Otaru, Hokkaido, Japan Climate Change Severity
High
Otaru Weather Condition Changes (Historic Vs 2025)
Over the past 15 year(s), Otaru temperature has changed by around +17.7%, and has experienced notable climate changes.
Comparison of Weather Condition (Historic Vs 2025)
HistoricDays
Year 2025Days
Change
Sunny
Cloudy
Rainy
Snowy
MistyDisclaimer: Other weather conditions not shown may affect the total day count.
Climate Change Indicators:
Over the past 15 years, Otaru 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
From 2010 to 2025, Otaru experienced significant changes:
Temperature change of
+1.3 °C
Variation in annual rainfall
-12.4 %
Change in average humidity
-4.3 %
PM2.5 levels surged by
-16.2 %
Heatwave changed by
+11.06 day(s)
Coldwave changed by
-6.5 day(s)
Wind speeds changed by
+1.5 km/h
These indicators show that Otaru 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.
Otaru Weather Forecast 30 Days (November - December 2025)Otaru, Hokkaido, Japan
Temperature
humi.
Wind Speed
Heavy rain11°/9°90%67km/h
Moderate rain9°/6°83%45km/hPatchy rain nearby6°/3°69%44km/hSunny12°/2°70%14km/hPatchy rain nearby13°/6°78%15km/hCloudy 11°/5°70%13km/hPatchy rain nearby6°/1°70%30km/hPatchy rain nearby4°/1°83%12km/hPatchy rain nearby6°/2°79%10km/hPatchy rain nearby7°/2°86%21km/hPatchy rain nearby6°/1°70%29km/hPatchy rain nearby5°/0°73%34km/hPatchy rain nearby8°/0°74%21km/h
Moderate or heavy rain shower7°/0°81%22km/hModerate or heavy rain shower5°/0°81%19km/hModerate or heavy rain shower5°/-1°80%19km/hModerate or heavy rain shower5°/-1°81%21km/hModerate or heavy rain shower6°/-1°82%20km/hModerate or heavy rain shower5°/-1°85%21km/hModerate or heavy rain shower4°/-2°84%21km/h
Moderate or heavy snow showers4°/-2°84%20km/hModerate or heavy snow showers3°/-3°82%21km/hModerate or heavy snow showers3°/-3°82%21km/hModerate or heavy snow showers2°/-3°82%22km/hModerate or heavy snow showers3°/-3°82%22km/hModerate or heavy snow showers4°/-2°85%22km/hModerate or heavy snow showers2°/-3°85%21km/hModerate or heavy snow showers2°/-5°85%22km/hModerate or heavy snow showers0°/-5°85%23km/hModerate or heavy snow showers0°/-5°85%24km/hHighest & Lowest Weather Forecasts
TemperatureHumidityWind Speed
Precipitation
UV
