Tromso, Troms, Norway Climate Change Severity

48
High
The current climate change severity in Tromso is High, with a 6.6% 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 Oct. (Historical Vs 2025) - Weather Data Only
Low
020
Moderate
40
High
60
Very High
80
Extreme
100


Tromso Weather Condition Changes (Historic Vs 2025)

0%
0%
0%
0%
0%
0%
0%
0%
0%
0%
Historic
2025

Over the past 15 year(s), Tromso temperature has changed by around +32.2%, 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
2713
-51.8%

cloudyCloudy
5128
-45.09%

rainyRainy
148107
-27.7%

snowySnowy
3560
71.4%

mistyMisty
00
0%

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

Climate Change Indicators:

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

Temperature change of

+0.8 °C


Variation in annual rainfall

+27.6 %


Change in average humidity

-2.5 %


PM2.5 levels surged by

-36.7 %


Heatwave changed by

+8.1 day(s)


Coldwave changed by

-6.8 day(s)


Wind speeds changed by

+1.1 km/h


These indicators show that Tromso 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 Oct.

Tromso Weather Forecast 30 Days (November - December 2025)
Tromso, Troms, Norway


Condition
Temperature IconTemperature
Humidity Iconhumi.
Wind IconWind Speed
Wed. 5, Nov.
moderate rainModerate rain

Temperature Icon5°/3°

Humidity Icon91%

Wind Icon20km/h
Thu. 6, Nov.
moderate rainModerate rain

Temperature Icon4°/3°

Humidity Icon92%

Wind Icon39km/h
Fri. 7, Nov.
moderate rainModerate rain

Temperature Icon2°/1°

Humidity Icon91%

Wind Icon21km/h
Sat. 8, Nov.
moderate or heavy snow showersModerate or heavy snow showers

Temperature Icon3°/-2°

Humidity Icon86%

Wind Icon16km/h
Sun. 9, Nov.
blizzardBlizzard

Temperature Icon1°/-4°

Humidity Icon86%

Wind Icon44km/h
Mon. 10, Nov.
cloudyCloudy

Temperature Icon-4°/-7°

Humidity Icon88%

Wind Icon13km/h
Tue. 11, Nov.
heavy snowHeavy snow

Temperature Icon-2°/-4°

Humidity Icon92%

Wind Icon21km/h
Wed. 12, Nov.
heavy snowHeavy snow

Temperature Icon-1°/-2°

Humidity Icon95%

Wind Icon21km/h
Thu. 13, Nov.
heavy snowHeavy snow

Temperature Icon2°/-1°

Humidity Icon94%

Wind Icon20km/h
Fri. 14, Nov.
moderate rainModerate rain

Temperature Icon1°/-3°

Humidity Icon96%

Wind Icon18km/h
Sat. 15, Nov.
partly cloudyPartly Cloudy

Temperature Icon-5°/-8°

Humidity Icon81%

Wind Icon21km/h
Sun. 16, Nov.
patchy rain possiblePatchy rain nearby

Temperature Icon4°/0°

Humidity Icon94%

Wind Icon24km/h
Mon. 17, Nov.
patchy rain possiblePatchy rain nearby

Temperature Icon3°/3°

Humidity Icon96%

Wind Icon27km/h
Tue. 18, Nov.
patchy rain possiblePatchy rain nearby

Temperature Icon5°/3°

Humidity Icon96%

Wind Icon49km/h
Wed. 19, Nov.
moderate or heavy snow showersModerate or heavy snow showers

Temperature Icon-1°/-5°

Humidity Icon82%

Wind Icon19km/h
Thu. 20, Nov.
moderate or heavy snow showersModerate or heavy snow showers

Temperature Icon-2°/-5°

Humidity Icon80%

Wind Icon20km/h
Fri. 21, Nov.
moderate or heavy snow showersModerate or heavy snow showers

Temperature Icon-1°/-5°

Humidity Icon82%

Wind Icon21km/h
Sun. 23, Nov.
moderate or heavy snow showersModerate or heavy snow showers

Temperature Icon-2°/-5°

Humidity Icon83%

Wind Icon22km/h
Mon. 24, Nov.
moderate or heavy snow showersModerate or heavy snow showers

Temperature Icon-2°/-5°

Humidity Icon83%

Wind Icon21km/h
Tue. 25, Nov.
moderate or heavy snow showersModerate or heavy snow showers

Temperature Icon-2°/-6°

Humidity Icon82%

Wind Icon17km/h
Wed. 26, Nov.
moderate or heavy snow showersModerate or heavy snow showers

Temperature Icon-2°/-6°

Humidity Icon85%

Wind Icon18km/h
Thu. 27, Nov.
moderate or heavy snow showersModerate or heavy snow showers

Temperature Icon-2°/-5°

Humidity Icon84%

Wind Icon19km/h
Fri. 28, Nov.
moderate or heavy snow showersModerate or heavy snow showers

Temperature Icon-2°/-6°

Humidity Icon82%

Wind Icon21km/h
Sat. 29, Nov.
moderate or heavy snow showersModerate or heavy snow showers

Temperature Icon-2°/-6°

Humidity Icon84%

Wind Icon22km/h
Sun. 30, Nov.
moderate or heavy snow showersModerate or heavy snow showers

Temperature Icon-3°/-6°

Humidity Icon83%

Wind Icon23km/h
Mon. 1, Dec.
moderate or heavy snow showersModerate or heavy snow showers

Temperature Icon-1°/-6°

Humidity Icon83%

Wind Icon23km/h
Tue. 2, Dec.
moderate or heavy snow showersModerate or heavy snow showers

Temperature Icon-1°/-5°

Humidity Icon84%

Wind Icon23km/h
Wed. 3, Dec.
moderate or heavy snow showersModerate or heavy snow showers

Temperature Icon-2°/-5°

Humidity Icon81%

Wind Icon22km/h
Thu. 4, Dec.
moderate or heavy snow showersModerate or heavy snow showers

Temperature Icon-2°/-6°

Humidity Icon85%

Wind Icon23km/h
Fri. 5, Dec.
moderate or heavy snow showersModerate or heavy snow showers

Temperature Icon-3°/-7°

Humidity Icon85%

Wind Icon18km/h

Highest & Lowest Weather Forecasts

TemperatureTemperature

High will be onTue. 18, Nov.

4.8°C


Low will be onSat. 15, Nov.

-8.1°C

HumidityHumidity

High will be onFri. 14, Nov.

96%


Low will be onThu. 20, Nov.

80%

Wind SpeedWind Speed

High will be onTue. 18, Nov.

49.3km/h


Low will be onMon. 10, Nov.

13km/h

PrecipitationPrecipitation

High will be onSun. 9, Nov.

17.4mm


Low will be onSat. 15, Nov.

0.01mm

Ultraviolet IndexUV

High will be onSat. 15, Nov.

2


Low will be onMon. 10, Nov.

1