Hafnarfjordur, Reykjavik, Iceland Climate Change Severity
Moderate
Hafnarfjordur Weather Condition Changes (Historic Vs 2025)
Over the past 15 year(s), Hafnarfjordur temperature has changed by around +12.4%, 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, Hafnarfjordur 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
From 2010 to 2025, Hafnarfjordur experienced significant changes:
Temperature change of
+0.6 °C
Variation in annual rainfall
+17.8 %
Change in average humidity
+0.7 %
PM2.5 levels surged by
+10.6 %
Heatwave changed by
+9.8 day(s)
Coldwave changed by
+2.3 day(s)
Wind speeds changed by
+1.02 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.
Hafnarfjordur Weather Forecast 30 Days (November - December 2025)Hafnarfjordur, Reykjavik, Iceland
Temperature
humi.
Wind SpeedPatchy rain nearby5°/3°86%19km/h
Partly Cloudy 3°/2°83%16km/hPartly Cloudy 2°/0°70%9km/hSunny0°/0°77%22km/h
Moderate rain5°/1°89%32km/hPatchy rain nearby2°/1°87%12km/hPatchy rain nearby3°/1°80%49km/hPatchy rain nearby3°/0°71%45km/hPatchy rain nearby2°/0°82%10km/h
Moderate or heavy snow showers1°/-1°92%16km/hPartly Cloudy 1°/-1°83%24km/hSunny-2°/-3°77%24km/h
Patchy moderate snow0°/-4°85%22km/hPatchy rain nearby2°/0°78%21km/hModerate or heavy snow showers1°/-3°80%31km/h
Moderate snow0°/-4°78%26km/hModerate or heavy snow showers0°/-4°79%28km/hModerate or heavy snow showers2°/-2°80%30km/hModerate or heavy snow showers2°/-1°80%29km/hModerate or heavy snow showers2°/-2°80%34km/h
Moderate or heavy rain shower3°/-1°80%35km/hModerate or heavy snow showers2°/-1°83%30km/hModerate or heavy snow showers2°/-1°81%30km/hModerate or heavy snow showers2°/-2°80%30km/hModerate or heavy snow showers1°/-3°80%30km/hModerate or heavy snow showers2°/-3°79%31km/hModerate or heavy snow showers2°/-2°80%32km/hModerate or heavy snow showers2°/-2°82%31km/hModerate or heavy snow showers2°/-2°77%36km/hModerate or heavy snow showers2°/-2°78%35km/hModerate or heavy snow showers1°/-2°78%31km/hHighest & Lowest Weather Forecasts
TemperatureHumidityWind Speed
Precipitation
UV
