Kokubunji, Tokyo, Japan Climate Change Severity

81
Extreme
The current climate change severity in Kokubunji is Extreme, with a 56.5% worsening in the climate score compared to last 15 years. This suggests deteriorating conditions, with increasing negative impacts on weather patterns and environmental conditions.
Data: Jan. to Sep. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Kokubunji Weather Condition Changes (Historic Vs 2025)

2025
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2025

Over the past 15 year(s), Kokubunji temperature has changed by around +9.9%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to Sep. (Historical Vs 2025)

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
4739
-17.02%
cloudyCloudy
6361
-3.1%
rainyRainy
138104
-24.6%
snowySnowy
10
-100%
mistyMisty
00
0%

Disclaimer: Other weather conditions not shown may affect the total day count.

Climate Change Indicators:

Over the past 15 years, Kokubunji has experienced measurable shifts in key climate parameters, contributing to the current severity score of 81 (within the Extreme severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

81/100

Extreme

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Kokubunji experienced significant changes:

Temperature change of

+1.6 °C

Variation in annual rainfall

-30.02 %

Change in average humidity

-11.6 %

PM2.5 levels surged by

+59.5 %

Heatwave changed by

+43.8 day(s)

Coldwave changed by

-4.2 day(s)

Wind speeds changed by

+1.04 km/h

These indicators show extreme climate changes, including key climate parametes. The Extreme severity score necessitates immediate action, including large-scale mitigation efforts, climate resilience strategies, and extensive disaster preparedness.

Check how we calculate Climate Change Severity
Based on data from Jan. to Sep.

Kokubunji Weather Forecast 30 Days (October - November 2025)
Kokubunji, Tokyo, Japan

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Fri. 3, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon26°/21°
Humidity Icon54%
Wind Icon18km/h
Sat. 4, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon24°/21°
Humidity Icon70%
Wind Icon10km/h
Sun. 5, Oct.
cloudyCloudy
Temperature Icon28°/21°
Humidity Icon70%
Wind Icon16km/h
Mon. 6, Oct.
moderate rainModerate rain
Temperature Icon29°/20°
Humidity Icon68%
Wind Icon27km/h
Tue. 7, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon19°/18°
Humidity Icon69%
Wind Icon21km/h
Wed. 8, Oct.
partly cloudyPartly Cloudy
Temperature Icon27°/19°
Humidity Icon63%
Wind Icon17km/h
Thu. 9, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon28°/21°
Humidity Icon68%
Wind Icon20km/h
Fri. 10, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon18°/17°
Humidity Icon73%
Wind Icon15km/h
Sat. 11, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon17°/16°
Humidity Icon78%
Wind Icon15km/h
Sun. 12, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon19°/17°
Humidity Icon73%
Wind Icon10km/h
Mon. 13, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon28°/17°
Humidity Icon74%
Wind Icon22km/h
Tue. 14, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon18°/17°
Humidity Icon81%
Wind Icon19km/h
Wed. 15, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon21°/17°
Humidity Icon81%
Wind Icon21km/h
Thu. 16, Oct.
sunnySunny
Temperature Icon26°/18°
Humidity Icon69%
Wind Icon19km/h
Fri. 17, Oct.
partly cloudyPartly Cloudy
Temperature Icon22°/17°
Humidity Icon43%
Wind Icon33km/h
Sat. 18, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/15°
Humidity Icon67%
Wind Icon15km/h
Sun. 19, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/15°
Humidity Icon69%
Wind Icon18km/h
Mon. 20, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/15°
Humidity Icon66%
Wind Icon21km/h
Tue. 21, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/14°
Humidity Icon63%
Wind Icon18km/h
Wed. 22, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/15°
Humidity Icon68%
Wind Icon18km/h
Thu. 23, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/15°
Humidity Icon66%
Wind Icon20km/h
Fri. 24, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon19°/14°
Humidity Icon64%
Wind Icon16km/h
Sat. 25, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/14°
Humidity Icon67%
Wind Icon19km/h
Sun. 26, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/14°
Humidity Icon64%
Wind Icon18km/h
Mon. 27, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/13°
Humidity Icon62%
Wind Icon18km/h
Tue. 28, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon19°/13°
Humidity Icon66%
Wind Icon16km/h
Wed. 29, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon19°/13°
Humidity Icon66%
Wind Icon18km/h
Thu. 30, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon19°/12°
Humidity Icon62%
Wind Icon17km/h
Fri. 31, Oct.
moderate rain at timesModerate rain at times
Temperature Icon19°/13°
Humidity Icon61%
Wind Icon15km/h
Sat. 1, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/13°
Humidity Icon63%
Wind Icon16km/h
Sun. 2, Nov.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon19°/13°
Humidity Icon63%
Wind Icon15km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onMon. 6, Oct.

29.2°C

Low will be onThu. 30, Oct.

12.1°C

HumidityHumidity

High will be onTue. 14, Oct.

81%

Low will be onFri. 17, Oct.

43%

Wind SpeedWind Speed

High will be onFri. 17, Oct.

33.1km/h

Low will be onSat. 4, Oct.

10.1km/h

PrecipitationPrecipitation

High will be onWed. 22, Oct.

14.9mm

Low will be onSun. 5, Oct.

0.09mm

Ultraviolet IndexUV

High will be onWed. 8, Oct.

6

Low will be onSat. 4, Oct.

0.5

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