Trondheim, Sor Trondelag, Norway Climate Change Severity

62
Very High
The current climate change severity in Trondheim is Very High, with a 22.04% 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

Trondheim 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), Trondheim temperature has changed by around +31.8%, 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
2114
-33.3%
cloudyCloudy
4023
-42.5%
rainyRainy
10789
-16.8%
snowySnowy
1813
-27.7%
mistyMisty
00
0%

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

Climate Change Indicators:

Over the past 15 years, Trondheim has experienced measurable shifts in key climate parameters, contributing to the current severity score of 62 (within the Very High severity category). This suggests worsening climate conditions from the previous years. Here’s a breakdown of the specific changes observed:

Severity Score

62/100

Very High

Low
020
Moderate
40
High
60
Very High
80
Extreme
100

From 2010 to 2025, Trondheim experienced significant changes:

Temperature change of

+1.4 °C

Variation in annual rainfall

+34.6 %

Change in average humidity

-0.6 %

PM2.5 levels surged by

-15.7 %

Heatwave changed by

+10.4 day(s)

Coldwave changed by

-4.3 day(s)

Wind speeds changed by

+1.9 km/h

These indicators show a dramatic increase in volatility and worsening conditions. Trondheim's Very High severity status requires urgent and immediate adaptation and mitigation strategies, particularly focused on managing extreme weather events, improving air quality, and ensuring water resources are adequate for the population.

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

Trondheim Weather Forecast 30 Days (August - September 2025)
Trondheim, Sor Trondelag, Norway

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Sat. 9, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon19°/11°
Humidity Icon75%
Wind Icon27km/h
Sun. 10, Aug.
moderate rainModerate rain
Temperature Icon13°/11°
Humidity Icon87%
Wind Icon36km/h
Mon. 11, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon17°/10°
Humidity Icon74%
Wind Icon26km/h
Tue. 12, Aug.
moderate rainModerate rain
Temperature Icon13°/10°
Humidity Icon84%
Wind Icon34km/h
Wed. 13, Aug.
partly cloudyPartly Cloudy
Temperature Icon16°/9°
Humidity Icon80%
Wind Icon6km/h
Thu. 14, Aug.
partly cloudyPartly Cloudy
Temperature Icon21°/13°
Humidity Icon66%
Wind Icon18km/h
Fri. 15, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon18°/14°
Humidity Icon86%
Wind Icon8km/h
Sat. 16, Aug.
moderate rainModerate rain
Temperature Icon18°/12°
Humidity Icon90%
Wind Icon30km/h
Sun. 17, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon16°/10°
Humidity Icon76%
Wind Icon14km/h
Mon. 18, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon13°/10°
Humidity Icon84%
Wind Icon26km/h
Tue. 19, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon12°/10°
Humidity Icon83%
Wind Icon39km/h
Wed. 20, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon15°/10°
Humidity Icon88%
Wind Icon14km/h
Thu. 21, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon17°/12°
Humidity Icon84%
Wind Icon14km/h
Fri. 22, Aug.
patchy rain possiblePatchy rain nearby
Temperature Icon17°/12°
Humidity Icon84%
Wind Icon14km/h
Sat. 23, Aug.
moderate rain at timesModerate rain at times
Temperature Icon17°/8°
Humidity Icon76%
Wind Icon10km/h
Sun. 24, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/9°
Humidity Icon75%
Wind Icon13km/h
Mon. 25, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon18°/10°
Humidity Icon78%
Wind Icon14km/h
Tue. 26, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/10°
Humidity Icon78%
Wind Icon13km/h
Wed. 27, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/9°
Humidity Icon80%
Wind Icon13km/h
Thu. 28, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/9°
Humidity Icon79%
Wind Icon13km/h
Fri. 29, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/9°
Humidity Icon77%
Wind Icon13km/h
Sat. 30, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon16°/8°
Humidity Icon77%
Wind Icon14km/h
Sun. 31, Aug.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon15°/8°
Humidity Icon81%
Wind Icon12km/h
Mon. 1, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon16°/7°
Humidity Icon79%
Wind Icon12km/h
Tue. 2, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon16°/8°
Humidity Icon76%
Wind Icon12km/h
Wed. 3, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon15°/8°
Humidity Icon77%
Wind Icon13km/h
Thu. 4, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon15°/8°
Humidity Icon81%
Wind Icon13km/h
Fri. 5, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon15°/8°
Humidity Icon81%
Wind Icon13km/h
Sat. 6, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon16°/8°
Humidity Icon78%
Wind Icon14km/h
Sun. 7, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon16°/8°
Humidity Icon79%
Wind Icon14km/h
Mon. 8, Sep.
moderate or heavy rain showerModerate or heavy rain shower
Temperature Icon17°/9°
Humidity Icon77%
Wind Icon14km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onThu. 14, Aug.

21.4°C

Low will be onMon. 1, Sep.

7.4°C

HumidityHumidity

High will be onSat. 16, Aug.

90%

Low will be onThu. 14, Aug.

66%

Wind SpeedWind Speed

High will be onTue. 19, Aug.

38.9km/h

Low will be onWed. 13, Aug.

5.8km/h

PrecipitationPrecipitation

High will be onSat. 16, Aug.

10.7mm

Low will be onThu. 21, Aug.

0.2mm

Ultraviolet IndexUV

High will be onThu. 14, Aug.

5

Low will be onSun. 10, Aug.

0.5

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