Muroran, Hokkaido, Japan Climate Change Severity

48
High
The current climate change severity in Muroran is High, with a 5.2% 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 Oct. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (c)

Muroran 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), Muroran temperature has changed by around +13.8%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
3332
-3.03%
cloudyCloudy
7431
-58.1%
rainyRainy
123124
0.8%
snowySnowy
1316
23.07%
mistyMisty
02
100%

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

Climate Change Indicators:

Over the past 15 years, Muroran has experienced measurable shifts in key climate parameters, contributing to the current severity score of 48 (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

48/100

High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Muroran experienced significant changes:

Temperature change of

+1.2 °C

Variation in annual rainfall

-17.8 %

Change in average humidity

-2.5 %

PM2.5 levels surged by

-24.2 %

Heatwave changed by

+6.5 day(s)

Coldwave changed by

-2.2 day(s)

Wind speeds changed by

+3.1 km/h

These indicators show that Muroran 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 Oct.

Muroran Weather Forecast 30 Days (November - December 2025)
Muroran, Hokkaido, Japan

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Tue. 25, Nov.
sunnySunny
Temperature Icon8°/5°
Humidity Icon76%
Wind Icon12km/h
Wed. 26, Nov.
partly cloudyPartly Cloudy
Temperature Icon7°/3°
Humidity Icon73%
Wind Icon17km/h
Thu. 27, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon7°/3°
Humidity Icon72%
Wind Icon27km/h
Fri. 28, Nov.
moderate rainModerate rain
Temperature Icon10°/1°
Humidity Icon77%
Wind Icon51km/h
Sat. 29, Nov.
light snowLight snow
Temperature Icon5°/1°
Humidity Icon62%
Wind Icon53km/h
Sun. 30, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon8°/4°
Humidity Icon73%
Wind Icon35km/h
Mon. 1, Dec.
patchy rain possiblePatchy rain nearby
Temperature Icon11°/4°
Humidity Icon76%
Wind Icon57km/h
Tue. 2, Dec.
blowing snowBlowing snow
Temperature Icon2°/2°
Humidity Icon60%
Wind Icon55km/h
Wed. 3, Dec.
blizzardBlizzard
Temperature Icon1°/-1°
Humidity Icon64%
Wind Icon40km/h
Thu. 4, Dec.
blizzardBlizzard
Temperature Icon0°/-1°
Humidity Icon74%
Wind Icon37km/h
Fri. 5, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon0°/-2°
Humidity Icon71%
Wind Icon28km/h
Sat. 6, Dec.
blizzardBlizzard
Temperature Icon1°/-2°
Humidity Icon64%
Wind Icon38km/h
Sun. 7, Dec.
light snow showersLight snow showers
Temperature Icon1°/-1°
Humidity Icon72%
Wind Icon32km/h
Mon. 8, Dec.
partly cloudyPartly Cloudy
Temperature Icon5°/0°
Humidity Icon71%
Wind Icon32km/h
Tue. 9, Dec.
patchy moderate snowPatchy moderate snow
Temperature Icon2°/-3°
Humidity Icon77%
Wind Icon22km/h
Wed. 10, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon3°/-1°
Humidity Icon78%
Wind Icon23km/h
Thu. 11, Dec.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon3°/-1°
Humidity Icon78%
Wind Icon26km/h
Fri. 12, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon1°/-3°
Humidity Icon77%
Wind Icon28km/h
Sat. 13, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon1°/-3°
Humidity Icon76%
Wind Icon29km/h
Sun. 14, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon1°/-4°
Humidity Icon76%
Wind Icon26km/h
Mon. 15, Dec.
moderate snowModerate snow
Temperature Icon0°/-4°
Humidity Icon78%
Wind Icon28km/h
Tue. 16, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon0°/-4°
Humidity Icon80%
Wind Icon28km/h
Wed. 17, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon0°/-4°
Humidity Icon80%
Wind Icon28km/h
Thu. 18, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon-1°/-5°
Humidity Icon79%
Wind Icon28km/h
Fri. 19, Dec.
light freezing rainLight freezing rain
Temperature Icon-1°/-5°
Humidity Icon77%
Wind Icon25km/h
Sat. 20, Dec.
moderate snowModerate snow
Temperature Icon-1°/-4°
Humidity Icon77%
Wind Icon26km/h
Sun. 21, Dec.
moderate snowModerate snow
Temperature Icon0°/-4°
Humidity Icon77%
Wind Icon25km/h
Mon. 22, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon1°/-3°
Humidity Icon80%
Wind Icon27km/h
Tue. 23, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon0°/-4°
Humidity Icon79%
Wind Icon26km/h
Wed. 24, Dec.
patchy moderate snowPatchy moderate snow
Temperature Icon-1°/-5°
Humidity Icon79%
Wind Icon25km/h
Thu. 25, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon-1°/-6°
Humidity Icon79%
Wind Icon27km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onMon. 1, Dec.

10.5°C

Low will be onThu. 25, Dec.

-5.6°C

HumidityHumidity

High will be onTue. 16, Dec.

80%

Low will be onTue. 2, Dec.

60%

Wind SpeedWind Speed

High will be onMon. 1, Dec.

57.2km/h

Low will be onTue. 25, Nov.

11.5km/h

PrecipitationPrecipitation

High will be onMon. 22, Dec.

6.6mm

Low will be onWed. 26, Nov.

0.01mm

Ultraviolet IndexUV

High will be onSun. 30, Nov.

2

Low will be onTue. 25, Nov.

0.2

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