Reykjavik, Capital Region, Iceland Climate Change Severity

48
High
The current climate change severity in Reykjavik is High, with a 1.4% 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 Jul. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C

Reykjavik 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), Reykjavik temperature has changed by around +16.5%, and has experienced notable climate changes.

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

Comparison of Weather Condition (Historic Vs 2025)

HistoricDays

Year 2025Days

Change

sunnySunny
1420
42.8%
cloudyCloudy
3323
-30.3%
rainyRainy
125107
-14.3%
snowySnowy
1216
33.3%
mistyMisty
00
0%

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

Climate Change Indicators:

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

Temperature change of

+0.7 °C

Variation in annual rainfall

+18.1 %

Change in average humidity

+0.3 %

PM2.5 levels surged by

-67.7 %

Heatwave changed by

+6.1 day(s)

Coldwave changed by

+0.8 day(s)

Wind speeds changed by

+0.3 km/h

These indicators show that Reykjavik 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 Jul.

Reykjavik Weather Forecast 30 Days (August - September 2025)
Reykjavik, Capital Region, Iceland

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Tue. 12, Aug.
moderate rainModerate rain
Temperature Icon12°/10°
Humidity Icon85%
Wind Icon51km/h
Wed. 13, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon12°/10°
Humidity Icon84%
Wind Icon21km/h
Thu. 14, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon12°/10°
Humidity Icon78%
Wind Icon22km/h
Fri. 15, Aug.
moderate rainModerate rain
Temperature Icon12°/10°
Humidity Icon88%
Wind Icon31km/h
Sat. 16, Aug.
moderate rainModerate rain
Temperature Icon12°/11°
Humidity Icon95%
Wind Icon19km/h
Sun. 17, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon12°/11°
Humidity Icon95%
Wind Icon23km/h
Mon. 18, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon12°/11°
Humidity Icon91%
Wind Icon5km/h
Tue. 19, Aug.
partly cloudyPartly Cloudy
Temperature Icon13°/11°
Humidity Icon92%
Wind Icon14km/h
Wed. 20, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon15°/11°
Humidity Icon88%
Wind Icon10km/h
Thu. 21, Aug.
partly cloudyPartly Cloudy
Temperature Icon14°/11°
Humidity Icon81%
Wind Icon9km/h
Fri. 22, Aug.
sunnySunny
Temperature Icon14°/10°
Humidity Icon78%
Wind Icon7km/h
Sat. 23, Aug.
partly cloudyPartly Cloudy
Temperature Icon13°/10°
Humidity Icon80%
Wind Icon12km/h
Sun. 24, Aug.
partly cloudyPartly Cloudy
Temperature Icon12°/10°
Humidity Icon82%
Wind Icon16km/h
Mon. 25, Aug.
partly cloudyPartly Cloudy
Temperature Icon14°/9°
Humidity Icon76%
Wind Icon17km/h
Tue. 26, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/9°
Humidity Icon82%
Wind Icon24km/h
Wed. 27, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon80%
Wind Icon26km/h
Thu. 28, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon80%
Wind Icon25km/h
Fri. 29, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon80%
Wind Icon23km/h
Sat. 30, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon84%
Wind Icon28km/h
Sun. 31, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/9°
Humidity Icon84%
Wind Icon31km/h
Mon. 1, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon81%
Wind Icon27km/h
Tue. 2, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon81%
Wind Icon27km/h
Wed. 3, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon83%
Wind Icon27km/h
Thu. 4, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/8°
Humidity Icon83%
Wind Icon25km/h
Fri. 5, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/7°
Humidity Icon81%
Wind Icon21km/h
Sat. 6, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon83%
Wind Icon25km/h
Sun. 7, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon12°/8°
Humidity Icon82%
Wind Icon31km/h
Mon. 8, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/8°
Humidity Icon81%
Wind Icon29km/h
Tue. 9, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/7°
Humidity Icon82%
Wind Icon27km/h
Wed. 10, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/7°
Humidity Icon82%
Wind Icon29km/h
Thu. 11, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon11°/7°
Humidity Icon81%
Wind Icon27km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onWed. 20, Aug.

15.2°C

Low will be onThu. 11, Sep.

6.6°C

HumidityHumidity

High will be onSat. 16, Aug.

95%

Low will be onMon. 25, Aug.

76%

Wind SpeedWind Speed

High will be onTue. 12, Aug.

50.8km/h

Low will be onMon. 18, Aug.

4.7km/h

PrecipitationPrecipitation

High will be onTue. 12, Aug.

9.8mm

Low will be onTue. 19, Aug.

0.02mm

Ultraviolet IndexUV

High will be onTue. 19, Aug.

4

Low will be onFri. 15, Aug.

0.1

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