn in Yamaguchi has typical daily highs of about 22°C and lows of about 16°C, with a 15% chance of rain on a given day.
When is the rainy season in Yamaguchi?
Yamaguchi has no sharply defined rainy season: the chance of rain on a given day runs from 12% in November, the driest month, to 21% in March, the wettest.
What time of year is Yamaguchi windiest?
Winds in Yamaguchi are highest in April, averaging 3.4 m/s (12 km/h), and lightest in October, at 2.8 m/s (10 km/h). The prevailing wind is from the S.
What is the average temperature in Yamaguchi year round?
The average temperature in Yamaguchi over the whole year is 16°C. August is the hottest month, with highs of about 31°C; January is the coldest, with lows of about 3°C.