Trondheim, Sor Trondelag, Norway Climate Change Severity

48
High
The current climate change severity in Trondheim is High, with a 1.5% improvement in the climate score compared to last 15 years. This suggests improved conditions, with more favorable environmental indicators and a reduction in negative impacts.
Data: Jan. to Oct. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100
°C (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 +17.9%, 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
3220
-37.5%
cloudyCloudy
5936
-38.9%
rainyRainy
163114
-30.06%
snowySnowy
1913
-31.5%
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 48 (within the High severity category). While the score remains High, certain factors have improved over time. 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, Trondheim experienced significant changes:

Temperature change of

+1.1 °C

Variation in annual rainfall

+28.5 %

Change in average humidity

-0.7 %

PM2.5 levels surged by

-14.3 %

Heatwave changed by

+7.7 day(s)

Coldwave changed by

-2.9 day(s)

Wind speeds changed by

+2.1 km/h

These indicators show improvement in key parametes of climate, but Trondheim remains in the High severity category. Continuous focus on climate resilience is necessary to avoid further worsening and ensure sustainability.

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

Trondheim Weather Forecast 30 Days (November - December 2025)
Trondheim, Sor Trondelag, Norway

Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Sun. 16, Nov.
moderate rainModerate rain
Temperature Icon4°/0°
Humidity Icon75%
Wind Icon33km/h
Mon. 17, Nov.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon3°/-2°
Humidity Icon83%
Wind Icon22km/h
Tue. 18, Nov.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon1°/-2°
Humidity Icon87%
Wind Icon14km/h
Wed. 19, Nov.
moderate snowModerate snow
Temperature Icon-2°/-8°
Humidity Icon84%
Wind Icon14km/h
Thu. 20, Nov.
sunnySunny
Temperature Icon-7°/-11°
Humidity Icon81%
Wind Icon9km/h
Fri. 21, Nov.
sunnySunny
Temperature Icon-9°/-11°
Humidity Icon77%
Wind Icon9km/h
Sat. 22, Nov.
sunnySunny
Temperature Icon-9°/-11°
Humidity Icon67%
Wind Icon12km/h
Sun. 23, Nov.
partly cloudyPartly Cloudy
Temperature Icon-7°/-10°
Humidity Icon75%
Wind Icon16km/h
Mon. 24, Nov.
sunnySunny
Temperature Icon-5°/-7°
Humidity Icon81%
Wind Icon16km/h
Tue. 25, Nov.
overcastOvercast
Temperature Icon0°/-4°
Humidity Icon76%
Wind Icon17km/h
Wed. 26, Nov.
light freezing rainLight freezing rain
Temperature Icon-2°/-7°
Humidity Icon80%
Wind Icon12km/h
Thu. 27, Nov.
light freezing rainLight freezing rain
Temperature Icon-5°/-9°
Humidity Icon88%
Wind Icon9km/h
Fri. 28, Nov.
heavy snowHeavy snow
Temperature Icon3°/-1°
Humidity Icon92%
Wind Icon25km/h
Sat. 29, Nov.
patchy rain possiblePatchy rain nearby
Temperature Icon4°/1°
Humidity Icon90%
Wind Icon30km/h
Sun. 30, Nov.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon-1°/-4°
Humidity Icon81%
Wind Icon17km/h
Mon. 1, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon-1°/-4°
Humidity Icon83%
Wind Icon16km/h
Tue. 2, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon-1°/-5°
Humidity Icon83%
Wind Icon16km/h
Wed. 3, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon-1°/-5°
Humidity Icon81%
Wind Icon16km/h
Thu. 4, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon-1°/-5°
Humidity Icon82%
Wind Icon18km/h
Fri. 5, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon-1°/-5°
Humidity Icon83%
Wind Icon18km/h
Sat. 6, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon-2°/-5°
Humidity Icon83%
Wind Icon17km/h
Sun. 7, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon-2°/-5°
Humidity Icon86%
Wind Icon16km/h
Mon. 8, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon-1°/-6°
Humidity Icon87%
Wind Icon15km/h
Tue. 9, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon-2°/-6°
Humidity Icon87%
Wind Icon16km/h
Wed. 10, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon-1°/-6°
Humidity Icon86%
Wind Icon14km/h
Thu. 11, Dec.
moderate snowModerate snow
Temperature Icon-1°/-5°
Humidity Icon86%
Wind Icon13km/h
Fri. 12, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon-2°/-6°
Humidity Icon87%
Wind Icon14km/h
Sat. 13, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon-3°/-6°
Humidity Icon87%
Wind Icon13km/h
Sun. 14, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon-2°/-6°
Humidity Icon85%
Wind Icon14km/h
Mon. 15, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon0°/-6°
Humidity Icon86%
Wind Icon16km/h
Tue. 16, Dec.
moderate or heavy snow showersModerate or heavy snow showers
Temperature Icon0°/-5°
Humidity Icon85%
Wind Icon19km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onSun. 16, Nov.

4.2°C

Low will be onSat. 22, Nov.

-11.4°C

HumidityHumidity

High will be onFri. 28, Nov.

92%

Low will be onSat. 22, Nov.

67%

Wind SpeedWind Speed

High will be onSun. 16, Nov.

32.8km/h

Low will be onThu. 20, Nov.

8.6km/h

PrecipitationPrecipitation

High will be onTue. 18, Nov.

14.2mm

Low will be onWed. 26, Nov.

0.06mm

Ultraviolet IndexUV

High will be onFri. 21, Nov.

2

Low will be onTue. 25, Nov.

1

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