Chiba, Chiba, Japan Climate Change Severity

57
High
The current climate change severity in Chiba is High, with a 25.3% 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 Aug. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Chiba 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), Chiba temperature has changed by around +4.3%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
4944
-10.2%
cloudyCloudy
6352
-17.4%
rainyRainy
10490
-13.4%
snowySnowy
00
0%
mistyMisty
00
0%

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

Climate Change Indicators:

Over the past 15 years, Chiba has experienced measurable shifts in key climate parameters, contributing to the current severity score of 57 (within the High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

57/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Chiba experienced significant changes:

Temperature change of

+0.7 °C

Variation in annual rainfall

-30.1 %

Change in average humidity

-8.08 %

PM2.5 levels surged by

-23.6 %

Heatwave changed by

+10.4 day(s)

Coldwave changed by

-4.5 day(s)

Wind speeds changed by

-1.6 km/h

These indicators show that Chiba is experiencing a more volatile and extreme climate, reinforcing the need for urgent intervention to mitigate risks. As the severity score rises, focus must shift to adaptation and emergency preparedness.

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

Chiba Weather Forecast 30 Days (September - October 2025)
Chiba, Chiba, Japan

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Sat. 6, Sep.
partly cloudyPartly Cloudy
Temperature Icon30°/23°
Humidity Icon75%
Wind Icon14km/h
Sun. 7, Sep.
partly cloudyPartly Cloudy
Temperature Icon31°/24°
Humidity Icon73%
Wind Icon19km/h
Mon. 8, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon33°/26°
Humidity Icon75%
Wind Icon13km/h
Tue. 9, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon31°/25°
Humidity Icon74%
Wind Icon10km/h
Wed. 10, Sep.
moderate rainModerate rain
Temperature Icon28°/24°
Humidity Icon83%
Wind Icon18km/h
Thu. 11, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon26°/22°
Humidity Icon83%
Wind Icon13km/h
Fri. 12, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon29°/23°
Humidity Icon74%
Wind Icon16km/h
Sat. 13, Sep.
partly cloudyPartly Cloudy
Temperature Icon29°/23°
Humidity Icon75%
Wind Icon33km/h
Sun. 14, Sep.
sunnySunny
Temperature Icon30°/26°
Humidity Icon73%
Wind Icon32km/h
Mon. 15, Sep.
partly cloudyPartly Cloudy
Temperature Icon30°/24°
Humidity Icon72%
Wind Icon26km/h
Tue. 16, Sep.
sunnySunny
Temperature Icon31°/26°
Humidity Icon73%
Wind Icon25km/h
Wed. 17, Sep.
sunnySunny
Temperature Icon31°/26°
Humidity Icon69%
Wind Icon32km/h
Thu. 18, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon31°/26°
Humidity Icon73%
Wind Icon27km/h
Fri. 19, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon29°/23°
Humidity Icon77%
Wind Icon18km/h
Sat. 20, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/21°
Humidity Icon74%
Wind Icon23km/h
Sun. 21, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/21°
Humidity Icon74%
Wind Icon23km/h
Mon. 22, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon27°/21°
Humidity Icon75%
Wind Icon21km/h
Tue. 23, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/20°
Humidity Icon80%
Wind Icon22km/h
Wed. 24, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/20°
Humidity Icon76%
Wind Icon22km/h
Thu. 25, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/20°
Humidity Icon78%
Wind Icon23km/h
Fri. 26, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/20°
Humidity Icon75%
Wind Icon20km/h
Sat. 27, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/20°
Humidity Icon76%
Wind Icon22km/h
Sun. 28, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/20°
Humidity Icon74%
Wind Icon21km/h
Mon. 29, Sep.
heavy rain at timesHeavy rain at times
Temperature Icon25°/20°
Humidity Icon73%
Wind Icon17km/h
Tue. 30, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/20°
Humidity Icon74%
Wind Icon24km/h
Wed. 1, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/20°
Humidity Icon77%
Wind Icon28km/h
Thu. 2, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/20°
Humidity Icon73%
Wind Icon22km/h
Fri. 3, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/20°
Humidity Icon73%
Wind Icon19km/h
Sat. 4, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/20°
Humidity Icon74%
Wind Icon22km/h
Sun. 5, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/19°
Humidity Icon76%
Wind Icon22km/h
Mon. 6, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon23°/19°
Humidity Icon75%
Wind Icon27km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onMon. 8, Sep.

32.7°C

Low will be onMon. 6, Oct.

18.6°C

HumidityHumidity

High will be onWed. 10, Sep.

83%

Low will be onWed. 17, Sep.

69%

Wind SpeedWind Speed

High will be onSat. 13, Sep.

32.8km/h

Low will be onTue. 9, Sep.

10.1km/h

PrecipitationPrecipitation

High will be onSun. 5, Oct.

19mm

Low will be onSat. 13, Sep.

0.01mm

Ultraviolet IndexUV

High will be onSat. 13, Sep.

7

Low will be onTue. 9, Sep.

1.5

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