Annual mean 16°C · wettest around June · prevailing wind E
Warmest
31.7 °C
Coldest
8.1 °C
Wettest
36%
Windiest
4.3 m/s
Prevailing
E
3.4 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 Kokubunji 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 2°C. Kokubunji has no sharply defined rainy season: the chance of rain on a given day runs from 17% in January, the driest month, to 32% in June, the wettest. Winds in Kokubunji are highest in April, averaging 3.4 m/s (12 km/h), and lightest in December, at 2.6 m/s (9 km/h). The prevailing wind is from the E. The clearest skies in Kokubunji come in January, when the sky is typically 39% covered; September is the cloudiest month, at 66%.
Month by month Kokubunji 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
2°C
4°C
17%
39%
2.8 m/s
0
0
28
February
9°C
3°C
4°C
20%
45%
3.2 m/s
2
0
33
March
13°C
7°C
9°C
28%
52%
3.3 m/s
16
0
60
April
18°C
12°C
15°C
30%
56%
3.4 m/s
50
3
76
May
22°C
16°C
20°C
30%
60%
3.2 m/s
78
17
62
June
25°C
20°C
25°C
32%
66%
2.9 m/s
61
44
27
July
29°C
24°C
32°C
27%
63%
2.8 m/s
18
42
5
August
31°C
26°C
33°C
28%
62%
2.9 m/s
9
32
3
September
27°C
22°C
28°C
29%
66%
2.8 m/s
42
47
17
October
21°C
16°C
20°C
29%
61%
2.8 m/s
68
17
62
November
16°C
10°C
13°C
21%
49%
2.7 m/s
42
0
80
December
11°C
5°C
7°C
18%
42%
2.6 m/s
4
0
51
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 Kokubunji weather by season
Year round, Kokubunji 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 2°C to 26°C through the year, and the average temperature over the year is 16°C around the clock. Rain is most likely around June and least likely around January. 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.
Kokubunji weather in winterDecember to February
High 10°CLow 3°CRain 18%
Winter in Kokubunji has typical daily highs of about 10°C and lows of about 3°C, with a 18% chance of rain on a given day.
Kokubunji weather in springMarch to May
High 18°CLow 12°CRain 29%
Spring in Kokubunji has typical daily highs of about 18°C and lows of about 12°C, with a 29% chance of rain on a given day.
Kokubunji weather in summerJune to August
High 28°CLow 23°CRain 29%
Summer in Kokubunji has typical daily highs of about 28°C and lows of about 23°C, with a 29% chance of rain on a given day.
Kokubunji weather in autumnSeptember to November
High 21°CLow 16°CRain 26%
Autumn in Kokubunji has typical daily highs of about 21°C and lows of about 16°C, with a 26% chance of rain on a given day.
When is the rainy season in Kokubunji?
Kokubunji has no sharply defined rainy season: the chance of rain on a given day runs from 17% in January, the driest month, to 32% in June, the wettest.
What time of year is Kokubunji windiest?
Winds in Kokubunji are highest in April, averaging 3.4 m/s (12 km/h), and lightest in December, at 2.6 m/s (9 km/h). The prevailing wind is from the E.
What is the average temperature in Kokubunji year round?
The average temperature in Kokubunji 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 2°C.