Seto, Aichi, Japan Climate Change Severity

57
High
The current climate change severity in Seto is High, with a 19.2% 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)

Seto 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), Seto temperature has changed by around +3.7%, 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
5030
-40%
cloudyCloudy
5543
-21.8%
rainyRainy
117109
-6.8%
snowySnowy
13
200%
mistyMisty
00
0%

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

Climate Change Indicators:

Over the past 15 years, Seto 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, Seto experienced significant changes:

Temperature change of

+0.5 °C

Variation in annual rainfall

-28.2 %

Change in average humidity

-5.4 %

PM2.5 levels surged by

+238.7 %

Heatwave changed by

+2.2 day(s)

Coldwave changed by

+2.4 day(s)

Wind speeds changed by

+2.3 km/h

These indicators show that Seto 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.

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

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Sat. 27, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon29°/19°
Humidity Icon61%
Wind Icon10km/h
Sun. 28, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon27°/21°
Humidity Icon72%
Wind Icon10km/h
Mon. 29, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon25°/19°
Humidity Icon77%
Wind Icon18km/h
Tue. 30, Sep.
patchy rain possiblePatchy rain nearby
Temperature Icon27°/17°
Humidity Icon68%
Wind Icon11km/h
Wed. 1, Oct.
moderate rainModerate rain
Temperature Icon24°/18°
Humidity Icon85%
Wind Icon7km/h
Thu. 2, Oct.
sunnySunny
Temperature Icon26°/17°
Humidity Icon71%
Wind Icon9km/h
Fri. 3, Oct.
moderate rainModerate rain
Temperature Icon20°/17°
Humidity Icon86%
Wind Icon13km/h
Sat. 4, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon19°/17°
Humidity Icon95%
Wind Icon12km/h
Sun. 5, Oct.
partly cloudyPartly Cloudy
Temperature Icon26°/17°
Humidity Icon78%
Wind Icon7km/h
Mon. 6, Oct.
partly cloudyPartly Cloudy
Temperature Icon27°/19°
Humidity Icon76%
Wind Icon9km/h
Tue. 7, Oct.
sunnySunny
Temperature Icon27°/19°
Humidity Icon67%
Wind Icon7km/h
Wed. 8, Oct.
cloudyCloudy
Temperature Icon26°/19°
Humidity Icon78%
Wind Icon11km/h
Thu. 9, Oct.
sunnySunny
Temperature Icon22°/15°
Humidity Icon60%
Wind Icon15km/h
Fri. 10, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon17°/16°
Humidity Icon68%
Wind Icon8km/h
Sat. 11, Oct.
patchy rain possiblePatchy rain nearby
Temperature Icon22°/16°
Humidity Icon83%
Wind Icon7km/h
Sun. 12, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon23°/14°
Humidity Icon73%
Wind Icon13km/h
Mon. 13, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/14°
Humidity Icon72%
Wind Icon12km/h
Tue. 14, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/14°
Humidity Icon72%
Wind Icon10km/h
Wed. 15, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/14°
Humidity Icon74%
Wind Icon11km/h
Thu. 16, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/13°
Humidity Icon73%
Wind Icon11km/h
Fri. 17, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/13°
Humidity Icon75%
Wind Icon12km/h
Sat. 18, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon22°/12°
Humidity Icon72%
Wind Icon10km/h
Sun. 19, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/12°
Humidity Icon75%
Wind Icon9km/h
Mon. 20, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/12°
Humidity Icon74%
Wind Icon12km/h
Tue. 21, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/12°
Humidity Icon72%
Wind Icon10km/h
Wed. 22, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/13°
Humidity Icon73%
Wind Icon10km/h
Thu. 23, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon21°/13°
Humidity Icon76%
Wind Icon13km/h
Fri. 24, Oct.
heavy rain at timesHeavy rain at times
Temperature Icon20°/12°
Humidity Icon72%
Wind Icon10km/h
Sat. 25, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon19°/12°
Humidity Icon74%
Wind Icon11km/h
Sun. 26, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/10°
Humidity Icon72%
Wind Icon13km/h
Mon. 27, Oct.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon20°/10°
Humidity Icon70%
Wind Icon12km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSat. 27, Sep.

29°C

Low will be onSun. 26, Oct.

10.2°C

HumidityHumidity

High will be onSat. 4, Oct.

95%

Low will be onThu. 9, Oct.

60%

Wind SpeedWind Speed

High will be onMon. 29, Sep.

18.4km/h

Low will be onSun. 5, Oct.

6.5km/h

PrecipitationPrecipitation

High will be onFri. 3, Oct.

14.6mm

Low will be onSun. 5, Oct.

0.03mm

Ultraviolet IndexUV

High will be onThu. 2, Oct.

6

Low will be onMon. 29, Sep.

0.4

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