Iwakuni, Yamaguchi, Japan Climate Change Severity

33
Moderate
The current climate change severity in Iwakuni is Moderate, with a 21.3% improvement in the climate score compared to last 16 years. This suggests improved conditions, with more favorable environmental indicators and a reduction in negative impacts.
Data: Jan. to May (Historical Vs 2026) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Iwakuni Weather Condition Changes (Historic Vs 2026)

2026
0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2026

Over the past 16 year(s), Iwakuni temperature has changed by around +1.8%, and has experienced notable climate changes.

Sunny
Cloudy
Rainy
Snowy
Misty
Data: Jan. to May (Historical Vs 2026)

Comparison of Weather Condition (Historic Vs 2026)

HistoricDays

Year 2026Days

Change

sunnySunny
3331
-6.06%
cloudyCloudy
4631
-32.6%
rainyRainy
5257
9.6%
snowySnowy
07
100%
mistyMisty
00
0%

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

Climate Change Indicators:

Over the past 16 years, Iwakuni has experienced measurable improvements in key climate parameters, contributing to the current severity score of 33 (within the Moderate severity category). This suggests improving climate conditions compared to previous years. Here’s a breakdown of the specific changes observed:

Severity Score

33/100

Moderate

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2026, Iwakuni experienced significant changes:

Temperature change of

+0.19 °C

Variation in annual rainfall

-16.65 %

Change in average humidity

-3.66 %

PM2.5 levels surged by

-2.03 %

Heatwave changed by

-3 Days

Coldwave changed by

-1 Days

Wind speeds changed by

+0.75 km/h

These indicators show reduced climate volatility, offering a valuable window to reinforce sustainable practices and strengthen long-term climate resilience. As the severity shifts toward Moderate, it is important to maintain momentum in climate adaptation efforts.

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

Iwakuni Weather Forecast 30 Days (June - July 2026)
Iwakuni, Yamaguchi, Japan

Condition
Temperature IconTemperature
Humidity IconHumi.
Wind IconWind Speed
Wed. 3, Jun.
patchy rain possiblePatchy rain nearby
Temperature Icon26°/18°
Humidity Icon79%
Wind Icon33.5km/h
Thu. 4, Jun.
heavy rainHeavy Rain
Temperature Icon21°/17°
Humidity Icon85%
Wind Icon10.4km/h
Fri. 5, Jun.
moderate rainRain
Temperature Icon22°/18°
Humidity Icon93%
Wind Icon9.7km/h
Sat. 6, Jun.
patchy rain possiblePatchy rain nearby
Temperature Icon23°/19°
Humidity Icon86%
Wind Icon6.5km/h
Sun. 7, Jun.
patchy rain possiblePatchy rain nearby
Temperature Icon22°/18°
Humidity Icon86%
Wind Icon17.3km/h
Mon. 8, Jun.
patchy rain possiblePatchy rain nearby
Temperature Icon24°/17°
Humidity Icon81%
Wind Icon7.9km/h
Tue. 9, Jun.
partly cloudyPartly Cloudy
Temperature Icon23°/15°
Humidity Icon67%
Wind Icon9km/h
Wed. 10, Jun.
sunnySunny
Temperature Icon23°/17°
Humidity Icon73%
Wind Icon9km/h
Thu. 11, Jun.
sunnySunny
Temperature Icon23°/16°
Humidity Icon82%
Wind Icon9km/h
Fri. 12, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/18°
Humidity Icon84%
Wind Icon10.4km/h
Sat. 13, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/18°
Humidity Icon85%
Wind Icon11.5km/h
Sun. 14, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/18°
Humidity Icon84%
Wind Icon12.2km/h
Mon. 15, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/19°
Humidity Icon84%
Wind Icon11.9km/h
Tue. 16, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/18°
Humidity Icon83%
Wind Icon12.2km/h
Wed. 17, Jun.
heavy rain at timesHeavy rain at times
Temperature Icon26°/18°
Humidity Icon78%
Wind Icon9.7km/h
Thu. 18, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/18°
Humidity Icon85%
Wind Icon11.9km/h
Fri. 19, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/19°
Humidity Icon86%
Wind Icon11.2km/h
Sat. 20, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/19°
Humidity Icon84%
Wind Icon11.9km/h
Sun. 21, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon24°/19°
Humidity Icon87%
Wind Icon12.6km/h
Mon. 22, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/19°
Humidity Icon86%
Wind Icon10.8km/h
Tue. 23, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/19°
Humidity Icon85%
Wind Icon11.2km/h
Wed. 24, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/19°
Humidity Icon85%
Wind Icon11.9km/h
Thu. 25, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/20°
Humidity Icon85%
Wind Icon11.2km/h
Fri. 26, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/20°
Humidity Icon88%
Wind Icon13.3km/h
Sat. 27, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon25°/20°
Humidity Icon88%
Wind Icon12.6km/h
Sun. 28, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon27°/20°
Humidity Icon87%
Wind Icon11.2km/h
Mon. 29, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon27°/21°
Humidity Icon87%
Wind Icon11.5km/h
Tue. 30, Jun.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/21°
Humidity Icon90%
Wind Icon11.9km/h
Wed. 1, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon27°/21°
Humidity Icon87%
Wind Icon14.4km/h
Thu. 2, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon27°/21°
Humidity Icon86%
Wind Icon10.1km/h
Fri. 3, Jul.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon26°/21°
Humidity Icon90%
Wind Icon13.7km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSun. 28, Jun.

27°C

Low will be onTue. 9, Jun.

15°C

HumidityHumidity

High will be onFri. 5, Jun.

93%

Low will be onTue. 9, Jun.

67%

Wind SpeedWind Speed

High will be onWed. 3, Jun.

33.5km/h

Low will be onSat. 6, Jun.

6.5km/h

PrecipitationPrecipitation

High will be onThu. 4, Jun.

20.7mm

Low will be onThu. 11, Jun.

0.01mm

Ultraviolet IndexUV

High will be onSat. 6, Jun.

9.5

Low will be onFri. 5, Jun.

2.8

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